Peer Review History

Original SubmissionFebruary 2, 2022
Decision Letter - Binaya Sapkota, Editor

PONE-D-22-03317Estimating treatment costs for uncomplicated diabetes at the International Rescue Committee Hagadera Hospital in KenyaPLOS ONE

Dear Dr. Kanya,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

==============================

Thank you very much for submitting your work to PLOS ONE. The reviewers have suggested that you revise your manuscript based on their comments to make it publishable. Please address the reviewers' concerns point-by-point and submit your revised manuscript.

Also, please address following editorial concerns as well:

1. The American Diabetes Association has suggested that the adjective 'diabetic' be not used with patients. Hence, write these as 'diabetes patients' or 'patients with diabetes'.

2. Rewrite references 27 and 35 properly.

==============================

Please submit your revised manuscript by Jun 09 2022 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

Please include the following items when submitting your revised manuscript:

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.
  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.
  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.
If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols. Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols.

We look forward to receiving your revised manuscript.

Kind regards,

Binaya Sapkota, PharmD

Academic Editor

PLOS ONE

Journal Requirements:

When submitting your revision, we need you to address these additional requirements.

1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at

https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf  and

https://journals.plos.org/plosone/s/file?id=ba62/PLOSOne_formatting_sample_title_authors_affiliations.pdf

2. Please provide additional details regarding participant consent. In the ethics statement in the Methods and online submission information, please ensure that you have specified (1) whether consent was informed and (2) what type you obtained (for instance, written or verbal, and if verbal, how it was documented and witnessed). If your study included minors, state whether you obtained consent from parents or guardians. If the need for consent was waived by the ethics committee, please include this information.

If you are reporting a retrospective study of medical records or archived samples, please ensure that you have discussed whether all data were fully anonymized before you accessed them and/or whether the IRB or ethics committee waived the requirement for informed consent. If patients provided informed written consent to have data from their medical records used in research, please include this information.

3. Please include a complete copy of PLOS’ questionnaire on inclusivity in global research in your revised manuscript. Our policy for research in this area aims to improve transparency in the reporting of research performed outside of researchers’ own country or community. The policy applies to researchers who have travelled to a different country to conduct research, research with Indigenous populations or their lands, and research on cultural artefacts. The questionnaire can also be requested at the journal’s discretion for any other submissions, even if these conditions are not met.  Please find more information on the policy and a link to download a blank copy of the questionnaire here: https://journals.plos.org/plosone/s/best-practices-in-research-reporting. Please upload a completed version of your questionnaire as Supporting Information when you resubmit your manuscript.

4. We note that you have stated that you will provide repository information for your data at acceptance. Should your manuscript be accepted for publication, we will hold it until you provide the relevant accession numbers or DOIs necessary to access your data. If you wish to make changes to your Data Availability statement, please describe these changes in your cover letter and we will update your Data Availability statement to reflect the information you provide.

5. Please include your full ethics statement in the ‘Methods’ section of your manuscript file. In your statement, please include the full name of the IRB or ethics committee who approved or waived your study, as well as whether or not you obtained informed written or verbal consent. If consent was waived for your study, please include this information in your statement as well.

6. Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

Additional Editor Comments (if provided):

Thank you very much for submitting your work to PLOS ONE. The reviewers have suggested that you revise your manuscript based on their comments to make it publishable. Please address the reviewers' concerns point-by-point and submit your revised manuscript.

Also, please address following editorial concerns as well:

1. The American Diabetes Association has suggested that the adjective 'diabetic' be not used with patients. Hence, write these as 'diabetes patients' or 'patients with diabetes'.

2. Rewrite references 27 and 35 properly.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: Yes

**********

2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: Yes

**********

3. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: No

Reviewer #2: No

**********

4. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: No

**********

5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: • General comments

This paper addresses a relevant topic, that of diabetes, and in a relevant population, that of refugees. It is well written and the methods appear rigorous enough, from what I can judge, since I am not an economist. The results are probably useful for international NGOs providing medical care to refugees. However, one can question its usefulness for other stakeholders; the authors will want to expand on this in their discussion and perhaps also in their conclusion.

• Specific comments

1. In the title, is it possible to use “hospital serving refugees in Kenya” instead of giving the name of the hospital?

2. Abstract: RBS should be defined.

3. Why refer to “holistic” management when there is no consideration of prevention or follow-up in the paper?

4. It would be useful for the readership to have an idea of the estimated prevalence of diabetes in the refugee camp.

5. In Africa, diabetes is usually diagnosed once there are already complications unless active screening takes place. Of the patients treated in 2017, how many did NOT have complications? Also, is information on the time since diagnosis available?

