Peer Review History

Original SubmissionFebruary 1, 2023
Decision Letter - Andrea D’Aviero, Editor

PONE-D-23-02766Predictive role of pretreatment skeletal muscle mass index for long-term survival of bladder cancer patients: a meta-analysisPLOS ONE

Dear Dr. an,

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.

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Kind regards,

Andrea D’Aviero

Academic Editor

PLOS ONE

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Please revise the manuscript to rephrase the duplicated text, cite your sources, and provide details as to how the current manuscript advances on previous work. Please note that further consideration is dependent on the submission of a manuscript that addresses these concerns about the overlap in text with published work.

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Additional Editor Comments:

The authors present a paper about a topic of interest but major revisions are needed as suggested by reviewers.

[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

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

Reviewer #1: I Don't Know

Reviewer #2: Yes

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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: Yes

Reviewer #2: Yes

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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: Yes

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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: The authors present a paper about "Predictive role of pretreatment skeletal muscle mass index for long-term survival of

bladder cancer patients: a meta-analysis".

The topic is absolutely interesting but there are a few points that I would like the authors to address more in detail as follows:

1) Please explain the rationale to focus on pretreatment skeletal muscle mass index as indicator of long-term survival: is it just for sarcopenia? is there a specific link with bladder cancer? is it related to the treatment burden (chemotherapy? surgery? radiotherapy?)

2) Is the value of pretreatment skeletal muscle mass index prognostic or predictive?

3) Please add further information about the "non-surgery" and "mixed" treatment to table 1

Reviewer #2: The paper reports an interesting systematic review with pooled analysis on the role of the pretreatment skeletal muscle mass index in predicting survival outcomes.

The introduction well circumscribes the study in the scientific landscape, the rigorous and appropriate methodologies are clearly stated, the results are comprehensively presented and the discussion offers perspectives and limitations of the work.

The language is clear and needs no further revision.

Translated with www.DeepL.com/Translator (free version)

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Reviewer #1: No

Reviewer #2: Yes: Calogero Casà

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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

Response to journal 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

Answer 1: We have thoroughly and carefully checked and modified this manuscript according to PLOS ONE’s style requirements.

2. Thank you for submitting the above manuscript to PLOS ONE. During our internal evaluation of the manuscript, we found significant text overlap between your submission and previous work in the abstract, methods, results and discussion.

We would like to make you aware that copying extracts from previous publications, especially outside the methods section, word-for-word is unacceptable. In addition, the reproduction of text from published reports has implications for the copyright that may apply to the publications.

Please revise the manuscript to rephrase the duplicated text, cite your sources, and provide details as to how the current manuscript advances on previous work. Please note that further consideration is dependent on the submission of a manuscript that addresses these concerns about the overlap in text with published work.

We will carefully review your manuscript upon resubmission and further consideration of the manuscript is dependent on the text overlap being addressed in full. Please ensure that your revision is thorough as failure to address the concerns to our satisfaction may result in your submission not being considered further.

Answer 2: Dear editor, thanks for your comment. We have completely revised our manuscript to reduce the repetition rate, from 40% to 30%. However, the duplication is mainly in the methodological section. The similarity detection was performed by Turnitin system. If necessary, we would be happy to further reduce the repetition rate.

3. Please include captions for your Supporting Information files at the end of your manuscript, and update any in-text citations to match accordingly. Please see our Supporting Information guidelines for more information: http://journals.plos.org/plosone/s/supporting-information.

Answer 3: We have added the caption for the Supporting Information file at the end of this manuscript (page 24. line 1) and also cited this file in the text (page 4, line 7-8)

Response to reviewer 1:

Reviewer #1: The authors present a paper about "Predictive role of pretreatment skeletal muscle mass index for long-term survival of bladder cancer patients: a meta-analysis".

