Table 4.

Interaction analysis of sex, residence, comorbidity, and depressive symptoms on digestive diseases

Variables	aOR (95% CI)	p-value
Male: Depression vs No	1.29 (1.13–1.46)	< 0.001
Female: Depression vs No	1.38 (1.25–1.52)	< 0.001
Interaction (extra effect in women)	1.07 (0.91–1.25)	0.400
Urban: Unimproved vs Improved	0.80 (0.66–0.96)	0.016
Rural: Unimproved vs Improved	0.89 (0.77–1.04)	0.150
Interaction (Rural vs Urban difference)	1.12 (0.88–1.42)	0.350
No comorbidity: Depressive symptoms vs Normal	1.14 (1.08–1.55)	< 0.001
With comorbidity: Depressive symptoms vs Normal	1.23 (1.08–1.41)	0.002
Interaction term (extra effect of depression in comorbidity group)	0.88 (0.75–1.03)	0.116

Models are weighted using IFLS-5 individual-level sampling weights, Ref = reference category