An integrated infant and young child feeding and small‐quantity lipid‐based nutrient supplementation programme in the<scp>Democratic Republic of Congo</scp>is associated with improvements in breastfeeding and handwashing behaviours but not dietary diversity

Integrating small‐quantity lipid‐based nutrient supplements (SQ‐LNS) into infant and young child feeding (IYCF) programmes can increase consumption of essential nutrients among children in vulnerable populations; however, few studies have assessed the impact of integrated IYCF–SQ‐LNS programmes on IYCF practices. A 2‐year, enhanced IYCF intervention targeting pregnant women and infants (0–12 months) was implemented in a health zone in the Democratic Republic of Congo (DRC). The enhanced IYCF intervention included community‐ and facility‐based counselling for mothers on handwashing, SQ‐LNS, and IYCF practices, plus monthly SQ‐LNS distributions for children 6–12 months; a control zone received the national IYCF programme (facility‐based IYCF counselling with no SQ‐LNS distributions). Cross‐sectional preintervention and postintervention surveys (n = 650 and 638 in intervention and control areas at baseline; n = 654 and 653 in each area at endline, respectively) were conducted in mothers of children 6–18 months representative of both zones. Difference in differences (DiD) analyses used mixed linear regression models. There were significantly greater increases in the proportion of mothers in the intervention (vs. control) zone who reported: initiating breastfeeding within 1 hr of birth (Adj. DiD [95% CI]: +56.4% [49.3, 63.4], P