Schneider's first-rank symptoms of schizophrenia: prevalence and diagnostic use. A study from Pakistan.

The prevalence of Schneiderian first-rank symptoms in 75 schizophrenic in-patients was found to be 67%. The commonest were somatic passivity, thought broadcast, and thought insertion. This suggests a considerable variation in the prevalence of first-rank symptoms and their individual frequencies in different cultures. First-rank symptoms thus have inherent weaknesses.