TITLE

Regression Analysis of Labor Duration

AUTHOR(S)
Soltani, Mitra Ahmad
PUB. DATE
July 2006
SOURCE
Internet Journal of Gynecology & Obstetrics;2006, Vol. 5 Issue 2, p9
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Hypothesis: To find important predictors of active phase of labor and to provide a tool to predict obstructed labor prospectively, based on individual characteristics of pregnant women. Design: This is an observational prospective study on 230 laboring women in Tehran, studying 47 possible variables affecting labor duration using regression analysis. Results: Durations of labor in three different categories, namely Labor duration (active phase); Labor duration (4 cm dilation till delivery); Rate of cervical dilation cm/hr, were studied and predicted with R-Square of 0.95, 0.52 and 0.72 respectively. The most important predictors of labor duration (for rate category which was the least bias category) were maternal BMI and maternal lifestyle. The equations were: Rate = 0.57 + 0.09 BMI Rate = 71/Framingham Health Risk Assessment Score. The external validity of the equations were tested in a group of 43 laboring women. The estimated rate was fairly correlated with the observed values. Conclusion: The important predictors of labor duration were maternal BMI and maternal lifestyle.
ACCESSION #
22155958

 

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