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Figure 4 | BMC Pregnancy and Childbirth

Figure 4

From: An integrated systems biology approach to the study of preterm birth using "-omic" technology - a guideline for research

Figure 4

The Phenotypic Distribution of Preterm Birth. After excluding multifetal pregnancy and severe fetal malformations/fetal death in-utero, PTB can be classified into two broad clinical pathways - iatrogenic PTB and spontaneous PTB Adapted from Morken NH, Kallen K, Hagberg H, Jacobsson B. Preterm birth in Sweden 1973-2001: rate, subgroups, and effect of changing patterns in multiple births, maternal age and smoking. Acta Obstet Gynecol Scand. 2005;84:558-65 and PENNELL CE, JACOBSSON B, WILLIAMS SM, et al. Genetic epidemiologic studies of preterm birth: guidelines for research. Am J Obstet Gynecol 2007;196:107-18.

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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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