Table 2.

Multivariate regression analysis of the association between DR and SI.

Variable	Without DR OR (95% CI)	With DR OR (95% CI)	P value
Model Ⅰ	1.00 (Ref)	1.90 (1.28–2.84)	.002
Model Ⅱ	1.00 (Ref)	1.83 (1.19–2.82)	.006
Model Ⅲ	1.00 (Ref)	1.81 (1.17–2.80)	.009
Model Ⅳ	1.00 (Ref)	1.73 (1.09–2.73)	.020
Model Ⅴ	1.00 (Ref)	1.70 (1.08–2.68)	.023

Model I: unadjusted. Model II: adjusted for Age + Gender + Race Ethnicity + Marital Status + Education Level. Model III: Model II + BMI + MET + Smoking + Alcohol. Model IV: Model III + Hypertension + Congestive heart failure + Angina pectoris + Hyperlipidemia. Model V: Model IV + Depression.

BMI = body mass index, CI = confidence interval, DR = diabetic retinopathy, MET = metabolic equivalent task, OR = odds ratio, SI = suicidal ideation.