期刊
INTERNATIONAL JOURNAL OF HEALTH POLICY AND MANAGEMENT
卷 6, 期 9, 页码 519-528出版社
KERMAN UNIV MEDICAL SCIENCES
DOI: 10.15171/ijhpm.2017.09
关键词
School Health Promotion; Health Behavior; Snack; Nutrition Policy; Adolescent
资金
- Tehran University of Medical Sciences (TUMS), Tehran, Iran [9021460007]
Background: Well-informed interventions are needed if school-based health promotion is to be effective. Among other aims, the Iranian Health Promoting School (IHPS) program that was launched in 2011, has an important aim of promoting dietary behaviors of adolescents. The present study, therefore, aimed to investigate the factors affecting unhealthy snacking of adolescents and provide evidence for a more effective IHPS program. Methods: In a cross-sectional study design, 1320 students from 40 schools in Kerman city were selected using a proportional stratified random sampling method. A modified qualitative Food Frequency Questionnaire (FFQ) was used to gather data about unhealthy snacking behavior. Data about intrapersonal and environmental factors were obtained using a validated and reliable questionnaire. A mixed-effects negative-binomial regression model was used to analyze the data. Results: Taste and sensory perception (prevalence rate ratio [PRR] = 1.18; 95% CI: 1.09-1.27), being a male (PRR = 1.20; 95% CI: 1.05-1.38) and lower nutritional knowledge (PRR = 0.96; 95% CI: 0.91-0.99) were associated with higher weekly unhealthy snaking. Perceived self-efficacy (PRR = 0.95; 95% CI: 0.91-1.00) negatively influenced the frequency of unhealthy snaking, with this approaching significance (P < .06). In case of environmental factors, high socio-economic status (SES) level (PRR = 1.45; 95% CI: 1.26-1.67), single-parent family (PRR = 1.14; 95% CI: 1.01-1.30), more social norms pressure (PRR = 1.08; 95% CI: 1.01-1.17), pocket money allowance (PRR = 1.21; 95% CI: 1.09-1.34), easy accessibility (PRR = 1.06; 95% CI: 1.01-1.11), and less perceived parental control (PRR = 0.96; 95% CI: 0.92-0.99) all had a role in higher consumption of unhealthy snacks. Interestingly, larger school size was associated with less unhealthy snacking (PRR = 0.79; 95% CI: 0.68-0.92). Conclusion: Unhealthy snacking behavior is influenced by individual, socio-cultural and physical-environmental influences, namely by factors relating to poor parenting practices, high SES level, family characteristics, improper social norms pressure, and less knowledge and self-efficacy of students. This evidence can be used to inform a more evidence-based IHPS program through focusing on supportive strategies at the home, school, and local community levels.
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