Peer Review History

Original SubmissionJune 1, 2022
Decision Letter - Bernardo Lanza Queiroz, Editor

PONE-D-22-15834

Disability-adjusted life years (DALYs) based COVID-19 health impact assessment: A systematic review protocol

PLOS ONE

Dear Dr. Gebeyehu,

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.

  • add more literature about health impact assessment using DALYs
  • expand protocol limitations
  • add and revise literature, whenever possible, on quantitative analysis.
  • Please, see detailed comments by reviewers. 

Please submit your revised manuscript by Sep 18 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.

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We look forward to receiving your revised manuscript.

Kind regards,

Bernardo Lanza Queiroz, Ph.D

Academic Editor

PLOS ONE

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2. We note that this manuscript is a systematic review or meta-analysis; our author guidelines therefore require that you use PRISMA guidance to help improve reporting quality of this type of study. Please upload copies of the completed PRISMA checklist as Supporting Information with a file name “PRISMA checklist”.

3. 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 If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references.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 If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice.

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

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Does the manuscript provide a valid rationale for the proposed study, with clearly identified and justified research questions?

The research question outlined is expected to address a valid academic problem or topic and contribute to the base of knowledge in the field.

Reviewer #1: Yes

Reviewer #2: Yes

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2. Is the protocol technically sound and planned in a manner that will lead to a meaningful outcome and allow testing the stated hypotheses?

The manuscript should describe the methods in sufficient detail to prevent undisclosed flexibility in the experimental procedure or analysis pipeline, including sufficient outcome-neutral conditions (e.g. necessary controls, absence of floor or ceiling effects) to test the proposed hypotheses and a statistical power analysis where applicable. As there may be aspects of the methodology and analysis which can only be refined once the work is undertaken, authors should outline potential assumptions and explicitly describe what aspects of the proposed analyses, if any, are exploratory.

Reviewer #1: Yes

Reviewer #2: Partly

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3. Is the methodology feasible and described in sufficient detail to allow the work to be replicable?

Descriptions of methods and materials in the protocol should be reported in sufficient detail for another researcher to reproduce all experiments and analyses. The protocol should describe the appropriate controls, sample size calculations, and replication needed to ensure that the data are robust and reproducible.

Reviewer #1: Yes

Reviewer #2: Yes

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4. Have the authors described where all data underlying the findings will be made available when the study is complete?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception, at the time of publication. 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

Reviewer #2: Yes

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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

Reviewer #2: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above and, if applicable, provide comments about issues authors must address before this protocol can be accepted for publication. You may also include additional comments for the author, including concerns about research or publication ethics.

You may also provide optional suggestions and comments to authors that they might find helpful in planning their study.

(Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: I liked the protocol the way it stands. It is hard to make changes because it is a novel idea from the authors. I believe it is quite interesting

Reviewer #2: The protocol covers an interesting and really actual topic regarding the review of DALYs-based health impact publications. Although the manuscript is almost technically sounding, there is still room to be improved. First of all, the rationale section (lines 65-69) must be deepened adding more literature about the health impact assessment using DALYs. Thus, it should be useful to add some scientific evidence for each geographical macro-area to provide an overall state of the art and to better support the rationale of the study. Few examples are:

“Gianino MM et al. Burden of COVID-19: disability-adjusted life years (DALYs) across 16 European countries. European Review for Medical and Pharmacological Sciences. 2021 Sep 1;25(17):5529-41.”

“Zhao J, et al. Disease burden attributable to the first wave of COVID-19 in China and the effect of timing on the cost-effectiveness of movement restriction policies. Value Health. 2021; in press. doi: 10.1016/j.jval.2020.12.009.”

“Pifarré i Arolas H, et al. Years of life lost to COVID-19 in 81 countries. Sci Rep. 2021;11:3504. doi: 10.1038/s41598-021-83040-3”

Moreover, authors should rephrase the inclusion and exclusion criteria in the eligibility criteria subsection. In particular, the exclusion criteria are not the exact contrary of the inclusion ones. Authors could also expand their search strategy to additional scientific databases as CINAHL and EMBASE.

In addition to the search terms, it is useful to add, as a supplementary files, the whole search string, one for each database.

The present reviewer does not know if the authors already thought about the provision of a quantitative synthesis of the results (i.e., meta-analysis). It would be interesting to read the results of a meta-analysis of the publications reporting health impact assessment based on DALYs. From a technical point of view, it seems feasible given the presence of the common indicator (i.e., DALY) across the selected studies and the statistical properties that a continuous variable has. Lines 174-176 should be moved in the discussion section.

