Table 4.

Four-Year Progression of Any type of Lens Opacity Stratified by age at baseline in the Los Angeles Latino Eye Study.

	Four-year Progression
Age at baseline (years)	Any Cortical Opacities			Any Nuclear Opacities			Any PSC* Opacities
	N†	n‡	% (CI¥)	N	n	% (CI)	N	n	% (CI)
40-49	32	3	9.4 (0.0, 19.5)	8	*	*	3	*	*
50-59	100	13	13.0 (6.4, 19.6)	21	1	4.8 (0.0, 13.9)	10	*	*
60-69	185	11	5.9 (2.5, 9.4)	92	4	4.4 (0.2, 8.5)	29	2	6.9 (0.0, 16.1)
70+	130	11	8.5 (3.7, 13.3)	121	4	3.3 (0.1, 6.5)	27	*	*
P-value (trend test)			0.33			0.95			0.78
Overall	447	38	8.5 (5.9, 11.1)	242	9	3.7 (1.3, 6.1)	69	2	2.9 (0.0, 6.9)

^*PSC=posterior subcapsular

^†N=number at risk at baseline

^‡n=number of progression cases

^¥CI=confidence interval

^*No progression cases.

Note: Progression defined as ≥ 2-step increase in score in at least one eye for a specific type of lens opacity, and exclude persons with scores ≥ C4 (for cortical opacity), ≥ N3 (for nuclear opacity), or ≥ P3 (for PSC opacity) at baseline.