Table 8.

Cortical Opacity Progression* and Surgery Rates by Ethnicity, Age, and Sex

	African-Americans						Caucasians
	Males			Females			Males			Females
Age Group, y	Eyes at Risk	Incidence % (n)	Surgery % (n)	Eyes at Risk	Incidence % (n)	Surgery % (n)	Eyes at Risk	Incidence % (n)	Surgery % (n)	Eyes at Risk	Incidence % (n)	Surgery % (n)
65–69	39	43.6 (17)	5.1 (2)	71	33.8 (24)	9.9 (7)	38	13.2 (5)	7.9 (3)	47	38.3 (18)	6.4 (3)
70–74	51	27.5 (14)	3.9 (2)	101	37.6 (38)	5.9 (6)	47	25.5 (12)	6.4 (3)	80	27.5 (22)	10.0 (8)
75–79	45	46.7 (21)	2.2 (1)	61	42.6 (26)	0.0 (0)	49	14.3 (7)	14.3 (7)	87	20.7 (18)	12.6 (11)
≥80	15	33.3 (5)	13.3 (2)	42	42.9 (18)	4.8 (2)	24	20.8 (5)	16.7 (4)	62	19.4 (12)	16.1 (10)
Total	150	38.0 (57)	4.7 (7)	275	38.6 (106)	5.5 (15)	158	18.3 (29)	10.8 (17)	276	25.4 (70)	11.6 (32)
Overall by ethnicity	Eyes at risk 425		Progression % (n) 38.4 (163)		Surgery % (n) 5.2 (22)		Eyes at risk 434		Progression % (n) 22.8 (99)		Surgery % (n) 11.3 (49)

^*Cortical progression: An increase of at least 2/16 units in eyes between 2 and 14 at baseline.