a trend toward significancep =0.0644
The RR of <25 group in multivariable analysis was 2.61 (95% CI, 0.94–7.20) and showed a trend toward significance ( p =0.0644), but the RR of BMI ≥25 to <30 group (RR, 2.37; 95% CI, 0.80–7.06) was not statistically significant in multivariable analysis.