Figure 5. Socioeconomic and health conditions in Mexico that may be related to risk factors for NCC.

Percentage of households with the following facilities: piped water, sewage, electricity, and toilets (A); rates per 100,000 inhabitants of population growth, fecundity, and mortality, as well as number of households per home and of schooling years per person (B); per capita income (C); and kilometers of different types of highways and roads built in recent decades (D).