6. This study took place before the pandemic: this is perhaps an important point to mention.

7. If I understood correctly, it is assumed that patients with type 2 diabetes are solely on hypoglycemic drugs, not on insulin? Please explain.

8. The content of the interviews should be briefly described.

9. It would be important to know why the health posts were not included in the study and to include this as a limitation of the study.

10. Do the patients pay for consultations, tests or drugs? If everything is free for the refugees, then the findings are not applicable where patients have to pay out of their pocket, which is the case in most African countries.

11. Is it possible to explain the term “gross-costings”, and “top-down” and “bottom-up” micro-costing, for non-economists?

12. This costing method may be of value for other NCDs; the authors will want to say a word on this.

Reviewer #2: I read your paper with great interest. The topic is novel. It is better to improve the English language of the paper. There are several mistakes. Moreover, it is better to use clear language with small sentences.

Studied----study

Which---the which

As the evidence----as evidence

Which accounted----that accounted

and direct/indirect cost items --- and direct/indirect cost items are

The clinical pathway for care of uncomplicated diabetes------ The clinical pathway for the care of uncomplicated diabetes

Measurement, valuation and allocation of costs to health----- Measurement, valuation, and allocation of costs to the health

aAdapted----adapted

useful---of useful

organisational----organizational

Cost analyses contributes critically into economic evaluations.------- Cost

analyses contribute critically to economic evaluations.

Analysed----analyzed

At 2008---of 2008

İn direct costs-----indirect costs

Such---such as

World-wide----worldwide

Are the costs in your study annual or not? Please mention.

The discussion part of the paper should be improved. Please add more references. Please compare them. Please read these papers and cite them.

1. S.Ö. Keskek, S. Kırım, N. Yanmaz, N. Sahinoglu Keskek, G. Ortoglu, A. Canataroglu , "Direct medical cost of type 1 and type 2 diabetes in Turkey", International Journal of Diabetes in Developing Countries, Ekim-2013, DOI 10.1007/s13410-013-0159-6

2. Ş.Ö. Keşkek, S.Kırım, N. Yanmaz. Estimated costs of the treatment of diabetic foot ulcers in a tertiary hospital in Turkey. Pak J Med Sci 2014; 30(5): 968-971. doi: http://dx.doi.org/10.12669/pjms.305.5182

3.Gülümsek E, Keşkek ŞÖ. Direct medical cost of nephropathy in patients with type 2 diabetes. Int Urol Nephrol. 2021 Oct 18. doi: 10.1007/s11255-021-03012-

**********

6. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: Yes: Şakir Özgür Keşkek

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/. PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org. Please note that Supporting Information files do not need this step.

Revision 1

Responses to Editor's comments (marked R:)

1. The American Diabetes Association has suggested that the adjective 'diabetic' be not used with patients. Hence, write these as 'diabetes patients' or 'patients with diabetes'.

R: Thank you for this suggestion. Adjustments have been made throughout the manuscript.

2. Rewrite references 27 and 35 properly.

R: Thank you for flagging this. References 27 and 35 have been amended accordingly. In addition, all references have been reviewed once more and are now in accordance with PLOS One requirements.

Journal Requirements

1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming.

R: The revised manuscript meets PLOS ONE's style requirements.

2. Please provide additional details regarding participant consent.

R: Additional details are now included in the ethics statement within the Methods section.

3. Please provide a complete cop of PLOS' questionnaire on inclusivity in global research in your revised manuscript.

R: The completed PLOS questionnaire is included with this resubmission.

4. Regarding data.

R: All data is provided within the manuscript’s tables. We have also included supplementary tables to facilitate replicability and repeatability of the study methodology.

5. Please include your full ethics statement in the 'Methods' section of your manuscript.

R: The full ethics statement has now been moved to the 'Methods' section. This includes the full names of the ethics review committees who approved the study and the approval numbers. As mentioned in the manuscript, informed consent was obtained from all health care providers interviewed as part of the data collection process.

6. Reference list

R: The reference list has been reviewed and we confirm that this is complete and correct.

Responses to Reviewers comments

Reviewer #1: • General comments

This paper addresses a relevant topic, that of diabetes, and in a relevant population, that of refugees. It is well written and the methods appear rigorous enough, from what I can judge, since I am not an economist. The results are probably useful for international NGOs providing medical care to refugees. However, one can question its usefulness for other stakeholders; the authors will want to expand on this in their discussion and perhaps also in their conclusion.

R: Thank you for your comments. We have expanded on the usefulness of these findings in the discussion section and conclusion.

