Eighty-eight obsessional neurotics treated in the Mental Health Service in Hong Kong were studied and 87 were followed up from 6 months to 14 years. The mean follow-up period was 3.4 years since attending for psychiatric advice. The majority of the patients were personally examined by the author.
The general findings were on the whole similar to those obtained in studies carried out in European countries. The only striking difference was the sex ratio. Caution in comparing the present and earlier studies has been pointed out, and factors like intelligence and parental attitudes discussed.
At the end of the follow-up period 71 per cent. of the patients were improved. It was found that the longer the follow-up the better the outcome. Two patients slipped into schizophrenia, the development of which has been discussed.