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



Total 10-17 <15 15 16 17 18 19 20+
Total Births 3,807 103 5 8 30 60 106 177 3,420
Birthweight 1499 Gr. or Less Total 43 2 0 0 1 1 3 2 36
<28 Weeks 14 1 0 0 1 0 2 0 11
28-36 Weeks 19 0 0 0 0 0 0 2 17
37-41 Weeks 2 0 0 0 0 0 0 0 2
Unknown 8 1 0 0 0 1 1 0 6
1500-2499 Grams Total 170 5 0 0 1 4 5 11 149
<28 Weeks 1 0 0 0 0 0 0 0 1
28-36 Weeks 99 3 0 0 0 3 1 4 91
37-41 Weeks 55 1 0 0 1 0 2 5 47
Unknown 15 1 0 0 0 1 2 2 10
2500+ Grams Total 3,594 96 5 8 28 55 98 164 3,235
28-36 Weeks 144 3 1 1 1 0 6 6 129
37-41 Weeks 2,688 69 3 7 18 41 65 103 2,451
42+ Weeks 274 11 0 0 4 7 10 18 235
Unknown 488 13 1 0 5 7 17 37 420
5 Minute Apgar 0-3 21 0 0 0 0 0 1 1 19
4-6 43 3 0 0 1 2 2 1 37
7-10 3,739 99 5 8 29 57 103 175 3,361
Not Stated 4 1 0 0 0 1 0 0 3
Tobacco Used Yes 459 16 0 0 6 10 24 47 371
No 3,316 85 4 8 24 49 79 128 3,024
Unknown 32 2 1 0 0 1 3 2 25
Birth Order 1st 1,526 100 5 8 29 58 87 136 1,203
2nd 1,122 3 0 0 1 2 15 35 1,069
3rd 697 0 0 0 0 0 4 5 688
4th 270 0 0 0 0 0 0 1 269
5+ 192 0 0 0 0 0 0 0 191
Prenatal Care No Care 44 2 1 0 0 1 2 1 39
Little or Late 135 8 0 2 3 3 5 13 109
Adequate 3,614 93 4 6 27 56 99 162 3,259
Unknown 14 0 0 0 0 0 0 1 13