• Specific comments

1. In the title, is it possible to use “hospital serving refugees in Kenya” instead of giving the name of the hospital?

R: Thank you. Title adjustment made to “hospital serving refugees in Kenya”.

2. Abstract: RBS should be defined.

R: Random blood sugar (RBS) tests are now defined in the abstract.

3. Why refer to “holistic” management when there is no consideration of prevention or follow-up in the paper?

R: Our study methodology has taken into account the cost of follow-up for patients with diabetes. However, given the humanitarian context and its associated data collection challenges, we were unable to differentiate among newly diagnosed patients and those who came for a re-visit. Nevertheless, the treatment protocols followed within the facility were similar for both patients segments. However, we do acknowledge that prevention costs are not included. Holistic management in our analysis therefore refers to the care that patients receive from the point of testing, and subsequent care when the patients return to the facility for a revisit. We have included this in the revised manuscript.

4. It would be useful for the readership to have an idea of the estimated prevalence of diabetes in the refugee camp.

R: It is estimated that the Hagadera refugee camp has nearly 1,000 patients with diabetes under follow-up in 2018. In 2017, diabetes patients represented 11.76% of the OPD consultations. However, no previous diabetes prevalence studies have been conducted in the camp. The manuscript has been updated.

5. In Africa, diabetes is usually diagnosed once there are already complications unless active screening takes place. Of the patients treated in 2017, how many did NOT have complications? Also, is information on the time since diagnosis available?

R: This observation is correct and is likely the case in the study setting. However, diabetes complications were not captured as they were out of the scope of this paper. In addition, the study has focused on refugees; excluding the general population in Kenya.

6. This study took place before the pandemic: this is perhaps an important point to mention.

R: Thank you. This has now been included in the paper in the limitations section.

7. If I understood correctly, it is assumed that patients with type 2 diabetes are solely on hypoglycemic drugs, not on insulin? Please explain.

R: Unfortunately, access to insulin is very challenging within humanitarian settings (and the general population in Kenya) and it is often reserved for those with type 1 diabetes.

8. The content of the interviews should be briefly described.

R: Interviews were conducted to determine inputs required for diabetes care, and to estimate staff time allocation. The manuscript is updated.

9. It would be important to know why the health posts were not included in the study and to include this as a limitation of the study.

R: Thank you for the suggestion to include this as a limitation of our study. The incurred costs at the health posts were out of scope of the study as these services are provided by community health workers (CHWs) who also provide other services including maternal and child health, infectious diseases etc. Consequently, it was difficult to collect data specific to diabetes follow ups at the community level. We mention this in the manuscript too.

10. Do the patients pay for consultations, tests or drugs? If everything is free for the refugees, then the findings are not applicable where patients have to pay out of their pocket, which is the case in most African countries.

R: Thank you for your question. The study has followed a provider perspective approach when calculating the estimated costs. Hence, out of pocket (OOP) and other societal costs were outside the scope of the study. Such costs are likely significant in a country like Kenya where OOP health expenditure is estimated at more than one-fifth (as stated in the limitations section), however, it is important to note that there was no expenses for patients to receive services at the hospital. The analysis from a provider perspective are therefore very important for program implementers, including payers such as the government of Kenya in their plans to extend universal health care coverage to its populace.

11. Is it possible to explain the term “gross-costings”, and “top-down” and “bottom-up” micro-costing, for non-economists?

R: Noted. This has now been included in the manuscript.

12. This costing method may be of value for other NCDs; the authors will want to say a word on this.

R: Thank you for raising this important point. We have included a statement within the conclusion demonstrating that similar costing methods would be useful for other NCDs, with tools adapted according to treatment pathways for each NCD.

Reviewer #2: I read your paper with great interest. The topic is novel. It is better to improve the English language of the paper. There are several mistakes. Moreover, it is better to use clear language with small sentences.

Studied----study

Which---the which

As the evidence----as evidence

Which accounted----that accounted

and direct/indirect cost items --- and direct/indirect cost items are

The clinical pathway for care of uncomplicated diabetes------ The clinical pathway for the care of uncomplicated diabetes

Measurement, valuation and allocation of costs to health----- Measurement, valuation, and allocation of costs to the health

aAdapted----adapted

useful---of useful

organisational----organizational

Cost analyses contributes critically into economic evaluations.------- Cost

analyses contribute critically to economic evaluations.

Analysed----analyzed

At 2008---of 2008

İn direct costs-----indirect costs

Such---such as

World-wide----worldwide

R: Thank you very much for your feedback. We have revised the manuscript accordingly and maintained consistency in the use of UK English.

Are the costs in your study annual or not? Please mention.

R: Costs are reported as unit costs. Kindly refer to table 3 for the estimated unit costs in USD. Additional details were also added in table 1 for the annualization factors that were used where applicable.

