Table 2.

Prevalence of Amblyopia by Age, Gender, and Ethnicity

	N (Prevalence, 95% CI)	Adjusted Odds Ratio (95% CI)*
Age (yrs)
5–7 (n = 7731)	60 (0.78%, 0.56–0.99)	Reference
8–10 (n = 13 076)	95 (0.73%, 0.58–0.88)	0.98 (0.70–1.36)
11–13 (n = 12 173)	92 (0.76%, 0.59–0.92)	1.02 (0.72–1.44)
14–15 (n = 6341)	43 (0.68%, 0.50–0.86)	0.92 (0.63–1.35)
Gender
Male (n = 20 131)	146 (0.73%, 0.59–0.86)	Reference
Female (n = 19 190)	144 (0.75%, 0.62–0.88)	1.04 (0.80–1.34)
Ethnicity
Chinese (n = 11 002)	102 (0.93%, 0.71–1.14)	Reference
African (n = 4234)	12 (0.28%, 0.12–0.44)	0.30 (0.16–0.56)
Nepali (n = 4802)	17 (0.35%, 0.19–0.52)	0.38 (0.23–0.63)
Malay (n = 3250)	17 (0.52%, 0.35–0.70)	0.56 (0.37–0.85)
Indian (n = 10 770)	67 (0.62%, 0.47–0.77)	0.67 (0.48–0.94)
Hispanic (n = 5263)	75 (1.43%, 1.08–1.77)	1.54 (1.10–2.17)
All (n = 39 321)	290 (0.74%, 0.64–0.83)	——

CI = confidence interval.

^*Adjusted OR values were derived from multivariate logistic regression model that included age, sex, and ethnicity as covariates.