The association of milk products with rheumatoid arthritis: A cross-sectional study from National Health and Nutrition Examination Survey (NHANES)
Main finding · Self-reported RA prevalenceResult — go to the resultOdds ratio 0.68 95% CI 0.53–0.86Authors' conclusion
This study suggested a negative association between consumption of milk products and RA among US population.
Study context
- Population
- United States (US) adults aged 20 years or older from NHANES; milk product consumption by personal interview, rheumatoid arthritis (RA) status self-reported
- Participants
- 12,813 adults
- Exposure
- Milk products intake once a day or more vs less frequent intake
- Outcome
- Self-reported RA prevalence
Methodological detailsweighted logistic regression
- Weighted logistic regression
Main finding
As reported in the abstract
Odds ratio
0.68
95% CI 0.53–0.86
P < 0.001
Once a day or more
OR 0.68 (95% CI 0.53–0.86); P < 0.001
- Linear trend between consumption of milk products and prevalence of RA
- P < 0.01
Observational data: associations, not effects.
Further findings
Subgroup analysis
- Protective effects more pronounced in several groups (e.g., Mexican Americans, highly educated and drinking individuals); no interaction effect of stratification variables and frequency of milk products intake with RA
Sensitivity analysis after imputing missing data
- Same association
Original publication
The association of milk products with rheumatoid arthritis: A cross-sectional study from NHANES. Joint Bone Spine. Published 27 September 2023. doi:10.
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