Table 3.

Incidence of Early Age-Related Macular Degeneration (AMD) in Black Women in the Study of Osteoporotic Fractures.^*

Age Group	Number of Women at Risk	Incidence N (%)	95% CI of Incidence	Weighted Incidence† (95% CI)
Early AMD
Age (years)
65–69	15	3 (20.0%)	4.3–48.1	17.9 (0.0–38.8)
70–74	90	15 (16.7%)	9.6–26.0	17.4 (9.5–25.4)
75–79	38	6 (15.8%)	6.0–31.3	15.7 (4.1–27.3)
80–84	16	1 (6.3%)	0.2–30.2	6.4 (0.0–18.3)
85+	2	2 (100%)	47.8–100	100
Total	161	27 (16.7%)	11.4–23.5	17.0 (11.1–22.9)
Trend p-value‡		0.85		0.79

AMD=Age-related macular degeneration; CI=Confidence interval.

^*Only two (0.9%) of the 217 Blacks at risk had incident late AMD, and both subjects were 71 and 73 years old, respectively. Estimates for incident late AMD and age-stratified incident early AMD might be imprecise and should be interpreted with caution due to the small sample size of Blacks.

^†Estimates were weighted by attrition weights. Confidence interval was not available for the age group of 85+ years when attrition weights were used.

^‡Cochran-Armitage trend test.