This study has demonstrated that among low-income, relatively unacculturated Mexican-American households, a high level of expressed emotion on the part of key relatives significantly increases the risk of relapse for remitted schizophrenics who return home to live with their families after hospital discharge. This cross-cultural replication of earlier research findings in London and southern California suggests that critical, hostile, or emotionally overinvolved attitudes and behaviors may be general major stressors that adversely influence the fragile adaptation of schizophrenic individuals in diverse cultural settings. The finding of a lower prevalence of high levels of expressed emotion among Mexican-American compared to Anglo-American and British households lends support to the hypothesis that intrafamilial behaviors may account for different schizophrenic outcomes in different cultures.