[Agreement between two cutoff points for physical activity and associated factors in young individuals]. / Concordância entre dois pontos de corte para atividade física e fatores associados em jovens.
Rev Paul Pediatr
; 32(3): 215-22, 2014 Sep.
Article
em Pt
| MEDLINE
| ID: mdl-25479852
OBJECTIVE: To analyze the agreement between two cutoff points for physical activity (300 and 420 minutes/week) and associated factors in youth. METHODS: The study enrolled 738 adolescents of Londrina city, Paraná, Southern Brazil. The following variables were collected by a self report questionnaire: presence of moderate to vigorous physical activity, gender, age, father and mother education level, with whom the adolescent lives, number of siblings, physical activity perception, participation in Physical Education classes, facilities available to physical activity practice and sedentary behavior. Prevalence of physical activity between criterions were compared using McNemar test and the agreement was analysed by Kappa index. Multivariate analysis was performed using Poisson regression with robust variance adjustment was applied. RESULTS: The prevalence for physical activity was significantly different: 22,3% for 300 minutes/week and 12,8% for 420 minutes/week (p<0,05), but the agreement was strong (k=0,82, p<0,001). The variables gender, father education, physical activity perception and sedentary behavior were associated to physical activity in both analyzed criteria. Participation in Physical Education class and facilities available to physical activity practice were associated to physical activity only with 300 minutes/week cutoff point. CONCLUSION: Caution is suggested regarding cutoffs use for physical activity in epidemiological studies, considering they can result in differences in prevalence of physical activity and its associated factors.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Educação Física e Treinamento
/
Exercício Físico
Tipo de estudo:
Observational_studies
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Prevalence_studies
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Risk_factors_studies
Limite:
Adolescent
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Child
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Female
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Humans
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Male
Idioma:
Pt
Revista:
Rev Paul Pediatr
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil