Table 1. Population at risk and cancer cases based on ethnic groups of Sikkim (2003–2008).

Sikkim	Population at risk				Cases
ethnicity	Male	%	Female	%	Male	%	Female	%
Bhutia	255 538	12.8	231 495	13.3	305	26.6	238	22.4
Rai	264 469	13.3	240 811	13.8	139	12.1	162	15.2
Others	147 239 4	73.9	126 716 9	72.8	704	61.3	663	62.4
All Sikkim	199 240 1	100	173 947 5	100	1148	100	1063	100