Peer Review History
Original SubmissionApril 27, 2023 |
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PONE-D-23-11981The association between shift work exposure and cognitive impairment among middle-aged and older adults: results from the Canadian Longitudinal Study on Aging (CLSA)PLOS ONE Dear Dr. Khan, 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. Both reviewers recommend a more comprehensive presentation of the theoretical basis and mechanisms linking shift work and cognitive impairment and of the negative health consequences associated with shift work. I share this view and find that the influence of circadian rhythm desynchronization on shift work, in particular, is too brief. In general, you give a lot of references in the introduction, but they are not very precise. Please revise this in the introduction as well. Also make sure that the bibliography is correct (e.g. Alonzo et al. (55) is not correct). From my point of view, Table 4 represents the most important results. Therefore, in addition to the reviewer requirements, I would like you to present these results in more detail. Also, the estimators for the confounders in the multiple models should be presented. This will allow the reader to see whether shift work or confounders have a stronger impact on cognitive function. Please submit your revised manuscript by Jul 30 2023 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:
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Kind regards, Swaantje Wiarda Casjens 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 2. We noticed you have some minor occurrence of overlapping text with the following previous publication(s), which needs to be addressed: - 10.1097/GME.0000000000001981 In your revision ensure you cite all your sources (including your own works), and quote or rephrase any duplicated text outside the methods section. Further consideration is dependent on these concerns being addressed. [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: Yes 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: Yes ********** 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: This is a very interesting and succinct secondary analysis exploring the association between shift work and cognitive impairment using data from the CLSA. Please see the attached document with my comments. Reviewer #2: Comments to the authors The manuscript entitled “The association between shift work exposure and cognitive impairment among middle aged and older adults: results from the Canadian Longitudinal Study on Aging (CLSA)” investigated the possible correlation between shift work exposure and cognitive impairment in a large sample of Canadian population. This is a particularly interesting and also topical issue from the point of view of both occupational medicine and public health. Indeed, recently several studies suggested that sleep disturbance is predictive of cognitive decline in older people and such problems should be identified and treated early to prevent a deterioration of cognitive functions. On the other hand, shift workers, especially those who carry out night work, experience an average reduction of sleep of about two hour and working atypical shifts, outside the normal daylight hours (7/8 am–5/6 pm), which can encompass early-morning, afternoon, evening or night shifts might lead to the shift work sleep disorder that is a condition characterized by trouble sleeping, excessive sleepiness and fatigue. Therefore, although an increasing number of studies over the last few years have suggested that shift work (particularly that including working at night) and in some cases also long working hour are able to cause important modifications of cognitive functions, several issues, such as which cognitive domains are most affected and to what extent, the identification of pathophysiological mechanisms underlying the observed effects, the assessment of a potential dose-response relationship, the possibility of functional recovery after leaving shift work and the acknowledgement of the impact correlated to chronic exposure, still need to be clarified. In this regard, and in my opinion, the findings provided by this study are a useful contribution to deepening knowledge on this topic and improving management strategies for workers exposed to shift or night work. The study is generally well-designed but the authors should only address the followings minor comments and/or suggestions in order to improve the manuscript: Abstract The methods section generically refers to cognitive tests. I think it would be appropriate to make explicit which tests were used. Introduction I found the introduction very comprehensive and well structured. The authors describe the main characteristics of shift works, report literature data indicating potential adverse effects resulting from exposure to this occupational risk factor and their supposed mechanisms of action so that the reader can easily understand the rationale and aim of the study. Therefore I have only few and minor comments and suggestions: • Pag. 3, lines 55-56: “A variety of negative health outcomes have been associated with SW, particularly night and rotating SW”. I think readers would be interested in a short, concise but comprehensive list of what adverse effects we are talking about; • Pag 3, lines 56-57: “The existing body of literature supports the notion that SW plays a critical role in cognitive functions.”. In my opinion this sentence should be reformulated for clarity… maybe the authors meant “… in cognitive function impairment”; Discussion The authors, referring to the limits of their study, correctly stated that “…type and duration of job were not examined and the association between SW and cognitive functions may not be constant across all types and duration of job (66,67). Third, some SW related information were not included, as they were not recorded in the CLSA questionnaire, such as the type and direction of rotating shifts, number of consecutive night shifts worked, and the number of days off between shifts”. I suggest to include in the “Discussion” section a brief paragraph in which the authors discuss how the aforementioned SW characteristics could affect the cognitive functions of exposed workers. In addition, to provide a more comprehensive overview, it might be useful to add a few sentences about what other occupational risk factors (besides shift work) might have adverse effects on the cognitive functions of exposed workers (psychosocial risk factors? heavy metals? solvents? other?) Minor Revisions Page 9, Table 2, last column heading: Please correct “impairment”; Page 13, line 197: “…to be exposed to;”. Please delete the semicolon; Page 13, line 207: “…who reported;”. Please delete the semicolon; ********** 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: 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. 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Revision 1 |
The association between shift work exposure and cognitive impairment among middle-aged and older adults: results from the Canadian Longitudinal Study on Aging (CLSA) PONE-D-23-11981R1 Dear Dr. Khan, 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, Mario Ulises Pérez-Zepeda, M.D., Ph.D. Academic Editor PLOS ONE Additional Editor Comments (optional): Both reviewers state that their previous concerns were satisfactory, therefore I am happy to accept this work. 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 Reviewer #2: 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 Reviewer #2: Yes ********** 3. Has the statistical analysis been performed appropriately and rigorously? Reviewer #1: Yes Reviewer #2: 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 Reviewer #2: 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 Reviewer #2: 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: The authors have satisfactorily addressed all my comments and the manuscript is suitable for publication. Reviewer #2: The authors responded satisfactorily to all comments made in the previous review round. The revised version of the manuscript has improved and, in my opinion, can be published in its current form. ********** 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 Reviewer #2: No ********** |
Formally Accepted |
PONE-D-23-11981R1 The association between shift work exposure and cognitive impairment among middle-aged and older adults: results from the Canadian Longitudinal Study on Aging (CLSA) Dear Dr. Khan: 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. Mario Ulises Pérez-Zepeda Academic Editor PLOS ONE |
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