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

1997 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 230 98 46.9 37.6-56.5 92 40.2 31.2-49.9 40 12.9 7.8-20.6
Age
< 20 years 37 16 57.9 33.6-78.9 14 34.4 15.5-60.0 7 7.7 1.8-28.0
20-24 years 73 34 44.6 29.7-60.5 31 43.7 28.8-59.8 8 11.7 4.8-25.9
25-34 years 109 44 46.4 32.9-60.3 41 36.3 23.9-50.9 24 17.3 8.9-31.1
35+ years 11 4 27.3 5.8-69.7 6 71.6 29.9-93.7 1 1.1 0.1- 8.6
Mother's Race
White 181 74 41.7 31.7-52.4 78 46.1 35.7-56.9 29 12.1 6.8-20.7
African American 44 23 70.2 48.0-85.8 12 14.2 5.1-33.9 9 15.6 5.1-38.8
Other Minorities 5 1 24.6 3.5-74.8 2 37.1 8.4-79.0 2 38.3 9.1-79.3
Hispanic origin
Yes 3 2 92.8 47.9-99.5 1 7.2 0.5-52.1 0 0.0 -
No 227 96 46.4 37.0-56.0 91 40.6 31.5-50.4 40 13.0 7.9-20.8
Education
< High School 68 20 32.5 17.4-52.4 28 50.2 31.8-68.5 20 17.3 7.6-34.9
High School 96 39 43.8 30.0-58.7 39 39.3 26.1-54.3 18 16.8 8.5-30.7
> High School 66 39 66.0 49.5-79.3 25 31.3 18.5-47.7 2 2.8 0.5-15.0
Marital Status
Married 137 62 53.9 41.5-65.9 53 34.4 23.6-47.1 22 11.7 6.1-21.5
Other 93 36 39.4 26.4-54.2 39 46.4 32.4-61.0 18 14.1 6.6-27.7
Income
15,999 or less 98 31 39.9 26.3-55.2 46 49.4 34.8-64.2 21 10.7 4.8-22.2
16,000-24,999 45 24 62.9 40.9-80.6 16 24.9 11.2-46.6 5 12.2 3.6-34.1
25,000-39,999 37 14 42.2 23.1-63.8 15 42.8 23.6-64.5 8 15.0 4.7-38.4
40,000 or more 41 26 57.7 36.8-76.2 11 32.1 15.9-54.2 4 10.3 2.8-31.5
WIC recipient
No 95 43 39.7 26.4-54.8 39 48.4 33.6-63.4 13 11.9 5.2-25.2
Yes 133 54 50.8 38.6-63.0 52 35.4 24.6-48.0 27 13.7 7.3-24.4
Medicaid recipient
No 87 49 53.7 39.2-67.6 31 36.1 23.5-51.0 7 10.2 4.1-23.3
Yes 143 49 42.9 31.1-55.6 61 42.6 30.7-55.3 33 14.5 7.9-25.1
Infant's birth weight
Under 1500 grams 52 19 33.5 22.1-47.3 22 44.9 31.7-58.8 11 21.6 12.3-35.2
1500-2499 grams 89 34 37.0 27.5-47.6 36 40.3 30.4-51.0 19 22.7 14.9-33.1
2500+ grams 89 45 48.2 37.8-58.8 34 40.1 30.1-50.9 10 11.7 6.4-20.7

*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.