Table 3.

Four-year Incidence of Single and Mixed Type Lens Opacities and Incidence of All Lens Opacities Stratified by age at baseline in the Los Angeles Latino Eye Study

Four-year Incidence
Age at baseline (years)		Cortical Only Opacities		Nuclear Only Opacities		PSC* Only Opacities		Mixed Type Opacities		All Lens Changes†
	N‡	n¥	% (CIo)	n	% (CI)	n	% (CI)	n	% (CI)	N	n	% (CI)
40-49	1595	29	1.8 (1.2, 2.5)	9	0.6 (0.2, 0.9)	6	0.4 (0.1, 0.7)	7	0.4 (0.1, 0.8)	1626	55	3.4 (2.5,4.3)
50-59	1219	55	4.5 (3.4, 5.7)	52	4.3 (3.1, 5.4)	5	0.4 (0.1,0.8)	18	1.5 (0.8, 2.2)	1286	153	11.9 (10.1,13.7)
60-69	540	45	8.3 (6.0, 10.7)	100	18.5 (15.2, 21.8)	4	0.7 (0.0, 1.5)	43	8.0 (5.7, 10.3)	608	219	36.0 (32.2,39.8)
70+	117	12	10.3 (4.8, 15.8)	39	33.3 (24.8, 41.9)	1	0.9 (0.0, 2.5)	20	17.1 (10.3, 23.9)	148	94	63.5 (55.8,71.2)
			P<0.001		P<0.001		P=0.25		P<0.001			P<0.001
Overall	3471	141	4.1 (3.4, 4.7)	200	5.8 (5.0, 6.5)	16	0.5 (0.2, 0.7)	88	2.5 (2.0, 3.1)	3668	521	14.2 (13.1,15.3)

^*PSC=Posterior Subcapsular

^†Incidence of all lens changes was defined by those with cortical only, nuclear only, PSC only, mixed -type, or cataract surgery (n=76) among those with no lens opacity in either eye at baseline. Mixed refers to cases where more than one type of opacity was present.

^‡N=number at risk at baseline

^¥n=number of incident cases

^oCI=95% confidence interval