Daily skin‐to‐skin contact in full‐term infants and breastfeeding: Secondary outcomes from a randomized controlled trial

This randomized controlled trial evaluated the effect of a 5‐week daily skin‐to‐skin contact (SSC) intervention between mothers and their full‐term infants, compared with care‐as‐usual, on exclusive and continued breastfeeding duration during the first post‐natal year. Healthy pregnant women (n = 116) from a community sample were enrolled and randomly allocated to the SSC or care‐as‐usual condition. SSC mothers were requested to provide one daily hour of SSC for the first five post‐natal weeks. Twelve months post‐partum, mothers indicated the number of exclusive and continued breastfeeding months. Multiple regression analyses were conducted using intention‐to‐treat, per‐protocol and exploratory dose–response frameworks. In intention‐to‐treat analyses, exclusive and continued breastfeeding duration was not different between groups (exclusive: 3.61 ± 1.99 vs. 3.16 ± 1.77 months; adjusted mean difference 0.28, 95% confidence interval [CI] −0.33 to 0.89; p = 0.36; continued: 7.98 ± 4.20 vs. 6.75 ± 4.06 months; adjusted mean difference 0.81, 95% CI −0.46 to 2.08; p = 0.21). In per‐protocol analyses, exclusive and continued breastfeeding duration was longer for SSC than care‐as‐usual dyads (exclusive: 4.89 ± 1.26 vs. 3.25 ± 1.80 months; adjusted mean difference 1.28, 95% CI 0.31–2.24; p = 0.01; continued: 10.81 ± 1.97 vs. 6.98 ± 4.08 months; adjusted mean difference 2.33, 95% CI 0.13–4.54; p = 0.04). Exploratory dose–response effects indicated that more SSC hours predicted longer exclusive and continued breastfeeding duration. This study demonstrates that for the total group, the 5‐week daily SSC intervention did not extend exclusive and continued breastfeeding duration. However, for mothers performing a regular daily hour of SSC, this simple and accessible intervention may extend exclusive and continued breastfeeding duration by months. Future studies are required to confirm these promising findings. Trial registration: Netherlands Trial Register (NTR5697).