Table 3. Sensitivity analysis for the effects of baseline comorbid MDD.

	Bivariate*n (k)=360 (9)			Parsimonious*n (k)=321 (8)			Multivariate* excluding populationn (k)=359 (9)			Multivariate* excluding ageN (k)=322 (8)
	RR	95% CI	P value	RR	95% CI	P value	RR	95% CI	P value	RR	95% CI	P value
Comorbid MDD†	1.91	1.14 to 3.21	0.015*	1.55	0.91 to 2.65	0.110	1.77	1.05 to 2.99	0.032§	1.70	0.99 to 2.90	0.052
Age‡	–	–	–	0.97	0.96 to 0.99	0.004§	0.98	0.96 to 0.99	0.006§	–	–	–
Population	–	–	–	1.87	1.24 to 2.84	0.003§	–	–	–	1.73	1.15 to 2.62	0.009§

^*Models were multilevel.

^†Major Ddepressive Ddisorder;.

^‡cContinuous.

^§p < 0.05

RRrate ratio