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Retina

Association between Dietary Choline Intake and Diabetic Retinopathy: National Health and Nutrition Examination Survey 2005-2008

ORCID Icon, , , &
Pages 269-276 | Received 20 Apr 2021, Accepted 26 Jul 2021, Published online: 09 Aug 2021
 

ABSTRACT

Purpose

To explore whether there is an association between dietary choline intake and odds of diabetic retinopathy (DR) in the US diabetic population.

Methods

A cross-sectional study was conducted using the combined data of the National Health and Nutrition Examination Survey (NHANES) 2005–2008 of a complex, multistage, and probability-sampling design. Energy-adjusted choline intake was calculated separately for men and women using the residual method. Binary logistic regression adjusting for covariates was used to identify the variables associated with DR.

Results

We included 644 male and 628 female diabetic subjects, which were equivalent to a weighted survey sample of 9,339,124 for males and 10,109,553 for females respectively. Female DR patients consumed more choline than non-DR patients (268.6 mg/d vs 250.9 mg/d; p = .046). The estimated prevalence of DR was 17.4%, 21.9%, and 29.7% across three levels of dietary choline intake in females, respectively. In multivariable logistic-regression models, the odds ratio (OR) of DR for female patients in the highest choline intake group was 2.14 (95% confidence interval [CI], 1.38–3.31; p = .001) compared with those in the lowest intake group. This association was positive but not statistically significant in males.

Conclusion

Higher intake of dietary choline is associated with increased odds of DR in females, but not in males. Further studies are warranted to investigate the direct role of choline in DR development and determine the recommended daily intake of choline for diabetic patients weighing the pros and cons of dietary choline consumption.

Data availability statement

Datasets of NHANES are available on the website for researchers (https://www.cdc.gov/nchs/nhanes/index.htm).

Disclosure statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

Additional information

Funding

This research was funded by Jiangsu Provincial Medical Innovation Team, grant number [CXTDA2017039].

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