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Premature Labor Resulted in Hospitalization*

1999 North Carolina Pregnancy Risk Assessment Monitoring System Survey Results
  No Yes
Demographic Groups Total Respondents N % 95% C.I. N % 95% C.I.
Total 496 299 63.2 56.2-69.7 197 36.8 30.3-43.8
Age
< 20 years 75 36 60.9 42.5-76.6 39 39.1 23.4-57.5
20-24 years 151 89 63.2 51.0-74.0 62 36.8 26.0-49.0
25-34 years 223 146 65.6 55.1-74.8 77 34.4 25.2-44.9
35+ years 47 28 53.0 28.1-76.4 19 47.0 23.6-71.9
Mother's Race
White 313 186 64.7 56.1-72.4 127 35.3 27.6-43.9
African American 171 103 55.8 43.0-67.9 68 44.2 32.1-57.0
Other Minorities 12 10 97.4 87.4-99.5 2 2.6 0.5-12.6
Hispanic origin
Yes 24 17 75.1 43.5-92.2 7 24.9 7.8-56.5
No 472 282 62.4 55.2-69.1 190 37.6 30.9-44.8
Education
< High School 113 56 61.4 46.7-74.3 57 38.6 25.7-53.3
High School 192 126 69.2 58.0-78.5 66 30.8 21.5-42.0
> High School 191 117 58.1 46.7-68.7 74 41.9 31.3-53.3
Marital Status
Married 317 190 61.4 52.7-69.4 127 38.6 30.6-47.3
Other 179 109 66.8 54.8-76.9 70 33.2 23.1-45.2
Income
15,999 or less 170 105 71.2 59.7-80.4 65 28.8 19.6-40.3
16,000-24,999 82 45 52.1 35.7-68.0 37 47.9 32.0-64.3
25,000-39,999 75 44 61.3 42.1-77.5 31 38.7 22.5-57.9
40,000 or more 110 72 64.1 48.6-77.1 38 35.9 22.9-51.4
WIC recipient
No 228 143 62.1 51.1-72.0 85 37.9 28.0-48.9
Yes 264 153 63.6 54.3-71.9 111 36.4 28.1-45.7
Medicaid recipient
No 194 117 59.6 47.9-70.3 77 40.4 29.7-52.1
Yes 302 182 65.1 56.4-73.0 120 34.9 27.0-43.6
Infant's birth weight
Under 1500 grams 150 102 67.8 59.8-74.9 48 32.2 25.1-40.2
1500-2499 grams 214 111 51.4 44.6-58.1 103 48.6 41.9-55.4
2500+ grams 131 86 65.1 56.5-72.9 45 34.9 27.1-43.5

*Survey Question:
What problems caused you to stay in the hospital? 28a. Labor pains more than 3 weeks before your
baby was due (preterm or early labor)

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