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Table 3 Prevalence of selected birth defects in 1993–1994 and 2009–2010, ranking of decreased prevalence

From: Increased prevalence of some birth defects in Korea, 2009–2010

Order

Birth Defects

Prevalence per 10,000 live births (95 % CI)

1993–1994

2009–2010

1

Anencephaly

3.4 (3.1–3.8)

0.05 (0.03–0.3)

2

Pulmonary valve atresia/ stenosis

23.1 (22.2–24.0)

8.2 (7.4–9.2)

3

Tetralogy of fallot

7.3 (6.8–7.8)

4.1 (3.5–4.8)

4

Translocation of great vessels

2.9 (2.6–3.2)

1.8 (1.4–2.2)

5

Atresia of bile ducts

2.9 (2.6–3.2)

2.1 (1.7–2.6)

6

Encephalocele

0.9 (0.8–1.1)

0.7 (0.5–1.0)

7

Cleft lip with or without cleft palate

10.2 (9.6–10.8)

8.2 (7.3–9.1)