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



Total 10-17 <15 15 16 17 18 19 20+
Total Births 11,761 222 7 24 63 128 211 327 11,001
Birthweight 1499 Gr. or Less Total 101 3 1 0 1 1 4 3 91
<28 Weeks 36 2 0 0 1 1 1 1 32
28-36 Weeks 45 0 0 0 0 0 3 0 42
37-41 Weeks 2 0 0 0 0 0 0 0 2
Unknown 18 1 1 0 0 0 0 2 15
1500-2499 Grams Total 551 11 0 0 4 7 11 14 515
<28 Weeks 1 0 0 0 0 0 0 0 1
28-36 Weeks 297 6 0 0 3 3 5 7 279
37-41 Weeks 159 4 0 0 1 3 2 1 152
42+ Weeks 5 0 0 0 0 0 0 1 4
Unknown 89 1 0 0 0 1 4 5 79
2500+ Grams Total 11,109 208 6 24 58 120 196 310 10,395
<28 Weeks 6 1 0 1 0 0 0 1 4
28-36 Weeks 485 12 0 3 5 4 8 11 454
37-41 Weeks 8,218 137 4 10 36 87 124 213 7,744
42+ Weeks 890 21 0 2 7 12 26 31 812
Unknown 1,510 37 2 8 10 17 38 54 1,381
5 Minute Apgar 0-3 50 2 0 0 0 2 0 3 45
4-6 108 3 1 0 2 0 2 4 99
7-10 11,553 216 6 24 61 125 209 317 10,811
Not Stated 50 1 0 0 0 1 0 3 46
Tobacco Used Yes 1,172 42 2 5 11 24 48 60 1,022
No 10,506 178 5 19 51 103 161 265 9,902
Unknown 83 2 0 0 1 1 2 2 77
Birth Order 1st 4,654 203 7 23 57 116 184 263 4,004
2nd 3,925 17 0 1 6 10 23 49 3,836
3rd 1,966 2 0 0 0 2 4 14 1,946
4th 766 0 0 0 0 0 0 1 765
5+ 446 0 0 0 0 0 0 0 446
Unknown 4 0 0 0 0 0 0 0 4
Prenatal Care No Care 129 5 1 0 3 1 2 5 117
Little or Late 423 28 2 5 4 17 15 17 363
Adequate 11,170 188 4 19 56 109 192 305 10,485
Unknown 39 1 0 0 0 1 2 0 36