Peer Review History
Original SubmissionNovember 11, 2021 |
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PONE-D-21-34465Successful outcomes with low–threshold intervention for cannabis use disorders in Norway - an observational studyPLOS ONE Dear Dr. Verderhus, 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 consider carefully all the reviewer´s comments about the manuscript Please submit your revised manuscript by Apr 30 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:
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Please amend your list of authors on the manuscript to ensure that each author is linked to an affiliation. Authors’ affiliations should reflect the institution where the work was done (if authors moved subsequently, you can also list the new affiliation stating “current affiliation:….” as necessary). 4. Ethics statement only appears at the end of the manuscript: Your ethics statement should only appear in the Methods section of your manuscript. If your ethics statement is written in any section besides the Methods, please move it to the Methods section and delete it from any other section. Please ensure that your ethics statement is included in your manuscript, as the ethics statement entered into the online submission form will not be published alongside your manuscript. Additional Editor Comments: Please consider carefully all the reviewer´s comments about the manuscript. [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: Partly ********** 2. Has the statistical analysis been performed appropriately and rigorously? Reviewer #1: I Don't Know ********** 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 ********** 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 ********** 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: "Successful outcomes with low–threshold intervention for cannabis use disorders in Norway - an observational study." 1. The labels “low-threshold” and “low-intensity” are used to describe the intervention. Are these appropriate given this is a 15-session, therapist-led intervention including a family session, and with an emphasis on achieving abstinence from cannabis use? 2. The intervention is described as “a secondary prevention intervention” – however the participants already perceived their cannabis use as problematic in this study (and had SDS scores ≥4). Should this still be described as a preventative intervention in this case? Methods: 3. Phase 1 of the intervention is described as preparing for physical withdrawal, and as a “medical” phase. Did this include any type of pharmacological intervention? If so, details of these would be needed. Results: 4. The change in cannabis use from T0-T2 is unclear, in the main text: “the mean reduction was −12.6 days (95% CI = −16.4 to 8.8, p = 0.001)”. These confidence intervals would indicate a non-significant change. Is this an error? 5. I can’t see any data presented on how many participants were abstinent at T0. Given it is mentioned that: “They were advised to reduce or quit their cannabis use before starting the program, or during the first part of the program.” How many were abstinent at the start of treatment? Why wasn’t baseline cannabis use adjusted for in the multivariable regression analysis? 6. The authors describe conducting “an attrition analysis” – which analysis was conducted? 7. The results should follow the outline given on the clinical trial registration. ‘Other drug use’ is presented with the primary outcome in the manuscript which is not appropriate as this was not listed as a primary or secondary outcome on the registration. Data on alcohol/other drug use could be moved to a section labelled “exploratory analysis”. 8. In Table 3 – what is the reason for writing “Ns” instead of the p-values that were >.05? These tables would also be improved by the addition of 95% confidence intervals. Table 3 needs to define what c refers to. 9. The text states “At the 3-month follow-up (T2), 59 respondents (58%) were contacted...”; If I am reading this correctly, why were nearly half of participants not contacted for this follow-up? Or does this number refer to the number of individuals that completed the follow-up? 10. What are “classical cannabis products” used by participants? The background suggests that resin may be partly responsible for increased admissions to treatment, do you have data on herbal/resin use in this sample? 11. When describing the sample characteristics, percentages or count would be better than “one in four”, “three of four” etc. Discussion: 12. A brief sentence describing the intervention prior to describe the main findings about retention and cannabis use would improve readability of the discussion. 13. The reference provided to support not employing a waiting-list control (Sinadinovic, 2020) does not seem to noticeably support this suggestion. This point needs to be expanded, as this is a key criticism of the current investigation. 14. Further clarity and discussion are needed of the implications related to: “These professionals included only a proportion of those that were enrolled in the CCP in participating municipalities. We lacked information about the pre-study procedures; e.g., whether the professionals included all their eligible individuals in the study.” ********** 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 [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". 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Revision 1 |
Successful outcomes with low–threshold intervention for cannabis use disorders in Norway - an observational study PONE-D-21-34465R1 Dear Dr. Vederhus, 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, José J. López-Goñi Academic Editor PLOS ONE Additional Editor Comments (optional): 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: Thank you for addressing my comments and for sharing the data file. I would recommend sharing the data file as a CSV rather than an SPSS file as that will make it much more accessible. ********** 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 ********** |
Formally Accepted |
PONE-D-21-34465R1 Successful outcomes with low–threshold intervention for cannabis use disorders in Norway - an observational study Dear Dr. Vederhus: 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. José J. López-Goñi Academic Editor PLOS ONE |
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