Estimating minimum dietary diversity for children aged 6-23 months: a comparison of agreement and cost of two recall methods in Cambodia and Zambia.

Objective: To compare the agreement and cost of two recall methods for estimating children's minimum dietary diversity (MDD).

Design: We assessed child's dietary intake on two consecutive days: an observation on day one, followed by two recall methods (list-based recall and multiple-pass recall) administered in random order by different enumerators at two different times on day two. We compared the estimated MDD prevalence using survey-weighted linear probability models following a two one-sided test equivalence testing approach.