Risk factors for preterm delivery in Burkina Faso (west Africa).

The environmental and socioeconomic risk factors for preterm delivery were assessed in a West African urban population (Bobo-Dioulasso, Burkina Faso). The study population were 102 cases of preterm delivery matched with 102 controls obtained from 4124 sequential deliveries which occurred between May and October 1989 in the three maternity centres in the city. The univariate analysis identified the risk factors as age (< 20 years), primiparity, marital status (single), low frequency of antenatal visits, death of a previous child and level of education of the mother. The following risk factors identified by multivariate analysis (logistic regression) are consistent with those identified in previous studies: youth of the mother, primiparity (P = 0.01) and death of a previous child (P < 0.05). On the other hand, in this study, the level of education of the parent was identified as an independent risk factor (P < 0.001). This finding could be used to determine a target population for prevention programmes.