The analysis survey of 4335 children and adolescents with leyton obsessional inventory-child version

Objective To survey obsessive-compulsive symptom of children and adolescents. Methods 4335 children and adolescents aged (13.88±2.44) year-old (47.7% male) were measured with leyton obsessional inventory-child version(LOI-CV). Results The frequency of total yes/no score of LOI-CV manifests as normal distribution, while the frequency of total interfering score manifests as " J" curve. Total yes/no scores of female were higher than that of male ((8.55±3.87), (8.21±3.99), t=2.86, P 0.05). Primary school (n=937), junior high school (n=1906), senior high school(n=1492) exited significant difference((7.86±3.82), (8.52±3.93), (8.55±3.891) respectively, F=11.03, P<0.01). The total interfering scores of male were higher than that of female((11.35±9.10), (10.76±8.84), t=2.18, P=0.03). The total interfering scores of country were higher than that of city((11.86±9.18), (10.88±8.92), t=2.61, P<0.01); the difference of primary school, junior high school and senior high school were significant((10.05±8.76), (11.73±9.17), (10.77±8.76), F=12.088, P<0.01) .The total interfering score from grade four of primary school to grade three of senior high school were(10.0±8.78), (10.01±8.64), (10.19±8.92), (11.43±9.16), (11.40±8.67), (12.58±9.76), (10.32±8.42), (10.19±8.38), (12.48±9.69) respectively(F=5.90, P<0.01). The two grades of the highest total interfering score were grade three of junior high school and grade three of senior high school. Conclusion Obsessive-compulsive symptom are common in children and adolescents.Children and adolescents of male grade three of junior high school or senior high school in the country are more probably interfered by obsessive-compulsive symptom. Key words: Children and Adolescents; Obsessive-compulsive Symptom; Leyton Obsessional Inventory-Child Version