Title: Long-term outcomes of refractory esophageal strictures after endoscopic submucosal
dissection of superficial esophageal neoplasms
Version: 6 Date: 09 Mar 2022
Reviewer's report:
General comments:
The manuscript was well revised, however it requires some minor revisions yet. Please provide
further attention as described below.
Minor and specific comments:
1. The authors described that “Propensity score matching was used to minimize lesion size bias,
with 1:1 matching, in the patients with steroid and dilation alone.” at line 168-169, page 7.
Did it mean that there was only one factor (lesion size) that create the propensity score? If the
authors would like to adjust for lesion size bias only, we consider the multivariate regression
analysis would be more appropriate.
Or, did the authors create the propensity score with multiple factors? If so, indicate each factor.
2. The authors described that “After adjusting influence on the two groups, the dysphasia-free
period of steroid group was 2.9 months, and the dilation alone group was 3.1 months.” at line
232-234, page 9.
Was there a significant difference the dysphasia-free period between the two? Please indicate
the P value at this point.
Title: Long-term outcomes of refractory esophageal strictures after endoscopic submucosal
dissection of superficial esophageal neoplasms
Version: 6 Date: 09 Mar 2022
Reviewer's report:
General comments:
The manuscript was well revised, however it requires some minor revisions yet. Please provide
further attention as described below.
Minor and specific comments:
1. The authors described that “Propensity score matching was used to minimize lesion size bias,
with 1:1 matching, in the patients with steroid and dilation alone.” at line 168-169, page 7.
Did it mean that there was only one factor (lesion size) that create the propensity score? If the
authors would like to adjust for lesion size bias only, we consider the multivariate regression
analysis would be more appropriate.
Or, did the authors create the propensity score with multiple factors? If so, indicate each factor.
2. The authors described that “After adjusting influence on the two groups, the dysphasia-free
period of steroid group was 2.9 months, and the dilation alone group was 3.1 months.” at line
232-234, page 9.
Was there a significant difference the dysphasia-free period between the two? Please indicate
the P value at this point.
Please review this paper.
user
Title: Long-term outcomes of refractory esophageal strictures after endoscopic submucosal
dissection of superficial esophageal neoplasms
Version: 6 Date: 09 Mar 2022
Reviewer's report:
General comments:
The manuscript was well revised, however it requires some minor revisions yet. Please provide
further attention as described below.
Minor and specific comments:
1. The authors described that “Propensity score matching was used to minimize lesion size bias,
with 1:1 matching, in the patients with steroid and dilation alone.” at line 168-169, page 7.
Did it mean that there was only one factor (lesion size) that create the propensity score? If the
authors would like to adjust for lesion size bias only, we consider the multivariate regression
analysis would be more appropriate.
Or, did the authors create the propensity score with multiple factors? If so, indicate each factor.
2. The authors described that “After adjusting influence on the two groups, the dysphasia-free
period of steroid group was 2.9 months, and the dilation alone group was 3.1 months.” at line
232-234, page 9.
Was there a significant difference the dysphasia-free period between the two? Please indicate
the P value at this point.
assistant