Birth Outcomes of Infants by Age of Mother
Oregon Residents, 1997-1999

YAMHILL COUNTY
      Total 10-17 <15 15 16 17 18 19 20+
Total Births     3,491 177 4 24 51 98 132 176 3,004
Birthweight 1499 Gr. or Less Total 36 1 0 1 0 0 3 2 30
    <28 Weeks 16 0 0 0 0 0 2 1 13
    28-36 Weeks 17 0 0 0 0 0 1 0 16
    Unknown 3 1 0 1 0 0 0 1 1
  1500-2499 Grams Total 164 13 0 1 7 5 7 8 136
    <28 Weeks 2 0 0 0 0 0 0 1 1
    28-36 Weeks 82 6 0 0 3 3 5 4 67
    37-41 Weeks 67 6 0 1 3 2 2 2 57
    42+ Weeks 5 0 0 0 0 0 0 0 5
    Unknown 8 1 0 0 1 0 0 1 6
  2500+ Grams Total 3,290 163 4 22 44 93 122 166 2,838
    <28 Weeks 2 1 0 0 0 1 1 0 0
    28-36 Weeks 122 8 0 2 1 5 6 7 101
    37-41 Weeks 2,573 119 4 13 29 73 91 125 2,237
    42+ Weeks 455 28 0 7 10 11 15 26 386
    Unknown 138 7 0 0 4 3 9 8 114
5 Minute Apgar 0-3   22 1 0 0 0 1 0 1 20
  4-6   37 1 0 0 1 0 2 2 32
  7-10   3,429 175 4 24 50 97 130 173 2,950
  Not Stated   3 0 0 0 0 0 0 0 2
Tobacco Used Yes   538 30 1 3 9 17 31 43 434
  No   2,889 141 2 20 39 80 97 132 2,518
  Unknown   64 6 1 1 3 1 4 1 52
Alcohol Used Yes   40 0 0 0 0 0 0 3 37
  No   3,380 170 3 23 48 96 128 172 2,909
  Unknown   71 7 1 1 3 2 4 1 58
Birth Order 1st   1,339 168 4 24 50 90 101 116 954
  2nd   1,132 8 0 0 1 7 27 51 1,046
  3rd   589 1 0 0 0 1 4 8 575
  4th   254 0 0 0 0 0 0 1 253
  5+   171 0 0 0 0 0 0 0 171
  Unknown   6 0 0 0 0 0 0 0 5
Prenatal Care No Care   18 3 0 1 0 2 3 2 10
  Little or Late   117 7 0 2 3 2 6 10 94
  Adequate   3,332 164 4 21 46 93 122 164 2,881
  Unknown   24 3 0 0 2 1 1 0 19