Background: The estimated global premature birth rate for 2014 was 10.6%, equating to an estimate of 14.84 million live premature births. The experience of premature birth does not impact solely on the infant and mother as individuals but occurs in the context of a critical point in time when they are developing a relationship with one another. The aim of this study was to investigate the relationships between social support, mother to infant attachment, and depressive symptoms of mothers with preterm infants within the first 12 months' post discharge from the Neonatal Intensive Care Unit (NICU).
Methods: A correlational cross-sectional study design was used. Data were collected using a four-part online survey which included the Perinatal Social Support Questionnaire (PICSS), Maternal Postnatal Attachment Scale (MPAS) and the Edinburgh Postnatal Depression Scale (EPDS) with mothers of preterm infants (n = 140).
Results: The prevalence of postnatal depression was 37.9% (95% CI: 29.8 to 46.4%). In univariable analyses, history of depression (p = 0.005), aged 35-39 years (p = 0.006), no formal social support (p = 0.040), less informal social supports (p = 0.018), lower overall maternal attachment (p < 0.001) and lower overall functional social support (p < 0.001) were significantly associated with a higher level of depressive symptoms. Lower scores on two of the maternal attachment subscales (quality of attachment and absence of hostility) and all four of the functional social support subscales were significantly associated with a higher level of depressive symptoms (p < 0.001 for all). In the multivariable analysis, prior history of depression (p = 0.028), lower score of maternal attachment (p < 0.001) and lower emotional functional social support (p = 0.030) were significantly associated with a higher level of depressive symptoms.
Conclusion: Women who experience a premature birth, have a prior history of depression, poor infant attachment and poor emotional social support have a higher level of depressive symptoms. Results emphasise the need for professionals to encourage mobilisation of maternal formal and informal social supports. It is important to intervene early to address maternal emotional well-being and enhance the developing mother-preterm infant relationship.
Keywords: Mother-infant attachment; Mothers; NICU; Postnatal depression; Preterm; Social support.