Table 3.

Adjusted RRs (95% CIs) according to presence of depressive symptoms in various cohort subgroups^*

	Multivariate† RR	Interaction‡ P value
BMI (kg/m2)		0.55
<25 (n§ = 34,379)	0.87 (0.40–1.89)
25–29.9 (18,628)	1.43 (0.97–2.11)
>30 (14,812)	1.24 (0.96–1.61)
Smoking		0.82
Yes (10,361)	1.28 (0.77–2.12)
No (61,817)	1.21 (0.97–1.53)
Parental history of diabetes		0.47
Yes (14,474)	1.11 (0.79–1.56)
No (57,687)	1.28 (0.99–1.66)
Alcohol consumption		0.62
Yes (47,888)	1.24 (0.92–1.67)
No (24,290)	1.23 (0.92–1.63)

^*Relative risk of developing type 2 diabetes for women with depressive symptoms compared with women without depressive symptoms;

^†calculated using stratified pooled logistic regression with same covariates as in Table 2;

^‡calculated using likelihood ratio test by subtracting −2logL for multivariate model with interaction from −2logL for multivariate model without interaction. Test has a χ² distribution with v degrees of freedom, where v = (df_{model with interaction}) − (df_{model without interaction});

^§n = number of nurses in that category at baseline.