Peer Review History

Original SubmissionApril 20, 2021
Decision Letter - Corstiaan den Uil, Editor

PONE-D-21-12922

The Impact of the COVID-19 Pandemic on Waiting Times for Elective Surgery Patients: A Multicenter Study

PLOS ONE

Dear Dr. Uimonen,

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Corstiaan den Uil

Academic Editor

PLOS ONE

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Reviewers' comments:

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Comments to the Author

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Reviewer #1: Yes

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

Reviewer #1: Yes

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Reviewer #1: Yes

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Reviewer #1: Yes

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Reviewer #1: The findings reported in this extensive data base/registry analysis are logical and have in a similar way been presented elsewhere (and in other societies and health care systems); thus findings are not revolutionary or new, but still important to portrait the reaction of the system in Finland.

The manuscript would certainly benefit from inclusion of cardiovascular or at least cardiac surgeries and interventions which may have had a bigger impact onto morbidity/mortality than operations to the gastrointestinal or urogenital system.

Another peculiar observation is obviously a "summer brake phenomenon" clearly seen regardless of the pandemic in all the years analysed. This phenomenon should also be discussed as it deserves comments and could raise speculations.

Finally, it is a pity that the observations of the impact of Covid-19 in Finland could not be compared directly with mortality figures (that should by now be available at the National Office of Statistics).

Again, the information will probably not be really new but important for the country.

In their conclusion the authors should be more daring and suggest how to better react to a lockdown in a future pandemic, and how resources and capacity in the health care system should be allocated better,

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Reviewer #1: Yes: Christoph A. Nienaber

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Revision 1

Reviewer #1:

The findings reported in this extensive data base/registry analysis are logical and have in a similar way been presented elsewhere (and in other societies and health care systems); thus findings are not revolutionary or new, but still important to portrait the reaction of the system in Finland.

The authors’ response: Thank you.

The manuscript would certainly benefit from inclusion of cardiovascular or at least cardiac surgeries and interventions which may have had a bigger impact onto morbidity/mortality than operations to the gastrointestinal or urogenital system.

The authors’ response: Thank you for this suggestion. We expanded the analysis to cover the surgeries performed due to cardiovascular diseases. Please see the corresponding revisions in Methods (line 70), Results (lines 92-96) and Discussion (lines 124-126) sections as well as in Figure 3.

Another peculiar observation is obviously a "summer brake phenomenon" clearly seen regardless of the pandemic in all the years analysed. This phenomenon should also be discussed as it deserves comments and could raise speculations.

The authors’ response: Thank you. Discussion on the summer brake phenomenon has been added (lines 114-122).

Finally, it is a pity that the observations of the impact of Covid-19 in Finland could not be compared directly with mortality figures (that should by now be available at the National Office of Statistics).

Again, the information will probably not be really new but important for the country.

The authors’ response: Thank you for this suggestion. We added discussion on the mortality rates in Finland during the pandemic (lines 136-142) and Figure 4. However, since Statistics Finland database does not provide monthly mortality rates for the catchment areas of the study hospitals, we had to use monthly mortality data for the entire country. Nonetheless, we considered the data obtained from the study hospitals representative of the Finnish population. Therefore, the data of the study hospitals may be considered comparable to the national mortality rates.

In their conclusion the authors should be more daring and suggest how to better react to a lockdown in a future pandemic, and how resources and capacity in the health care system should be allocated better.

The authors’ response: Suggestions for preparation for future pandemics have been added to Discussion section (lines 132-152).

Decision Letter - Corstiaan den Uil, Editor

The Impact of the COVID-19 Pandemic on Waiting Times for Elective Surgery Patients: A Multicenter Study

PONE-D-21-12922R1

Dear Dr. Uimonen,

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,

Corstiaan den Uil

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Formally Accepted
Acceptance Letter - Corstiaan den Uil, Editor

PONE-D-21-12922R1

The Impact of the COVID-19 Pandemic on Waiting Times for Elective Surgery Patients: A Multicenter Study

Dear Dr. Uimonen:

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.

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

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. Corstiaan den Uil

Academic Editor

PLOS ONE

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