Binary variables of zinc and ORS knowledge.^*

*Contingency tables assessing the correlation between the binary variables used to construct the knowledge indexes are included in supplementary file S1 Appendix. **Providers were not penalized for slight variations in the interpretation of age cut-offs. The following responses were also considered correct: (1) 10 mg for infants 2–6 months of age; (2) 20 mg for children 6–59 months/ 7–59 months/ 6–60 months/ 7–60 months of age Binary variables of zinc and ORS knowledge.*