Table 2.

Association between WWI and depression patients with diabetes

Exposure	Model 1 OR (95% CI)	Model 2 OR (95% CI)	Model 3 OR (95% CI)
WWI (continuous)	1.67 (1.45, 1.93)	1.55 (1.32, 1.82)	1.38 (1.17, 1.63)
WWI (categorized)
T1 (8.91–11.30)	1.0(Reference)	1.0(Reference)	1.0 (Reference)
T2 (11.31–11.91)	1.57 (1.19, 2.07)	1.54 (1.16, 2.05)	1.42 (1.06, 1.91)
T3 (11.91–14.37)	2.38 (1.83, 3.10)	2.11 (1.59, 2.81)	1.75 (1.30, 2.35)
P for trend	< 0.0001	< 0.0001	0.0002

WWI was converted from a continuous variable to a categorical variable (tertiles). T, tertiles. OR, Odds ratio. 95% CI, 95% confidence interval

Model 1 was unadjusted and did not control for any covariates

Model 2 included adjustments for age, gender, and race

Model 3 was fully adjusted, incorporating all potential confounders by further accounting for marital status, PIR, education level, alcohol use, smoking, hypertension, physical activity, energy, protein, total fat, carbohydrates, dietary fiber, calcium, total folic acid, and vitamin B12, in addition to the variables in Model 2