P09-03 Costing the economic burden of sedentary behaviors in France

Abstract Background There is strong evidence showing that sedentary behaviour (SB) increase the risk to develop several chronic diseases and to premature death (Chau et al., 2015). A dose response relation is observed with a more marked risk when people spend more than 7 hours/day in sitting position (Ekelund et al., 2019). The study INCA 3 on the lifestyle habits of French population indicated that 40% of people between 18 and 79 years had a high risk for health conditions with more than 7 hours of daily SB (ANSES, 2017). The economic consequences of this risk have never been evaluated. The aim of this study was to estimate the economic burden of SB-related diseases in France. Methods From meta-analysis or large cohorts based on individual SB time, we identified relative risk (RR) to develop cardiovascular disease (CVD), colon cancer, breast cancer and all-causes premature death after co-variables adjustments including physical activity. From RR and prevalence of SB time in France, a population attributable fraction approach was used to estimate the yearly number of cases for each disease. Data from the national health insurance were used to calculate the annual average costs per case for each disease. Then, disease-specific and total health-care costs attributable to prolonged SB time were calculated. Indirect costs for private sector and households were calculated in a second stage. Results In France, 66 528 premature deaths/year appear related to a daily SB time ≥ 8,6 hours Each year prolonged SB cost 559 millions € for the national health insurance, including 359 millions € for CVD (≥ 10 hours of daily SB), 170 millions € for breast cancer (≥ 6 hours of daily SB), and 31 millions € for colon cancer (≥ 5 hours of TV/day). Conclusions These preliminary results showed that many deaths could be avoided by reducing prolonged SB prevalence in France. Moreover, direct health-care costs attributable to SB related diseases represent a high economic burden for the French health system. To address this issue, strong responses should be implemented to tackle SB, complementary to physical activity promotion.


Background
There is strong evidence showing that sedentary behaviour (SB) increase the risk to develop several chronic diseases and to premature death (Chau et al., 2015). A dose response relation is observed with a more marked risk when people spend more than 7 hours/day in sitting position (Ekelund et al., 2019). The study INCA 3 on the lifestyle habits of French population indicated that 40% of people between 18 and 79 years had a high risk for health conditions with more than 7 hours of daily SB (ANSES, 2017). The economic consequences of this risk have never been evaluated. The aim of this study was to estimate the economic burden of SB-related diseases in France. Methods From meta-analysis or large cohorts based on individual SB time, we identified relative risk (RR) to develop cardiovascular disease (CVD), colon cancer, breast cancer and all-causes premature death after co-variables adjustments including physical activity. From RR and prevalence of SB time in France, a population attributable fraction approach was used to estimate the yearly number of cases for each disease. Data from the national health insurance were used to calculate the annual average costs per case for each disease. Then, disease-specific and total health-care costs attributable to prolonged SB time were calculated. Indirect costs for private sector and households were calculated in a second stage.

Results
In France, 66 528 premature deaths/year appear related to a daily SB time ! 8,6 hours Each year prolonged SB cost 559 millions E for the national health insurance, including 359 millions E for CVD (! 10 hours of daily SB), 170 millions E for breast cancer (! 6 hours of daily SB), and 31 millions E for colon cancer (! 5 hours of TV/day).

Conclusions
These preliminary results showed that many deaths could be avoided by reducing prolonged SB prevalence in France. Moreover, direct health-care costs attributable to SB related diseases represent a high economic burden for the

Background
Sedentary behavior (SB) in children is related to different health outcomes such as overweight and cardio-metabolic diseases. These negative effects have been widely supported by evidence. However, no data on sedentary time (ST) among Moroccan children has been available, yet. Therefore, the present study examined gender and grade differences in objectively measured sedentary behavior in a sample of Moroccan primary school children and adolescents.

Methods
In total, 172 Moroccan children/adolescents aged between 8 to 14 years old (mean age = 10.92 AE 1.55 years; 49.4% were boys) completed the survey. School grade, gender, height, and weight were collected by questionnaires and ST objectively measured using a tri-axial accelerometer (GTX3+). Study required at least 3 valid weekdays and 1 weekend day with? 600 min/day total wear time. Two-way analysis of covariance and logistic regression analyses, adjusted for BMI z-score and accelerometer wear time, were used to examine gender and grade differences in ST.

Conclusion
ST increases between ages 11 and 14 years. On week days children and adolescents spent sitting longer than at weekends. Girls and adolescents were identified as potential risk groups. This report on ST presents valuable information for designing and implementing interventions to decrease time spent in SB among children during class time.