Birth Outcomes of Infants by Age of Mother,
Oregon Residents, 2003-2005
Polk County



Total 10-17 15 16 17 18 19 20+
Total Births 2,429 75 8 29 38 58 93 2,203
Birthweight 1499 Gr. or Less Total 19 0 0 0 0 2 0 17
<28 Weeks 7 0 0 0 0 2 0 5
28-36 Weeks 11 0 0 0 0 0 0 11
Unknown 1 0 0 0 0 0 0 1
1500-2499 Grams Total 113 3 0 1 2 6 5 99
<28 Weeks 2 0 0 0 0 0 0 2
28-36 Weeks 72 2 0 0 2 4 2 64
37-41 Weeks 37 1 0 1 0 2 3 31
42+ Weeks 1 0 0 0 0 0 0 1
Unknown 1 0 0 0 0 0 0 1
2500+ Grams Total 2,297 72 8 28 36 50 88 2,087
<28 Weeks 1 0 0 0 0 0 0 1
28-36 Weeks 99 1 0 1 0 3 1 94
37-41 Weeks 1,900 56 5 23 28 34 73 1,737
42+ Weeks 217 12 3 2 7 13 11 181
Unknown 80 3 0 2 1 0 3 74
5 Minute Apgar 0-3 9 0 0 0 0 1 1 7
4-6 23 0 0 0 0 0 0 23
7-10 2,390 75 8 29 38 57 92 2,166
Not Stated 7 0 0 0 0 0 0 7
Tobacco Used Yes 289 10 1 3 6 9 15 255
No 2,123 63 7 25 31 49 76 1,935
Unknown 17 2 0 1 1 0 2 13
Alcohol Used Yes 8 0 0 0 0 0 0 8
No 2,401 73 8 28 37 58 91 2,179
Unknown 20 2 0 1 1 0 2 16
Birth Order 1st 878 73 8 28 37 46 68 691
2nd 767 2 0 1 1 10 20 735
3rd 470 0 0 0 0 2 5 463
4th 198 0 0 0 0 0 0 198
5+ 116 0 0 0 0 0 0 116
Prenatal Care No Care 22 1 0 0 1 0 1 20
Little or Late 138 7 1 3 3 7 9 115
Adequate 2,264 66 7 26 33 51 83 2,064
Unknown 5 1 0 0 1 0 0 4