Fig. 3
From: Dietary mineral supplies in Malawi: spatial and socioeconomic assessment
Adequacy of household nutrient supplies by household characteristics. Household energy, calcium (Ca), copper (Cu), iron (Fe), iodine (I), magnesium (Mg), selenium (Se) and zinc (Zn) supplies divided by sum of member requirements. Supply of I excludes salt. Households are grouped by expenditure quintile (1 = poorest to 5 = wealthiest), urban/rural location, soil type (1 = calcareous, 2 = non-calcareous, 3 = undifferentiated), household size (capped at 8), head gender (1 = male, 2 = female) and head education (1 = none, 2 = primary school leaving certificate, 3 = junior certificate of education, 4 = Malawi school certificate of education). Points represent median values, bars represent first and third quartiles, respectively