The topic is absolutely interesting but there are a few points that I would like the authors to address more in detail as follows:

Question 1: Please explain the rationale to focus on pretreatment skeletal muscle mass index as indicator of long-term survival: is it just for sarcopenia? is there a specific link with bladder cancer? is it related to the treatment burden (chemotherapy? surgery? radiotherapy?)

Answer 1: Dear reviewer, thanks for your valuable comment. We have carefully explained the rationale to focus on pretreatment SMI as indicator of long-term survival in the discussion part.

“SMI is the most common indicator assessing the presence or absence of sarcopenia. Initially, sarcopenia is regarded as a disease of old age characterized by degeneration of muscle tissue. However, increasing evidence indicated that a number of factors could cause sarcopenia such as the disuse, cachexia, malabsorption and also tumors [28]. Meanwhile, the occurrence and development of sarcopenia are closely related to the prognosis of cancer patients [13]. Sarcopenia includes physiological and pathological sarcopenia and the latter is caused by malignant or benign diseases. Tumor-associated sarcopenia is usually closely related to cachexia, representing as marked muscle mass loss and systemic chronic inflammation [29, 30]. The incidence rate of tumor-associated sarcopenia is about 50%-90% in untreated cancer patients [31]. Among patients with bladder cancer, the occurrence rate of sarcopenia is more than 50% [32]. Bladder cancer patients may experience malnutrition due to the impact of the tumor on the body's metabolism and absorption, or due to adverse reactions during treatment, such as loss of appetite, nausea, and vomiting. Besides, bladder cancer patients with sarcopenia may have reduced tolerance to surgical and chemotherapeutic treatments, and the disruption of the body's immune and metabolic functions may interfere with the normal response to these treatments [33]. In the past years, the association between sarcopenia and prognosis of cancer patients has been widely reported and revealed. For now, the predictive role of sarcopenia has been verified in several types of cancers such as the esophageal cancer, rectal cancer and hepatocellular carcinoma [34-37]. Therefore, our meta-analysis indirectly proved that the sarcopenia assessed by SMI before any anti-tumor treatment was a novel and reliable prognostic factor in bladder cancer.” (page 12, line 17-22; page 13, line 1-17)

Question 2: Is the value of pretreatment skeletal muscle mass index prognostic or predictive?

Answer 2: Dear reviewer, we deem that these two phrases, “predictive role of SMI for survival” and “prognostic role of SMI”, may mean the same thing. After carefully reviewing previous similar articles, we found that both of these expressions were quite common although the latter is more common. If necessary, we would like to unify to the latter type of expression, “prognostic”.

Question 3: Please add further information about the "non-surgery" and "mixed" treatment to table 1

Answer 3: We have added further information about the “non-surgery” and “mixed” treatment in table 1. (page 7-8)

Response to reviewer 2

The paper reports an interesting systematic review with pooled analysis on the role of the pretreatment skeletal muscle mass index in predicting survival outcomes.

The introduction well circumscribes the study in the scientific landscape, the rigorous and appropriate methodologies are clearly stated, the results are comprehensively presented and the discussion offers perspectives and limitations of the work.

The language is clear and needs no further revision.

Answer: Thank you very much for your recognition of the quality of this article

Attachments
Attachment
Submitted filename: answer to comments.docx
Decision Letter - Andrea D’Aviero, Editor

Predictive role of pretreatment skeletal muscle mass index for long-term survival of bladder cancer patients: a meta-analysis

PONE-D-23-02766R1

Dear Dr. an,

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,

Andrea D’Aviero

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

The authors have satisfactorily addressed all the reviewer comments.

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

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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

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

Reviewer #1: N/A

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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

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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

**********

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: I have no further comments, the authors have satisfactorily addressed all of my previous comments in the responses provided

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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

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Formally Accepted
Acceptance Letter - Andrea D’Aviero, Editor

PONE-D-23-02766R1

Predictive role of pretreatment skeletal muscle mass index for long-term survival of bladder cancer patients: a meta-analysis

Dear Dr. An:

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. Andrea D’Aviero

Academic Editor

PLOS ONE

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