Zinc Treatment for Childhood Diarrhea in Bangladesh - Recent Advances and Issues in Environmental Science - page 219

Figure 5. Income disparities in receiving zinc treatment as measured by concentration index curves
1-3 months and 19-23 months following the onset of the mass media campaign. Distribution of use
of zinc is equal among income levels if the concentration curve coincides with diagonal. During
the 1-3 months interval the 60% of poorest households accounted for 28% of the zinc treatments
received, while from 19-23 months they accounted for 46%.
The cross-sectional design of these surveys does not permit a determination of the
number of days the children received zinc treatment. As a proxy for duration of treat-
ment, caretakers were asked the number of zinc tablets they purchased (Figure 6). By
19-23 months following the launch of the mass media campaign in each of the popula-
tion strata nearly 50% or more of zinc tablet purchases were for <8 days.