Title: Daily Sodium Intake and Constipation in US Adult Males: An Uncommon Negative
Association Revealed by National Health and Nutrition Examination Survey Data from the
United States (2005–2010)
Version: 1 Date: 31 Oct 2024
Reviewer's report:
Please see below for my comments:
1. Section 2.3: average intake over two recalls is still not the recommended method to estimate
usual dietary intake when using NHANES data. Have you considered the NCI method? It could
help address the limitation on measurement error in the discussion section. Did you also consider
sodium intake from dietary supplements?
2. Section 2.4: is the constipation data only available prior to 2010? This data is quite old now.
3. Section 2.5: was total energy intake adjusted for in the models?
4. Section 2.6: if the interview weight was used in the analysis, then this is incorrect. The dietary
two-day sample weight should be used because it was adjusted for non-response to the dietary
component and incorporated the days of the week of recall. Please review the NHANES tutorials
on weighting.
5. Section 2.6: when producing estimates on the population level (by incorporating the complex
survey design in NHANES), standard error should be reported for continuous variables.
6. Section 3.3: please use the adjusted p-value cutoff after Bonferroni correction in the text, not
0.05
7. Section 4: the authors mentioned that the analyses were done among males only and cannot
be generalized to females – why not conduct the analysis using the entire NHANES population
then? The interview was done in both males and females so there is data for this
Title: Daily Sodium Intake and Constipation in US Adult Males: An Uncommon Negative
Association Revealed by National Health and Nutrition Examination Survey Data from the
United States (2005–2010)
Version: 1 Date: 31 Oct 2024
Reviewer's report:
Please see below for my comments:
1. Section 2.3: average intake over two recalls is still not the recommended method to estimate
usual dietary intake when using NHANES data. Have you considered the NCI method? It could
help address the limitation on measurement error in the discussion section. Did you also consider
sodium intake from dietary supplements?
2. Section 2.4: is the constipation data only available prior to 2010? This data is quite old now.
3. Section 2.5: was total energy intake adjusted for in the models?
4. Section 2.6: if the interview weight was used in the analysis, then this is incorrect. The dietary
two-day sample weight should be used because it was adjusted for non-response to the dietary
component and incorporated the days of the week of recall. Please review the NHANES tutorials
on weighting.
5. Section 2.6: when producing estimates on the population level (by incorporating the complex
survey design in NHANES), standard error should be reported for continuous variables.
6. Section 3.3: please use the adjusted p-value cutoff after Bonferroni correction in the text, not
0.05
7. Section 4: the authors mentioned that the analyses were done among males only and cannot
be generalized to females – why not conduct the analysis using the entire NHANES population
then? The interview was done in both males and females so there is data for this
Please review this paper.
user
Title: Daily Sodium Intake and Constipation in US Adult Males: An Uncommon Negative
Association Revealed by National Health and Nutrition Examination Survey Data from the
United States (2005–2010)
Version: 1 Date: 31 Oct 2024
Reviewer's report:
Please see below for my comments:
1. Section 2.3: average intake over two recalls is still not the recommended method to estimate
usual dietary intake when using NHANES data. Have you considered the NCI method? It could
help address the limitation on measurement error in the discussion section. Did you also consider
sodium intake from dietary supplements?
2. Section 2.4: is the constipation data only available prior to 2010? This data is quite old now.
3. Section 2.5: was total energy intake adjusted for in the models?
4. Section 2.6: if the interview weight was used in the analysis, then this is incorrect. The dietary
two-day sample weight should be used because it was adjusted for non-response to the dietary
component and incorporated the days of the week of recall. Please review the NHANES tutorials
on weighting.
5. Section 2.6: when producing estimates on the population level (by incorporating the complex
survey design in NHANES), standard error should be reported for continuous variables.
6. Section 3.3: please use the adjusted p-value cutoff after Bonferroni correction in the text, not
0.05
7. Section 4: the authors mentioned that the analyses were done among males only and cannot
be generalized to females – why not conduct the analysis using the entire NHANES population
then? The interview was done in both males and females so there is data for this
assistant