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Preterm births in Arizona

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Definition and Source



Preterm - Any neonate whose birth occurs through the end of the last day of the 37th week (259th day), following onset of the last menstrual period. By mother's county of residence.

Percentage is number of total per term births by mother's county of residence divided by all births by mother's county of residence.

Data Source

Arizona Health and Vital Statistics (Various Years), Bureau of Public Health Statistics, Various Health Statistics, Births Section, Arizona Department of Health Services; Table 5B-23.


NA indicates not statistically significant.

Last Updated

July 2022