Birth risks and outcomes among American
Indian and Alaska Native women in Idaho
Data from Improving Data & Enhancing Access – Northwest (IDEA-NW) Project
(Northwest Tribal EpiCenter) and ID Bureau of Vital Records & Health Statistics
Notes
The data presented come from linked birth certificates from years 2006-2010. Race information on birth certificates may not be
correctly recorded if the mother or father isn’t asked directly. The IDEA-NW Project compared parents’ information on state birth
certificates to the Northwest Tribal Registry to more completely represent Native mothers and infants. This results in more
complete and accurate data for Northwest AI/AN. Please contact us if you are interested in additional data for your community.
Characteristics of Mothers
Maternal Age at Birth
• AI/AN: American Indian/Alaska Native
• NHW: Non-Hispanic White
60%
Married
48.4% 78.6%
Unmarried
51.6% 21.4%
Percent of Births
Marital Status
AI/AN
50%
Demographic Characteristics of Mothers
AI/AN NHW
54.1%
35.1%
29.1%
30%
20%
Education
10.8%
≤12th grade, no Diploma/GED
Diploma/GED or higher
WIC use (Special Supplemental
Nutrition Program for Women,
Infants, and Children)
24.2%
9.2%
75.8% 90.8%
10%
AI/AN
<15 yrs
61.2% 34.5%
NHW
5.5%
15-17 yrs
18-19 yrs
20-24 yrs
Age Group
25-34 yrs
35+ yrs
AI/AN
NHW
Normal or Underweight (<25)
41.9%
56.5%
Overweight or Obese (≥25)
58.1%
43.5%
Pre-Pregnancy Diabetes
1.2%
0.6%
Pre-Pregnancy Hypertension
1.1%
1.0%
133.7
28.0
0.2
15-19 years old†
9.7%
Physical Characteristics of Mothers
82.0
10-14 years old*
7.9%
Average Maternal Age By Race:
• AI/AN: 25 yrs
• NHW: 27 yrs
105.2
0.7
5.5%
1.6%
0.1% 0.0%
0%
Birth Rates by Age Group
Birth Rate per 1,000 females
40.7%
NHW
40%
15-44 years old
(General Fertility
Rate)‡
Pre-Pregnancy Body Mass Index (BMI)
*Birth Rate (10-14 years old):
# births to females ages 10-14 per 1,000 females ages 10-14 per year
†Birth Rate (15-19 years old):
# births to females ages 15-19 per 1,000 females ages 15-19 per year
‡General Fertility Rate (GFR) (15-44 years old):
# live births to females 15-44 per 1,000 females ages 15-44 per year
Northwest Portland Area Indian Health Board
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Characteristics of Pregnancies & Births
Trimester Entered Prenatal Care
Characteristics of Pregnancies
AI/AN
NHW
Gestational Diabetes
4.6%
3.7%
Gestational Hypertension
6.8%
6.5%
Any Smoking During
Pregnancy
20.2%
13.5%
Third
Trimester
3.1%
No
Prenatal
Care
Mothers With STIs (includes
HIV, chlamydia, syphilis,
gonorrhea, and herpes)
5.8%
First
Trimester
AI/AN
59.1%
31.0%
1.4%
8.6%
Second
Trimester
NHW
74.5%
20.8%
0.7%
3.9%
Characteristics of Births
AI/AN
NHW
Preterm (<37 wks)
9.8%
8.7%
Term (≥37 wks)
90.2%
91.3%
Smoking¥ by Trimester
Gestational Age
Vaginal
72.4%
77.0%
Cesarean
27.6%
23.0%
Birth Weight
Low (<2500 g)
6.7%
6.1%
Normal (2500 to <4000 g)
83.8%
85.5%
9.5%
8.4%
High (≥4000 g)
Breastfeeding when leave
hospital
19.5%
20%
Percent of Births
Method of Delivery
83.3%
89.3%
No
16.7%
10.7%
15.7%
14.8%
15%
10%
13.1%
10.8%
5%
10.3%
0%
First
Trimester
¥Smoking
Yes
AI/AN
NHW
25%
Second
Trimester
Third
Trimester
means at least one cigarette per day.
For more information please contact:
Suzanne Zane, DVM
Maternal and Child Health Epidemiologist
Phone: 503-416-3293
E-mail: szane@npaihb.org
Website: http://www.npaihb.org/epicenter/project/
improving_data_enhancing_access_northwest_idea_nw/
Northwest Portland Area Indian Health Board
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