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Geospatial variation in caesarean delivery
Jennifer Vanderlaan1, Johnathan A Edwards2, Anne Dunlop3
1University of Nevada Las Vegas School of Nursing Las Vegas NV.
Aim:
The purpose of this study was to evaluate the variation in caesarean delivery rates across counties in Georgia and to determine whether county-level characteristics were associated with clusters.
Design:
This was a retrospective, observational study.
Methods:
Rates of primary and repeat caesarean by maternal county of residence were calculated for 2008 through 2012. Global Moran's I (Spatial Autocorrelation) was used to identify geographic clustering. Characteristics of high and low-rate counties were compared using student's t test and chi-squared test.
Results:
Spatial analysis of both primary and repeat caesarean rate identified the presence of clusters (Moran's I = 0.375; p < .001). Counties in high-rate clusters had significantly lower access to midwives, more deliveries paid by Medicaid, higher proportion of births for women belonging to racial/ethnic minority groups and were more likely to be rural.
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