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Knowledge of Folic Acid*

1997 North Carolina Pregnancy Risk Assessment Monitoring System Survey Results
  No Yes
Demographic Groups Total Respondents N % 95% C.I. N % 95% C.I.
Total 844 230 23.1 19.4-27.3 614 76.9 72.7-80.6
Age
< 20 years 128 51 27.5 18.4-39.1 77 72.5 60.9-81.6
20-24 years 219 73 32.2 24.0-41.6 146 67.8 58.4-76.0
25-34 years 401 89 18.8 14.1-24.5 312 81.2 75.5-85.9
35+ years 96 17 12.4 5.9-24.4 79 87.6 75.6-94.1
Mother's Race
White 570 116 18.4 14.4-23.2 454 81.6 76.8-85.6
African American 251 105 34.4 26.4-43.3 146 65.6 56.7-73.6
Other Minorities 23 9 26.6 9.6-55.3 14 73.4 44.7-90.4
Hispanic origin
Yes 19 8 53.9 20.4-84.2 11 46.1 15.8-79.6
No 825 222 22.6 18.9-26.8 603 77.4 73.2-81.1
Education
< High School 164 68 35.5 25.6-46.8 96 64.5 53.2-74.4
High School 291 105 31.8 24.8-39.8 186 68.2 60.2-75.2
> High School 389 57 11.0 7.6-15.8 332 89.0 84.2-92.4
Marital Status
Married 564 104 16.5 12.6-21.2 460 83.5 78.8-87.4
Other 280 126 36.1 28.5-44.4 154 63.9 55.6-71.5
Income
15,999 or less 262 102 32.3 24.6-41.1 160 67.7 58.9-75.4
16,000-24,999 131 48 32.8 21.7-46.2 83 67.2 53.8-78.3
25,000-39,999 138 26 21.0 13.5-31.3 112 79.0 68.7-86.5
40,000 or more 261 29 8.8 5.4-14.2 232 91.2 85.8-94.6
WIC recipient
No 463 87 14.5 10.8-19.3 376 85.5 80.7-89.2
Yes 378 143 33.0 26.7-40.1 235 67.0 59.9-73.3
Medicaid recipient
No 434 69 14.0 10.2-18.8 365 86.0 81.2-89.8
Yes 410 161 33.5 27.2-40.5 249 66.5 59.5-72.8
Infant's birth weight
Under 1500 grams 170 72 44.2 36.7-51.9 98 55.8 48.1-63.3
1500-2499 grams 264 74 30.2 24.7-36.3 190 69.8 63.7-75.3
2500+ grams 408 83 22.3 18.3-26.9 325 77.7 73.1-81.7

*Survey Question:
20. Have you ever heard or read that taking the vitamin folic acid can help prevent some birth
defects?

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