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Number of Months When Sure Pregnant*

1997 North Carolina Pregnancy Risk Assessment Monitoring System Survey Results
  1-4 Weeks 5-8 Weeks 9-12 Weeks 13 or More Weeks
Demographic Groups Total Respondents N % 95% C.I. N % 95% C.I. N % 95% C.I. N % 95% C.I.
Total 819 318 39.4 34.9-44.0 320 35.5 31.2-40.1 104 13.7 10.7-17.5 77 11.4 8.5-15.1
Age
< 20 years 121 25 20.5 12.3-32.3 47 28.7 19.1-40.7 24 25.5 16.0-38.2 25 25.3 15.7-38.0
20-24 years 214 82 35.8 27.4-45.1 84 37.1 28.5-46.6 26 14.8 9.1-23.3 22 12.3 7.0-20.8
25-34 years 389 170 46.9 40.4-53.6 153 36.8 30.7-43.3 42 9.2 6.0-13.9 24 7.1 4.2-11.9
35+ years 95 41 46.3 33.7-59.4 36 37.1 25.6-50.3 12 11.3 5.1-23.5 6 5.2 1.4-17.6
Mother's Race
White 557 235 43.1 37.7-48.6 235 36.4 31.3-41.8 57 11.5 8.3-15.8 30 9.0 5.9-13.4
African American 239 75 31.4 23.6-40.5 80 33.7 25.6-43.0 46 20.0 13.3-28.9 38 14.8 9.3-22.7
Other Minorities 23 8 24.7 8.7-53.1 5 32.4 12.5-61.6 1 9.8 1.4-45.8 9 33.1 12.8-62.6
Hispanic origin
Yes 17 5 27.7 5.6-71.4 7 45.4 13.6-81.4 2 2.6 0.5-12.7 3 24.3 4.0-71.2
No 802 313 39.5 35.1-44.2 313 35.4 31.0-39.9 102 13.9 10.8-17.7 74 11.2 8.3-14.9
Education
< High School 154 42 24.8 16.3-35.9 63 33.4 23.5-44.9 22 20.0 12.2-31.2 27 21.8 13.5-33.1
High School 283 104 39.2 31.5-47.5 100 28.8 22.0-36.6 45 17.5 11.8-25.1 34 14.5 9.3-22.0
> High School 382 172 46.1 39.8-52.5 157 41.4 35.2-47.7 37 8.1 5.3-12.4 16 4.4 2.3- 8.4
Marital Status
Married 555 247 45.0 39.6-50.5 221 37.0 31.9-42.5 59 10.5 7.5-14.6 28 7.5 4.8-11.5
Other 264 71 27.9 20.8-36.2 99 32.5 25.0-40.9 45 20.3 14.0-28.5 49 19.4 13.2-27.6
Income
15,999 or less 248 81 30.3 22.5-39.3 82 32.8 24.7-42.1 45 18.3 12.1-26.7 40 18.6 12.1-27.5
16,000-24,999 126 41 32.0 21.2-45.2 56 37.8 26.3-50.9 18 19.2 10.4-32.6 11 11.0 4.8-23.1
25,000-39,999 138 61 42.1 32.2-52.7 56 34.5 25.2-45.1 11 11.3 5.8-21.0 10 12.1 6.4-21.7
40,000 or more 256 120 51.5 43.8-59.0 108 36.7 29.8-44.3 21 7.8 4.5-13.1 7 4.0 1.5- 9.9
WIC recipient
No 449 197 47.0 41.0-53.1 188 38.3 32.6-44.3 37 7.4 4.8-11.4 27 7.3 4.4-12.0
Yes 364 117 30.2 24.0-37.2 131 32.7 26.2-39.8 67 21.1 15.6-27.8 49 16.1 11.3-22.6
Medicaid recipient
No 426 189 46.1 40.2-52.2 183 39.6 33.9-45.7 38 8.4 5.6-12.6 16 5.8 3.3-10.1
Yes 393 129 31.5 25.2-38.5 137 30.7 24.5-37.7 66 19.9 14.5-26.6 61 17.9 12.8-24.6
Infant's birth weight
Under 1500 grams 165 50 29.9 23.2-37.4 69 41.3 33.9-49.1 26 15.9 11.0-22.5 20 12.9 8.5-19.3
1500-2499 grams 258 103 39.1 33.2-45.3 106 40.5 34.5-46.7 28 11.1 7.7-15.7 21 9.4 6.2-14.1
2500+ grams 394 165 39.6 34.8-44.6 144 35.1 30.4-40.0 49 13.9 10.6-18.0 36 11.5 8.4-15.6

*Survey Question:
4. How many weeks or months pregnant were you when you were sure you were pregnant? (For example,
you had a pregnancy test or a doctor or nurse said you were pregnant.)

Percents based on fewer than 50 total respondents may not be reliable.
Interpret these percentages with caution. C.I. = confidence interval.