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Maternal Problem with Premature Labor?*
2007 Maine Pregnancy Risk Assessment Monitoring System Survey Results
        No       Yes    
Demographic Groups Population % 95% CI % 95% CI
  Total 14,110 95.6 94.4 - 96.5 4.4 3.5 - 5.6
Age                    
<20 years 1,176 98.3 97.2 - 98.9 1.7 1.1 - 2.8
20-24 years 3,620 95.6 92.8 - 97.4 4.4 2.6 - 7.2
25-34 years 7,307 94.9 93.0 - 96.3 5.1 3.7 - 7.0
35+ years 2,007 96.1 92.4 - 98.0 3.9 2.0 - 7.6
Mother's Race                  
White 13,392 95.7 94.5 - 96.6 4.4 3.4 - 5.5
Black 330 # # - # # # - #
Other  373 98.2 94.9 - 99.4 1.8 0.6 - 5.1
Hispanic Origin                  
Yes 208^ # # - # # # - #
No 13,871^ 95.5 94.3 - 96.5 4.5 3.5 - 5.7
Education                  
< High School 1,490 97.6 96.4 - 98.5 2.4 1.6 - 3.6
High School 4,761 95.6 93.1 - 97.2 4.4 2.8 - 6.9
> High School 7,798 95.2 93.4 - 96.5 4.8 3.5 - 6.6
Marital Status                  
Married 8,592 95.7 94.1 - 96.9 4.3 3.1 - 5.9
Other 5,515 95.3 93.2 - 96.8 4.7 3.2 - 6.8
Income                    
$15,999 or less 4,018** 95.4 93.1 - 96.9 4.6 3.1 - 6.9
$16,000-24,999 1,819** 95.5 91.0 - 97.8 4.5 2.2 - 9.0
$25,000-39,999 3,015** 96.2 93.4 - 97.9 3.8 2.1 - 6.6
$40,000 or more 4,531** 95.3 93.0 - 96.9 4.7 3.1 - 7.0
Enrolled in WIC                  
No 8,145** 95.9 94.4 - 97.0 4.1 3.0 - 5.6
Yes 5,194** 95.0 92.6 - 96.6 5.0 3.4 - 7.4
Enrolled in MaineCare/Medicaid                
No 6,431** 95.6 93.8 - 96.9 4.4 3.1 - 6.2
Yes 6,953** 95.5 93.7 - 96.8 4.5 3.2 - 6.3
Infant's birth weight                  
<2500 grams 892 66.0 62.7 - 69.2 34.0 30.8 - 37.4
2500 grams or more 13,207 97.4 96.0 - 98.3 2.7 1.7 - 4.0
NOTES:
Population size for groups giving birth in Maine are taken from the Maine Vital Statistics System unless otherwise noted.
Unknowns are excluded from all tabulations.
*Survey Question 24: Did you have any of these problems during your pregnancy?
  Labor Pains more than 3 weeks before baby was due (premature rupture of membranes)
** Estimates of the population size for this group giving birth in Maine are made through PRAMS.
^ Estimate of Hispanic population giving birth in Maine is taken from the 2007 birth file.
# There were fewer than 10 survey respondents to this question.  Data may be unreliable for describing this group, therefore 
percent is not reported.
CI = 95% Confidence Interval
Maine Department of Health and Human Services
Office of Data, Research, and Vital Statistics