Title: CLINICAL AND HEALTH CARE UTILIZATION VARIABLES CAN PREDICT 90-
DAY HOSPITAL RE-ADMISSION IN ADULTS WITH CROHN’S DISEASE FOR POINT
OF CARE RISK EVALUATION
Version: 0 Date: 12 Dec 2023
Reviewer's report:
The authors present their work on the development of a model to predict 90 day readmissions
for patients with Crohn's disease to a large hospital system in Toronto.
The strengths of the study include the authors ability to capture re-hospitalizations in Ontario.
They also have granular data regarding the patients that a claims database would not uncover.
The paper is well written and concise.
My major suggestions would be as follows:
- the model itself is not apparent.  What are the coefficients for each variable?  I believe the
cutpoint for the equation is presented but the model is not presented for the reader to do a
calculation.
- did the authors consider creating a simple model, ie: +2 points for CD hospitalization, -2 for
established GI visit, etc which would allow for an easy calculation of risk?  creating a model
which can be used on the fly can be improve the chance of seeing this in practice.
- looking at all the predictors on supplement table 1, I noted that there were not typical lab
measures of nutritional status, other than TPN use.  since WBC and HB were available were
albumin or CRP also available?
- what statistical software was used ?
minor point:
- line 210: extra word "met ONE all study".
Title: CLINICAL AND HEALTH CARE UTILIZATION VARIABLES CAN PREDICT 90-
DAY HOSPITAL RE-ADMISSION IN ADULTS WITH CROHN’S DISEASE FOR POINT
OF CARE RISK EVALUATION
Version: 0 Date: 12 Dec 2023
Reviewer's report:
The authors present their work on the development of a model to predict 90 day readmissions
for patients with Crohn's disease to a large hospital system in Toronto.
The strengths of the study include the authors ability to capture re-hospitalizations in Ontario.
They also have granular data regarding the patients that a claims database would not uncover.
The paper is well written and concise.
My major suggestions would be as follows:
- the model itself is not apparent.  What are the coefficients for each variable?  I believe the
cutpoint for the equation is presented but the model is not presented for the reader to do a
calculation.
- did the authors consider creating a simple model, ie: +2 points for CD hospitalization, -2 for
established GI visit, etc which would allow for an easy calculation of risk?  creating a model
which can be used on the fly can be improve the chance of seeing this in practice.
- looking at all the predictors on supplement table 1, I noted that there were not typical lab
measures of nutritional status, other than TPN use.  since WBC and HB were available were
albumin or CRP also available?
- what statistical software was used ?
minor point:
- line 210: extra word "met ONE all study".
Please review this paper.
user
Title: CLINICAL AND HEALTH CARE UTILIZATION VARIABLES CAN PREDICT 90-
DAY HOSPITAL RE-ADMISSION IN ADULTS WITH CROHN’S DISEASE FOR POINT
OF CARE RISK EVALUATION
Version: 0 Date: 12 Dec 2023
Reviewer's report:
The authors present their work on the development of a model to predict 90 day readmissions
for patients with Crohn's disease to a large hospital system in Toronto.
The strengths of the study include the authors ability to capture re-hospitalizations in Ontario.
They also have granular data regarding the patients that a claims database would not uncover.
The paper is well written and concise.
My major suggestions would be as follows:
- the model itself is not apparent.  What are the coefficients for each variable?  I believe the
cutpoint for the equation is presented but the model is not presented for the reader to do a
calculation.
- did the authors consider creating a simple model, ie: +2 points for CD hospitalization, -2 for
established GI visit, etc which would allow for an easy calculation of risk?  creating a model
which can be used on the fly can be improve the chance of seeing this in practice.
- looking at all the predictors on supplement table 1, I noted that there were not typical lab
measures of nutritional status, other than TPN use.  since WBC and HB were available were
albumin or CRP also available?
- what statistical software was used ?
minor point:
- line 210: extra word "met ONE all study".
assistant