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

POLK COUNTY
      Total 10-17 <15 15 16 17 18 19 20+
Total Births     2,064 107 3 7 34 63 72 110 1,774
Birthweight 1499 Gr. or Less Total 12 1 0 0 0 1 1 0 10
    <28 Weeks 6 0 0 0 0 0 1 0 5
    28-36 Weeks 4 0 0 0 0 0 0 0 4
    Unknown 2 1 0 0 0 1 0 0 1
  1500-2499 Grams Total 86 4 0 1 1 2 7 3 72
    28-36 Weeks 42 2 0 1 0 1 3 3 34
    37-41 Weeks 35 2 0 0 1 1 3 0 30
    42+ Weeks 1 0 0 0 0 0 1 0 0
    Unknown 8 0 0 0 0 0 0 0 8
  2500+ Grams Total 1,966 102 3 6 33 60 64 107 1,692
    <28 Weeks 1 0 0 0 0 0 0 0 1
    28-36 Weeks 69 4 0 0 3 1 2 4 59
    37-41 Weeks 1,408 69 2 4 20 43 48 62 1,229
    42+ Weeks 311 19 0 2 6 11 12 29 251
    Unknown 177 10 1 0 4 5 2 12 152
5 Minute Apgar 0-3   7 1 0 0 0 1 1 0 5
  4-6   19 2 0 0 1 1 1 0 16
  7-10   2,032 104 3 7 33 61 70 110 1,748
  Not Stated   6 0 0 0 0 0 0 0 5
Tobacco Used Yes   306 28 1 2 8 17 21 18 239
  No   1,740 78 2 5 26 45 51 88 1,523
  Unknown   18 1 0 0 0 1 0 4 12
Alcohol Used Yes   48 2 0 0 0 2 2 0 44
  No   1,997 104 3 7 34 60 70 107 1,716
  Unknown   19 1 0 0 0 1 0 3 14
Birth Order 1st   806 100 3 7 34 56 60 81 565
  2nd   671 7 0 0 0 7 10 25 629
  3rd   360 0 0 0 0 0 1 4 355
  4th   137 0 0 0 0 0 1 0 136
  5+   87 0 0 0 0 0 0 0 87
  Unknown   3 0 0 0 0 0 0 0 2
Prenatal Care No Care   10 0 0 0 0 0 0 1 9
  Little or Late   50 6 0 0 3 3 2 2 40
  Adequate   1,990 99 3 7 30 59 70 107 1,714
  Unknown   14 2 0 0 1 1 0 0 11