Birth Outcomes of Infants by Age of Mother
Oregon Residents, 1998-2000

Yamhill County
  Total 10-17 <15 15 16 17 18 19 20+
Total Births   3,601 160 6 22 47 85 129 189 3,122
Birthweight 1499 Gr. or Less Total 38 1 0 1 0 0 4 3 30
    <28 Weeks 13 0 0 0 0 0 2 1 10
    28-36 Weeks 21 0 0 0 0 0 2 1 18
    Unknown 4 1 0 1 0 0 0 1 2
  1500-2499 Grams Total 155 11 0 1 6 4 11 9 124
    <28 Weeks 2 0 0 0 0 0 0 1 1
    28-36 Weeks 82 5 0 0 2 3 9 5 63
    37-41 Weeks 54 5 0 1 3 1 2 2 45
    42+ Weeks 6 0 0 0 0 0 0 0 6
    Unknown 11 1 0 0 1 0 0 1 9
  2500+ Grams Total 3,407 148 6 20 41 81 114 177 2,968
    28-36 Weeks 115 8 0 2 2 4 4 8 95
    37-41 Weeks 2,509 99 5 8 29 57 79 128 2,203
    42+ Weeks 467 31 0 10 6 15 16 24 396
    Unknown 316 10 1 0 4 5 15 17 274
5 Minute Apgar 0-3   18 0 0 0 0 0 1 1 16
  4-6   38 2 0 0 1 1 2 3 31
  7-10   3,542 158 6 22 46 84 126 185 3,073
  Not Stated   3 0 0 0 0 0 0 0 2
Tobacco Used Yes   532 31 2 4 10 15 33 43 425
  No   3,006 123 3 17 34 69 90 144 2,649
  Unknown   63 6 1 1 3 1 6 2 48
Alcohol Used Yes   40 0 0 0 0 0 1 3 36
  No   3,487 153 5 21 44 83 122 185 3,027
  Unknown   74 7 1 1 3 2 6 1 59
Birth Order 1st   1,329 152 6 22 46 78 99 127 951
  2nd   1,206 8 0 0 1 7 27 51 1,120
  3rd   631 0 0 0 0 0 3 10 618
  4th   248 0 0 0 0 0 0 1 247
  5+   181 0 0 0 0 0 0 0 181
  Unknown   6 0 0 0 0 0 0 0 5
Prenatal Care No Care   23 3 0 1 0 2 3 2 15
  Little or Late   117 7 2 1 2 2 7 14 89
  Adequate   3,431 147 4 20 43 80 117 173 2,994
  Unknown   30 3 0 0 2 1 2 0 24