Impact of preterm birth on parental separation: a French population-based longitudinal study

Objective

The objective of this study was to investigate both the effects of low gestational age and infant's neurodevelopmental outcome at 2 years of age on the risk of parental separation within 7 years of giving birth.

Design

Prospective.

Setting

24 maternity clinics in the Pays-de-la-Loire region.

Participants

This study included 5732 infants delivered at <35 weeks of gestation born between 2005 and 2013 who were enrolled in the population-based Loire Infant Follow-up Team cohort and who had a neurodevelopmental evaluation at 2 years. This neurodevelopmental evaluation was based on a physical examination, a psychomotor evaluation and a parent-completed questionnaire.

Outcome measure

Risk of parental separation (parents living together or parents living separately).

Results

Ten percent (572/5732) of the parents reported having undergone separation during the follow-up period. A mediation analysis showed that low gestational age had no direct effect on the risk of parental separation. Moreover, a non-optimal neurodevelopment at 2 years was associated with an increased risk of parental separation corresponding to a HR=1.49(1.23 to 1.80). Finally, the increased risk of parental separation was aggravated by low socioeconomic conditions.

Conclusions

The effect of low gestational age on the risk of parental separation was mediated by the infant's neurodevelopment.

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