Table 3.

Incidence of nuclear, cortical and posterior subcapsular cataract by age in the Physicians’ Health Study (US male physicians, 1982–1995)

		Nuclear Cataract		Cortical Cataract		Posterior Subcapsular Cataract
Age, years	Person-years	N of Events	IR*	N of Events	IR*	N of Events	IR*
40–49	45,939	11	2.4	5	1.1	12	2.6
50–59	99,857	148	14.8	51	5.1	116	11.6
60–69	72,655	584	80.4	231	31.8	298	41.0
70–79	26,693	793	297.1	356	133.4	312	116.9
≥80	3,738	190	508.3	91	243.5	56	149.8
Total	248,882	1,726	69.4	734	29.5	794	31.9

^*Incidence rate per 10,000 person-years