P5306Changes in health-behaviours of 15-year old girls depend on satisfaction with the prophylactic intervention program. Healthy Me Study

Abstract

Introduction Healthy Me (HM) interventional study was oriented on improvement of physical activity (PA) in 15-year old girls but also included component of eating habits, smoking prevention and personal competencies. Innovative elements of the project involved usage of fitness-band with continuous monitoring of PA and special dedicated smartphone apps. Purpose To assess the effectiveness of 1-year prophylactic intervention with the use of mobile technology in girls between 14 and 15 year of age, in relation to the level of their satisfaction with the program. Methods 1198 girls 14–15 years old from 48 randomly selected schools from all over Poland participated in the HM during 2017/2018 school year. Schools were randomized to full or partial intervention and control group, respectively 636, 277 and 285 girls. Questionnaire data from the beginning and the end of the HM regarding four factors (low PA, eating sweets, smoking and stress level) were analyzed. Mean changes (MC) calculated according to the definition given in table 1 were applied as outcome measure. Satisfaction with the program was assessed after 1 year of participation in the HM as low, average and high. General linear models with main effects were estimated and adjusted for initial level of each factor. Results At the beginning of the study 87% participants did not fulfill criteria for recommended PA, 9% smoked during last 30 days and 67% ate sweets more than ones per week. Mean stress level was 6.92±2.92 points. For the entire study group, the only significant change after 1 year intervention was lower frequency of eating sweets (p=0,007). However, the higher satisfaction with the study resulted in the significantly higher effectiveness of HM intervention (table 1). Mean changes in the analyzed factors Analyzed factor Range Mean change in entire group (SE) Mean change by level of satisfaction p1 p2 low (SE) average (SE) high (SE) Physical activity (MVPA) 0–7 days −0.076 (0.063) −0.396 (0.137) −0.147 (0.068) 0.261 (0.119) 0.001 0.068 Smoking-past 0 – never 0.039 (0.028) 0.270 (0.066) 0.034 (0.033) −0.004 (0.057) 0.002 0.067 6–30 days or more Eating sweets 0 – never −0.296 (0.045) −0.047 (0.101) −0.285 (0.050) −0.313 (0.086) 0.069 0.016 6 – every day more than once Stress Cohen scale 0–16 points 0.105 (0.090) 0.498 (0.211) 0.138 (0.105) −0.424 (0.183) 0.003 0.823 SE: standard error; MVPA: moderate to vigorous physical activity; p1: main effect of the level of satisfaction; p2: main effect of the intervention group. Conclusion Program that was dedicated for improvement of PA in teenage girls could also profitably influence other factors related to health behaviours and stress level in this group but intervention must be perceived by participants as rewarding. It seems, that attractiveness of interventional program design, increased by mobile technologies, is key for its effectiveness for teens. Acknowledgement/Funding National Health Program, Ministry of Health

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