Types | Infants (n) | Birth defects (n) | Prevalence (%, 95%CI) |
---|---|---|---|
Congenital heart defects | 143,118 | 914 | 6.39(5.97–6.80) |
Congenital metabolic disorders | 143,118 | 614 | 4.29(3.95–4.63) |
Congenital limb defects | 143,118 | 601 | 4.20(3.86–4.54) |
 Polydactyly | 143,118 | 330 | 2.31(2.06–2.55) |
 Clubfoot | 143,118 | 125 | 0.87(0.72–1.03) |
 Syndactyly | 143,118 | 78 | 0.55(0.42–0.67) |
 Limb reduction | 143,118 | 37 | 0.26(0.18–0.36) |
 Other limb defects | 143,118 | 43 | 0.30(0.22–0.40) |
Congenital ear defects | 143,118 | 216 | 1.51(1.31–1.71) |
 Anotia/microtia | 143,118 | 59 | 0.41(0.31–0.52) |
 Other external ear defects | 143,118 | 164 | 1.15(0.97–1.32) |
Congenital kidney and urinary defects | 143,118 | 157 | 1.10(0.93–1.27) |
 Kidney defects | 143,118 | 88 | 0.61(0.49–0.74) |
 Hypospadias | 143,118 | 68 | 0.48(0.36–0.59) |
 Other kidney and urinary system defects | 143,118 | 1 | 0.01(0.00-0.04) |
Cleft lip and/or palate | 143,118 | 108 | 0.75(0.61–0.90) |
 Cleft lip with palate | 143,118 | 39 | 0.27(0.19–0.37) |
 Cleft palate | 143,118 | 49 | 0.34(0.25–0.45) |
 Cleft lip | 143,118 | 20 | 0.14(0.09–0.22) |
Chromosomal abnormalities | 143,118 | 70 | 0.49(0.37–0.60) |
 Down syndrome | 143,118 | 28 | 0.20(0.13–0.28) |
 Other chromosomal abnormalities (aneuploid chromosomes or large chromosome deletions) | 143,118 | 42 | 0.29(0.21–0.40) |
Congenital digestive system defects | 143,118 | 63 | 0.44(0.33–0.55) |
 Anal atresia | 143,118 | 31 | 0.22(0.15–0.31) |
 Esophageal atresia | 143,118 | 6 | 0.04(0.02–0.09) |
 Other digestive system defects | 143,118 | 26 | 0.18(0.12–0.27) |
Congenital nervous system defects | 143,118 | 61 | 0.43(0.32–0.53) |
 Hydrocephalus | 143,118 | 31 | 0.22(0.15–0.31) |
 Spina bifida | 143,118 | 9 | 0.06(0.03–0.12) |
 Other nervous system defects | 143,118 | 23 | 0.16(0.10–0.24) |
Other unclassified defects | 143,118 | 301 | 2.10(1.87–2.34) |