TABLE 2.

Live Birth Prevalence of CHDs and CCHDs in Metropolitan Atlanta, Georgia: 1979–2005

Period	Births	Cases per 10 000 Live Births (95% CI)
		All CHDs	All CCHDs	CCHD Primary Targets
1979–1986	228 566	50.1 (47.3–53.1)	17.1 (15.5–18.9)	11.9 (10.5–13.4)
1987–1993	264 060	55.0 (52.3–57.9)	16.4 (14.9–18.0)	11.3 (10.1–12.6)
1994–1999	255 847	68.9 (65.8–72.2)	17.9 (16.4–19.7)	11.3 (10.1–12.7)
2000–2005	308 068	84.5 (81.3–87.8)	17.8 (16.4–19.3)	11.2 (10.1–12.5)
Total	1 056 541	65.9 (64.4–67.5)	17.3 (16.5–18.1)	11.4 (10.8–12.1)

CCHDs include primary targets (hypoplastic left heart syndrome, transposition of the great arteries, tricuspid atresia, truncus arteriosus, tetralogy of Fallot, total anomalous pulmonary venous return, and pulmonary atresia) and secondary targets (interrupted aortic arch, coarctation of the aorta, double outlet right ventricle, Ebstein’s anomaly, and single ventricle) of screening.