Table 2.

Logistic regression analysis, stratified by ethnic group, of the relationship between depression and the presence of chronic pain

	Ethnic group
Level of adjustmenta	White OR (95 % CI)*	Asian OR (95 % CI)*	Black OR (95 % CI)*
Model 1 - no adjustment	1.65 (1.61, 1.69)	1.77 (1.48, 2.11)	2.14 (1.78, 2.58)
Model 2 - adjusted for demographic factors	1.61 (1.57, 1.66)	1.71 (1.43, 2.05)	2.12 (1.75, 2.56)
Model 3 - adjusted for demographic and lifestyle factors	1.53 (1.45, 1.57)	1.62 (1.35, 1.95)	1.99 (1.63, 2.42)
Model 4 - adjusted for demographic, lifestyle and morbidity count	1.46 (1.43, 1.51)	1.53 (1.27, 1.85)	1.86 (1.52, 2.27)

*All individual associations and the overall models were significant at p < 0.001

^aReferent group for all models is the free of chronic pain group