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Out-of-hospital births in California 1991-2011.

Out-of-hospital births in California 1991-2011.
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Girsen AI, Mayo JA, Lyell DJ, Blumenfeld YJ, Stevenson DK, El-Sayed YY, Shaw GM, Druzin ML,


Girsen AI, Mayo JA, Lyell DJ, Blumenfeld YJ, Stevenson DK, El-Sayed YY, Shaw GM, Druzin ML, (click to view)

Girsen AI, Mayo JA, Lyell DJ, Blumenfeld YJ, Stevenson DK, El-Sayed YY, Shaw GM, Druzin ML,

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Journal of perinatology : official journal of the California Perinatal Association 2017 11 09() doi 10.1038/jp.2017.156
Abstract
OBJECTIVE
We investigated the frequencies and characteristics of out-of-hospital births in a 20-year period in California, where 1 of every 7 births in the United States occurs.

STUDY DESIGN
Birth certificate records of deliveries in California between 1991 and 2011 were analyzed. Out-of-hospital births were assessed by year, parity, gestational age and maternal race/ethnicity.

RESULTS
In the 20-year period there were 10 593,904 deliveries, of which 46 243 occurred out of hospital (0.44%). Out-of-hospital births decreased from 0.54 to 0.38% per year between 1991 and 2004, and increased from 0.41% in 2005 to 0.61% in 2011. In contrast, preterm out-of-hospital births declined from 7.2% in 2006 to 5.0% in 2011. The frequency of vaginal birth after cesarean in the out-of-hospital birth cohort increased from 1.2% (n=19) in 1996 to 4.2% (n=82) in 2011.

CONCLUSION
California birth records from a 20-year period show an increase in out-of-hospital births from years 2005 to 2011, following a period of decline from 1991 to 2004.Journal of Perinatology advance online publication, 9 November 2017; doi:10.1038/jp.2017.156.

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