Table 2.

Population group as a risk factor for all-cause, cardiovascular-related and cancer-related mortality

	Crude model HR (95% CI)	Model 1 HR (95% CI)	Model 2 HR (95% CI)
All-cause mortality
Urban	1 (Reference)	1 (Reference)	1 (Reference)
Migrant	0.46 (0.19 to 1.08)	0.44 (0.18 to 1.04)	0.30 (0.12 to 0.78)
Rural	1.07 (0.43 to 2.62)	0.90 (0.36 to 2.23)	0.49 (0.16 to 1.43)
CV mortality
Urban	1 (Reference)	1 (Reference)	1 (Reference)
Migrant	0.11 (0.02 to 0.57)	0.11 (0.02 to 0.54)	0.07 (0.01 to 0.41)
Rural	0.16 (0.02 to 1.32)	0.12 (0.01 to 1.03)	0.06 (0.01 to 0.62)
Cancer mortality
Urban	1 (Reference)	1 (Reference)	1 (Reference)
Migrant	0.86 (0.17 to 4.42)	0.84 (0.16 to 4.32)	0.67 (0.11 to 4.04)
Rural	0.48 (0.04 to 5.30)	0.41 (0.04 to 4.51)	0.29 (0.02 to 4.11)
NCD (CV+cancer) mortality
Urban	1 (Reference)	1 (Reference)	1 (Reference)
Migrant	0.30 (0.11 to 0.83)	0.28 (0.10 to 0.79)	0.20 (0.07 to 0.62)
Rural	0.24 (0.05 to 1.12)	0.19 (0.04 to 0.90)	0.11 (0.02 to 0.60)

Model 1: adjusted for age and sex.

Model 2: adjusted for age, sex, education and the assets index.

Of the 928 participants evaluated at follow-up, 885 had all the variables available to be included in the multivariable model.

CV, cardiovascular; NCD, non-communicable disease.