Fig. 1.

Schizophrenia Prevalence and Latitude by Continent and Infant Mortality.

Note: South Asia sites were from India and Indonesia; those sites had higher infant mortality rates than all but one of the East Asian sites. For the regression lines in North America, those with infant mortality rates above 30 per 1000 were grouped as having a higher rate, those below 30 as having a lower rate. The slopes of linear regression lines were 0.15 for the East Asian sites, 0.22 for the African sites, 0.086 for the South Asian sites, 0.14 for the North American sites with lower infant mortality, 0.51 for the North American sites with higher infant mortality, and 0.48 for the European sites.