Table 3.

Clustering of cardiovascular disease risk factors at the state, district, community, and household level in India^a.

Risk factor	ICC state (95% CI)	ICC district (95% CI)	ICC community (95% CI)	ICC household (95% CI)
Raised BG	0.031 (0.016–0.049)	0.034 (0.030–0.038)	0.089 (0.087–0.091)	0.142 (0.140–0.145)
Raised BP	0.023 (0.012–0.036)	0.034 (0.030–0.038)	0.065 (0.063–0.067)	0.104 (0.102–0.107)
Current smoker	0.090 (0.048–0.140)	0.063 (0.056–0.070)	0.131 (0.128–0.134)	0.095 (0.093–0.097)
Overweight	0.045 (0.023–0.072)	0.073 (0.065–0.081)	0.134 (0.132–0.137)	0.236 (0.234–0.239)
Obesity	0.029 (0.015–0.046)	0.039 (0.034–0.044)	0.099 (0.096–0.101)	0.165 (0.163–0.167)

^aSource data are provided as a Source Data file.

ICC intracluster correlation coefficient, CI confidence interval, BG blood glucose, BP blood pressure