The discussion part of the paper should be improved. Please add more references. Please compare them. Please read these papers and cite them.

1. S.Ö. Keskek, S. Kırım, N. Yanmaz, N. Sahinoglu Keskek, G. Ortoglu, A. Canataroglu , "Direct medical cost of type 1 and type 2 diabetes in Turkey", International Journal of Diabetes in Developing Countries, Ekim-2013, DOI 10.1007/s13410-013-0159-6

2. Ş.Ö. Keşkek, S.Kırım, N. Yanmaz. Estimated costs of the treatment of diabetic foot ulcers in a tertiary hospital in Turkey. Pak J Med Sci 2014; 30(5): 968-971. doi: http://dx.doi.org/10.12669/pjms.305.5182

3.Gülümsek E, Keşkek ŞÖ. Direct medical cost of nephropathy in patients with type 2 diabetes. Int Urol Nephrol. 2021 Oct 18. doi: 10.1007/s11255-021-03012-

R: Thank you very much for sharing these references. While they are not specifically focussed on a humanitarian setting as our analysis is, we have read and included findings and conclusions from them in the discussion section of the revised manuscript.

Attachments
Attachment
Submitted filename: Response to Reviewers.docx
Decision Letter - Binaya Sapkota, Editor

PONE-D-22-03317R1Estimating treatment costs for uncomplicated diabetes at a hospital serving refugees in KenyaPLOS ONE

Dear Dr. Kanya,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

Please submit your revised manuscript by Oct 09 2022 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

Please include the following items when submitting your revised manuscript:

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.
  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.
  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.
If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols. Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols.

We look forward to receiving your revised manuscript.

Kind regards,

Binaya Sapkota, PharmD

Academic Editor

PLOS ONE

Journal Requirements:

Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

Additional Editor Comments:

Thank you very much for addressing many of the concerns of the reviewers and the editor in the revision version. Still, there are few concerns raised by the reviewer to be addressed. Hence, I request the authors to address those remaining concerns and again send the revised manuscript.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation.

Reviewer #1: All comments have been addressed

**********

2. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

**********

3. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

**********

4. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: Our comments were addressed in the rvised version. However, I still find the explanations for the types of costing unclear for non-economists. I also think that some more discussion should be devoted to out-of-pocket expenditures although this is not the approach of this study. We are surprised that there was no reference to the following paper: Alouki K, et al. Simple calculator to estimate the medical cost of diabetes in sub-Saharan Africa. World J Diabetes 2015; 6: 1312-22.

**********

7. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

**********

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/. PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org. Please note that Supporting Information files do not need this step.

Revision 2

Dear reviewers,

We thank you very much for your time and insights towards improving our manuscript. Adjustments were made to further clarify the methodology for non-economists. Thank you for pointing us to the above paper by Alouki et al (2015). We have included this in the discussion section as suggested.

Kind regards,

Dr. Kanya

for Authors

Attachments
Attachment
Submitted filename: Responses to Reviewers.docx
Decision Letter - Binaya Sapkota, Editor

Estimating treatment costs for uncomplicated diabetes at a hospital serving refugees in Kenya

PONE-D-22-03317R2

Dear Dr. Kanya,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

An invoice for payment will follow shortly after the formal acceptance. To ensure an efficient process, please log into Editorial Manager at http://www.editorialmanager.com/pone/, click the 'Update My Information' link at the top of the page, and double check that your user information is up-to-date. If you have any billing related questions, please contact our Author Billing department directly at authorbilling@plos.org.

If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org.

Kind regards,

Binaya Sapkota, PharmD

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Thank you very much for submitting your valuable research to PLOS ONE. We are pleased to accept your paper based on your satisfactory response to the reviewers' comments and the editorial discretion.

Reviewers' comments:

Formally Accepted
Acceptance Letter - Binaya Sapkota, Editor

PONE-D-22-03317R2

Estimating treatment costs for uncomplicated diabetes at a hospital serving refugees in Kenya

Dear Dr. Kanya:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

If we can help with anything else, please email us at plosone@plos.org.

Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. Binaya Sapkota

Academic Editor

PLOS ONE

Open letter on the publication of peer review reports

PLOS recognizes the benefits of transparency in the peer review process. Therefore, we enable the publication of all of the content of peer review and author responses alongside final, published articles. Reviewers remain anonymous, unless they choose to reveal their names.

We encourage other journals to join us in this initiative. We hope that our action inspires the community, including researchers, research funders, and research institutions, to recognize the benefits of published peer review reports for all parts of the research system.

Learn more at ASAPbio .