Costs by treatment arm
Total incremental costs per household per year ranged from a minimum of USD$36.62 (arm 2, only nutrition components) to a maximum of USD$87.50 for arm 4, which included all programme components (nutrition, nutrition‐sensitive agriculture, and gender). Arm 3 included two components—nutrition and nutrition‐sensitive agriculture, and fell in between at USD$65.18. As many activities occurred at the household level, the programme was designed to target more than one household member. Considering both the index  female and male in the household, the cost per household drops to USD$19.61, USD$34.25 and USD$47.13 by arm, respectively (Table Summary of unit costs for the TRAIN intervention in Bangladesh (USD, 2019)Abbreviation: HH, Household.