Table 1 Characteristics of Missouri women with singleton live births, 1997–1999, by maternal age.
12 to 17 (N = 10,131) | 18 to 19 (N = 18,954) | 20–35 (N = 28,899) | |||||
|---|---|---|---|---|---|---|---|
Characteristic | N | % | N | % | N | % | |
Infant mortality | 121 | 1.2 | 158 | 0.8 | 173 | 0.6 | |
Neonatal mortality | 69 | 0.7 | 92 | 0.5 | 111 | 0.4 | |
Post-neonatal mortality | 52 | 0.5 | 65 | 0.3 | 60 | 0.2 | |
Clinical Estimate of Gestational Age | <24 Weeks | 40 | 0.4 | 50 | 0.3 | 59 | 0.2 |
24–28 weeks | 102 | 1.0 | 110 | 0.6 | 139 | 0.5 | |
29–32 weeks | 161 | 1.6 | 252 | 1.3 | 260 | 0.9 | |
33–36 weeks | 808 | 8.0 | 1,318 | 7.0 | 1,739 | 6.0 | |
>36 weeks | 8,961 | 89.0 | 17,109 | 90.8 | 26,571 | 92.4 | |
Birth Weight Category | Normal (> 2500 gm) | 9,114 | 90.0 | 17,358 | 91.6 | 27,207 | 94.1 |
Low (≤ 2500 gm) | 1,017 | 10.0 | 1,596 | 8.4 | 1,692 | 5.9 | |
Maternal Race | Missing/other | 137 | 1.4 | 256 | 1.4 | 635 | 2.2 |
Non-Hispanic white | 6,688 | 66.0 | 14,234 | 75.1 | 24,288 | 84.0 | |
Non-Hispanic black | 3,306 | 32.6 | 4,464 | 23.6 | 3,976 | 13.8 | |
Age appropriate education level | 8,592 | 86.1 | 12,516 | 66.0 | 25,086 | 86.8 | |
Medicaid | 7,698 | 77.1 | 14,983 | 80.4 | 10,070 | 35.4 | |
W.I.C. | 7,761 | 77.8 | 14,085 | 75.6 | 10,412 | 36.7 | |
Food Stamp Program | 2,060 | 20.7 | 5,351 | 28.7 | 4,729 | 16.7 | |
Parity | nulliparous | 8,660 | 85.5 | 12,375 | 65.3 | 8,382 | 29.0 |
Unmarried | 9,140 | 90.3 | 14,064 | 74.3 | 7,986 | 27.7 | |
Tobacco use During Pregnancy | 2,486 | 24.7 | 5,425 | 28.7 | 5,262 | 18.3 | |
Alcohol use during pregnancy | 61 | 0.6 | 90 | 0.5 | 268 | 0.9 | |
Kotelchuck index | Unknown | 487 | 4.8 | 747 | 3.9 | 805 | 2.8 |
Inadequate | 2,101 | 20.7 | 2,789 | 14.7 | 2,037 | 7.0 | |
Adequate/Intermediate | 5,273 | 52.0 | 11,121 | 58.7 | 18,832 | 65.2 | |
Adequate Plus | 2,270 | 22.4 | 4,297 | 22.7 | 7,225 | 25.0 | |