Table 2. Laryngeal cancer incidence in China, 2011.

Areas	Sex	Cases	Crude incidence (1/105)	Ratio (%)	ASIRC (1/105)	ASIRW (1/105)	Cumulative rate 0-74 (%)
All	Both	20,875	1.55	0.62	1.13	1.14	0.14
	Male	18,583	2.69	0.97	2.03	2.06	0.26
	Female	2,292	0.35	0.16	0.24	0.24	0.03
Urban	Both	12,105	1.75	0.67	1.25	1.26	0.16
	Male	11,036	3.13	1.11	2.32	2.34	0.3
	Female	1,069	0.32	0.13	0.21	0.2	0.02
Rural	Both	8,770	1.34	0.56	0.99	1	0.13
	Male	7,547	2.23	0.82	1.72	1.74	0.22
	Female	1,223	0.38	0.19	0.28	0.28	0.04

ASIRC, age-standardized incidence rate (China population, 2000); ASIRW, age-standardized incidence rate (Segi’s population).