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The risk factors of preterm births and their implication for neonatal deaths in South Carolina during 1998-2003

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The risk factors of preterm births and their implication for neonatal deaths in South Carolina ... Gravidity. Medical risk factors. Methods. Trends in preterm births ... – PowerPoint PPT presentation

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Title: The risk factors of preterm births and their implication for neonatal deaths in South Carolina during 1998-2003


1
The risk factors of preterm births and their
implication for neonatal deaths in South Carolina
during 1998-2003
  • Joanna Yoon, MSPH
  • Division of Biostatistics and Health GIS
  • PHSIS, SC DHEC

2
Background
  • Congenital malformations and disorders related to
    short gestation (i.e., Preterm births) are
    reported as the top leading causes of infant
    deaths in South Carolina. Also, they primarily
    result in neonatal deaths.

3
Objectives
  • To study the risk factors of preterm births and
    their implication for neonatal deaths in South
    Carolina

4
Methods
  • SC 1998-2003 birth and LB/ND data
  • Preterm
  • lt32 completed wks of gestation
  • lt37 completed wks of gestation
  • Risk factors
  • Maternal age
  • Maternal education
  • Marital status

5
Methods
  • Risk factors (conti.)
  • Number at birth
  • Smoking during pregnancy
  • Drinking during pregnancy
  • Time of onset of prenatal care
  • Gravidity
  • Medical risk factors

6
Methods
  • Trends in preterm births
  • The prevalence of preterm births
  • Logistic regression models
  • Preterm birth (lt37 wks) outcome variable
  • Multiple births excluded
  • Adjusted OR, 95 CI

7
Methods
  • Neonatal mortality rates for preterm infants and
    total births
  • SAS 8.2

8
Results
9
(No Transcript)
10
The Prevalence of Preterm Births for Selected
Risk Factors, SC Residence Data
11
The Prevalence of Preterm Births
12
Adjusted ORs and 95 CIs 2001-2003 SC
Residence Data
13
Adjusted ORs and 95 CIs 2001-2003 SC
Residence Data
14
Neonatal Mortality Rates for Preterm Infants and
Total Births 1998-2003 SC Residence Data
15
Conclusion
  • The percentage of preterm births from 1998 to
    2003 in SC is increasing.
  • The percentage of preterm lt 37 wks is increasing.
  • The percentage of preterm lt 32 wks is not much
    changed.

16
Conclusion
  • All selected risk factors except drinking were
    significant risk factors of preterm births for
    white and total mothers.
  • All selected risk factors except drinking and
    maternal education were significant for BO
    mothers.

17
Conclusion
  • Racial disparity
  • preterm birth percentages
  • neonatal mortality rates for preterm births.

18
Limitations
  • Self-reported on the birth certificate
  • Unexplored risk factors for preterm births
  • Unexplained factors

19
Future study
  • To further study about disparity and to identify
    and develop innovative strategies to prevent
    preterm births and reduce the neonatal mortality
    rates for preterm births.

20
Acknowledgements
  • Office of Public Health Statistics and
    Information Services, SC DHEC
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