This Calculator will assess your risk of having a preterm birth.
References: Creasy RK, Krowley SJ. Early detection of premature labor. Perinatal Press. 1978; 2 (number 4, April): 51-53. Creasy RK, Gummer BA, Liggins GC. System for predicting spontaneous preterm birth. Obstetrics & Gynecology. 1980; 55: 692-695. Taren DL, Graven SN. The sensitivity and specificity of a preterm risk score for various patient populations. J Perinatology. 1991; XI: 130-136.START