Mohsen Hasani, Reza Ahmadi, Omid Saed
Psychometric properties and factor structure of the Repetitive Thinking Questionnaire: Persian versions of the RTQ-31 and RTQ-10
Trends in psychiatry and psychotherapy
observational studies found association television viewing child adolescent adiposity assess effects reducing television videotape video game use changes adiposity physical activity dietary intake randomized controlled schoolbased trial conducted september 1996 april 1997 two sociodemographically scholastically matched public elementary schools san jose calif 198 third fourthgrade students given parental consent participate 192 students mean age 89 years completed study children 1 elementary school received 18lesson 6month classroom curriculum reduce television videotape video game use changes measures height weight triceps skinfold thickness waist hip circumferences cardiorespiratory fitness selfreported media use physical activity dietary behaviors parental report child family behaviors primary outcome measure body mass index calculated weight kilograms divided square height meters compared controls children intervention group statistically significant relative decreases body mass index intervention vs control change 1838 1867 kgm2 vs 1810 1881 kgm2 respectively adjusted difference 045 kgm2 95 confidence interval ci 073 017 p 002 triceps skinfold thickness intervention vs control change 1455 1547 mm vs 1397 1646 mm respectively adjusted difference 147 mm 95 ci 241 054 p002 waist circumference intervention vs control change 6048 6357 cm vs 5951 6473 cm respectively adjusted difference 230 cm 95 ci 327 133 p001 waisttohip ratio intervention vs control change 083 083 vs 082 084 respectively adjusted difference 002 95 ci 003 001 p001 relative controls intervention group changes accompanied statistically significant decreases childrens reported television viewing meals eaten front television statistically significant differences groups changes highfat food intake moderatetovigorous physical activity cardiorespiratory fitness reducing television videotape video game use may promising populationbased approach prevent childhood obesity