Authors should consider to expand the discussion of the protocol’s limitations.

**********

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Reviewer #1: No

Reviewer #2: No

**********

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Attachments
Attachment
Submitted filename: PONE-D-22-15834_Revision.pdf
Revision 1

Dear editor and reviewers

First and foremost, we want to acknowledge the substantial time you spent reviewing our manuscript entitled “Disability-adjusted life years (DALYs) based COVID-19 health impact assessment: A systematic review protocol”. The changes are indicated in Microsoft track changes and attached as “marked manuscript”. Revised and “unmarked manuscript” is also attached separately.

Editor’s comment: 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.

1. Add more literature about health impact assessment using DALYs: As per the comment, 10 new references are added in the revised manuscript.

2. Expand protocol limitations: The limitations are expanded based on the reviewer 2’s comment and indicated in the Microsoft track change.

3. Add and revise literature, whenever possible, on quantitative analysis: Our preference to conduct a systematic review than metanalysis is indicated in the rationale sections of the revised protocol.

4. Please, see detailed comments by reviewers: All reviewer comments are addressed as follows.

Reviewer #1:

I liked the protocol the way it stands. It is hard to make changes because it is a novel idea from the authors. I believe it is quite interesting.

Response: Dear reviewer, we want to extend our appreciation for your valuable comment. What you said above boosted our energy to continue our innovative work. Thanks once again.

Reviewer #2:

The protocol covers an interesting and really actual topic regarding the review of DALYs-based health impact publications. Although the manuscript is almost technically sounding, there is still room to be improved.

1. First of all, the rationale section (lines 65-69) must be deepened adding more literature about the health impact assessment using DALYs. Thus, it should be useful to add some scientific evidence for each geographical macro-area to provide an overall state of the art and to better support the rationale of the study.

Few examples are:

• “Gianino MM et al. Burden of COVID-19: disability-adjusted life years (DALYs) across 16 European countries. European Review for Medical and Pharmacological Sciences. 2021 Sep 1;25(17):5529-41.”

• “Zhao J, et al. Disease burden attributable to the first wave of COVID-19 in China and the effect of timing on the cost-effectiveness of movement restriction policies. Value Health. 2021; in press. doi: 10.1016/j.jval.2020.12.009.”

• “Pifarré i Arolas H, et al. Years of life lost to COVID-19 in 81 countries. Sci Rep. 2021;11:3504. doi: 10.1038/s41598-021-83040-3”

Response: Dear reviewer thanks for your constructive comment. We added 9 new references in the rationale section and 1 reference in the limitation section and all the changes are indicated in Microsoft track changes.

2. Moreover, authors should rephrase the inclusion and exclusion criteria in the eligibility criteria subsection. In particular, the exclusion criteria are not the exact contrary of the inclusion ones.

Response: Dear reviewer thanks for your comment. We accept the comment and rephrased the inclusion and exclusion criteria.

3. In addition to the search terms, it is useful to add, as a supplementary file, the whole search string, one for each database.

Response: As per the comment, the searching strategy for each database is attached as supporting file (S 2).

4. The present reviewer does not know if the authors already thought about the provision of a quantitative synthesis of the results (i.e., meta-analysis). It would be interesting to read the results of a meta-analysis of the publications reporting health impact assessment based on DALYs. From a technical point of view, it seems feasible given the presence of the common indicator (i.e., DALY) across the selected studies and the statistical properties that a continuous variable has.

Response: Dear reviewer thanks for your genuine and valuable comment. The reason why we prefer to conduct a systematic review than metanalysis is indicated in the rationale section of the revised manuscript. In short, as confirmed from pilot search, the expected publication and reporting biases of the studies makes as to choose systematic reviews than metanalysis.

5. Lines 174-176 should be moved in the discussion section.

Response: Done as per the comment.

6. Authors should consider to expand the discussion of the protocol’s limitations.

Response: Done as per the comment.

Attachments
Attachment
Submitted filename: Rebuttal Letter.docx.pdf
Decision Letter - Bernardo Lanza Queiroz, Editor

Disability-adjusted life years (DALYs) based COVID-19 health impact assessment: A systematic review protocol

PONE-D-22-15834R1

Dear Dr. Gebeyehu,

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.

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Kind regards,

Bernardo Lanza Queiroz, Ph.D

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Formally Accepted
Acceptance Letter - Bernardo Lanza Queiroz, Editor

PONE-D-22-15834R1

Disability-adjusted life years (DALYs) based COVID-19 health impact assessment: A systematic review protocol

Dear Dr. Gebeyehu:

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. Bernardo Lanza Queiroz

Academic Editor

PLOS ONE

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