From: The genomics of preterm birth: from animal models to human studies
Risk factor | Relative risk (95% CI) | Reference |
---|---|---|
Ethnicity (African-American) | 1.3 (1.0 to 1.6) | [75] |
Maternal stress | 3.3 (1.2 to 9.4) | [76] |
Maternal age | 2.1 (1.3 to 3.6) | [77] |
Tobacco use | 1.3 (1.2 to 1.3) | [78] |
Surgical intervention for cervical disease | 1.3 (1.3 to 1.4) | [79] |
Genetics: previous preterm birth | 5.6 (5.5 to 5.8) | [13] |
Genetics: maternal family history of preterm birth | 1.6 (1.5 to 1.6) | [13] |