Early Preterm Birth (< 34 weeks) Risk Calculator

Use the early preterm birth risk calculator to find mother's risk of early preterm birth.Enter mother's characteristics and press 'submit.'

Pre-Pregancy Diabetes Status

No/Unknown?Not stated

Yes

Pre-Pregancy Hypertension Status

NO/Unknown/Not stated

Yes

Previous Preterm Birth Status

NO/Unknown

Yes

Infertility Treatment Usage Status

NO/Unknown/Not stated

Yes

Fertility Enhancing Drug Usage Status

Not applicable/Not stated?unknonw

Yes

Delivery Payment Source

Medicaid

Private Insurance

Self-Pay/Other/Unknown

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The data are from National Vital Statistics System's 2014 Natality public data file(http://www.cdc.gov/reproductivehealth/maternalinfanthealth/pretermbirth.htm ),comlied by Center for Diease Control and Prevention's National Center for Health Statistics.

This study was supported in part by a National Institutes of Health (NIH) Clinical and Translational Science Award Grant (UL1 TR000001, formerly UL1RR033179), awarded to the University of Kansas Medical Center.

Reference: Zhang, C, Garrard, L, Keighley, J, Carlson, S, Gajewski, BJ (in press) .Subgroup identification of early preterm birth (ePTB): informing a future prospective enrichment clinical trial design. BMC Pregnancy and Childbirth.