Table 2.

The age and sex distribution of subjects detected with POAG in the two divisions of the HRGS

Age groups (yrs)	Subjects detected with POAG in urban division			Subjects detected with POAG in rural division			P (urban vs rural, total n)
	Total	Males	Females	Total	Males	Females
Total	150	80	70	101	54	47	0.03*
40-49	33	20	13	27	14	13	0.19
50-59	36	18	18	31	17	14	0.21
60-69	51	28	23	25	14	11	0.04*
>=70	30	14	16	18	9	9	0.06

*P<0.05 taken to be statistically significant, POAG: Primary open-angle glaucoma, HRGS: Hooghly river glaucoma study