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Change in Smoking: from 3 months Before to last 3 Months of Pregnancy*

1998 North Carolina Pregnancy Risk Assessment Monitoring System Survey Results
  Smoker who quit # cigarettes reduced # cigarettes same/more
Demographic Groups Total Respondents N % 95% C.I. N % 95% C.I. N % 95% C.I.
Total 511 203 45.3 39.6-51.1 230 42.9 37.2-48.7 78 11.9 8.7-16.0
Age
< 20 years 90 35 42.7 30.2-56.3 45 47.7 34.7-61.0 10 9.6 4.2-20.4
20-24 years 182 83 54.1 44.3-63.6 77 35.7 26.9-45.6 22 10.2 5.7-17.4
25-34 years 187 68 39.0 30.2-48.6 83 45.4 36.1-54.9 36 15.6 9.9-23.7
35+ years 52 17 41.4 24.1-61.1 25 50.6 31.8-69.1 10 8.0 2.7-21.7
Mother's Race
White 394 156 45.2 39.0-51.6 180 42.1 35.9-48.5 58 12.7 9.1-17.4
African American 103 43 48.2 33.5-63.2 43 43.6 29.4-59.0 17 8.2 3.6-17.4
Other Minorities 14 4 34.1 9.6-71.6 7 62.7 26.8-88.5 3 3.2 0.8-12.4
Hispanic origin
Yes 8 4 65.2 20.8-93.0 4 34.8 7.0-79.2 0 0.0 -
No 502 199 45.2 39.4-51.1 226 43.1 37.4-49.0 77 11.7 8.5-15.8
Education
< High School 153 39 29.8 20.5-41.2 83 57.5 46.2-68.1 31 12.6 7.1-21.3
High School 215 92 44.9 36.4-53.6 92 42.1 33.8-50.8 31 13.1 8.3-20.0
> High School 143 72 61.8 50.8-71.7 55 29.2 20.3-40.0 16 9.0 4.5-17.1
Marital Status
Married 306 140 48.0 40.8-55.2 121 38.1 31.3-45.3 45 14.0 9.7-19.7
Other 205 63 41.0 31.8-50.9 109 50.5 40.8-60.1 33 8.5 4.7-14.9
Income
15,999 or less 208 55 36.2 27.7-45.6 119 52.5 43.2-61.6 34 11.4 6.9-18.3
16,000-24,999 99 43 43.6 30.7-57.3 38 37.1 25.1-51.0 18 19.3 10.7-32.4
25,000-39,999 78 35 48.4 34.5-62.6 36 44.3 30.8-58.8 7 7.2 2.7-18.1
40,000 or more 91 54 60.9 47.7-72.6 25 28.7 18.4-41.9 12 10.4 4.8-21.0
WIC recipient
No 223 100 50.4 41.8-59.0 84 37.5 29.5-46.3 39 12.1 7.6-18.5
Yes 287 103 41.5 34.0-49.5 145 46.7 39.0-54.6 39 11.8 7.6-17.7
Medicaid recipient
No 190 98 52.9 43.9-61.8 65 33.3 25.3-42.3 27 13.8 8.7-21.2
Yes 321 105 40.2 32.9-47.8 165 49.3 41.7-56.9 51 10.6 6.9-15.9
Infant's birth weight
Under 1500 grams 86 34 37.3 27.6-48.0 38 44.3 34.0-55.2 14 18.4 11.2-28.9
1500-2499 grams 190 56 28.0 22.0-34.8 96 51.5 44.2-58.7 38 20.6 15.3-27.1
2500+ grams 234 112 47.0 40.7-53.4 96 42.1 35.8-48.5 26 11.0 7.6-15.6

*Survey Question:
Among Smokers, change in smoking during pregnancy: from 3 months before to last 3 months of pregnancy.

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