Birth Outcomes of Infants by Age of Mother,
Oregon Residents, 2005-2007
Polk County



Total 10-17 15 16 17 18 19 20+
Total Births 2,489 77 8 33 36 56 94 2,262
Birthweight 1499 Gr. or Less Total 21 0 0 0 0 1 1 19
<28 Weeks 3 0 0 0 0 1 1 1
28-36 Weeks 11 0 0 0 0 0 0 11
Unknown 7 0 0 0 0 0 0 7
1500-2499 Grams Total 117 7 1 2 4 10 7 93
28-36 Weeks 68 3 0 0 3 7 4 54
37-41 Weeks 33 3 1 1 1 3 0 27
42+ Weeks 3 0 0 0 0 0 1 2
Unknown 13 1 0 1 0 0 2 10
2500+ Grams Total 2,351 70 7 31 32 45 86 2,150
28-36 Weeks 88 3 1 1 1 3 5 77
37-41 Weeks 1,745 45 5 21 19 24 55 1,621
42+ Weeks 242 8 1 3 4 10 11 213
Unknown 276 14 0 6 8 8 15 239
5 Minute Apgar 0-3 9 0 0 0 0 0 1 8
4-6 27 0 0 0 0 0 2 25
7-10 2,448 77 8 33 36 56 91 2,224
Not Stated 5 0 0 0 0 0 0 5
Tobacco Used Yes 325 11 1 3 7 16 23 275
No 2,141 65 7 29 29 40 70 1,966
Unknown 23 1 0 1 0 0 1 21
Birth Order 1st 939 73 8 31 34 46 67 753
2nd 737 4 0 2 2 8 22 703
3rd 456 0 0 0 0 2 5 449
4th 216 0 0 0 0 0 0 216
5+ 141 0 0 0 0 0 0 141
Prenatal Care No Care 19 0 0 0 0 0 0 19
Little or Late 142 8 1 5 2 5 10 119
Adequate 2,322 68 7 27 34 51 84 2,119
Unknown 6 1 0 1 0 0 0 5