Studies examining comparative outcomes of schizophrenia in high-incomecountries with those in low- and middle-income countries remain of interestto researchers and may be of value in understanding some environmentalfactors that influence the course and outcome of the disorder. The view thatthe disorder has a better outcome in low- and middle-income countriescompared with high-income countries, even though widespread and supported bya set of World Health Organization (WHO) studies, requires further testingand exploration. Unfortunately, although not insurmountable, the obstaclesfor such studies both in terms of implementation and interpretation areconsiderable.