Table 1 Descriptive characteristics of the samples, HBSC study, Czech Republic 2002–2014
2002 | 2006 | 2010 | 2014 | |||||
|---|---|---|---|---|---|---|---|---|
Boys | Girls | Boys | Girls | Boys | Girls | Boys | Girls | |
(n=2345) | (n=2567) | (n=2332) | (n=2297) | (n=2008) | (n=2113) | (n=2183) | (n=2405) | |
% | % | % | % | % | % | % | % | |
Chronological agea | ||||||||
11 years | 34.1 | 33.1 | 31.4 | 31.2 | 32.6 | 30.6 | 29.9 | 30.3 |
13 years | 32.5 | 33.8 | 33.5 | 33.9 | 31.4 | 35.2 | 33.9 | 34.4 |
15 years | 33.4 | 33.1 | 35.0 | 34.9 | 36.0 | 34.2 | 36.2 | 35.3 |
Family affluence | ||||||||
Low | 34.2 | 40.5 | 25.7 | 30.3 | 13.1 | 17.0 | 32.4 | 34.4 |
Medium | 56.5 | 53.0 | 54.9 | 55.9 | 54.2 | 53.3 | 44.3 | 45.4 |
High | 9.3 | 6.5 | 19.4 | 13.8 | 32.7 | 29.7 | 23.3 | 20.2 |
Weight status | ||||||||
Normal weight | 81.6 | 91.7 | 78.0 | 83.8 | 73.8 | 88.1 | 74.9 | 87.9 |
Overweight/obese | 18.4 | 8.3 | 22.0 | 16.2 | 26.2 | 11.9 | 25.1 | 12.1 |
Daily MVPA | ||||||||
≥ 60 min | 32.2 | 23.1 | 27.6 | 18.0 | 28.1 | 18.9 | 25.6 | 18.9 |
Daily screen time | ||||||||
> 2 h per weekday | 75.3 | 85.9 | 87.9 | 88.8 | 61.3 | 73.4 | 81.7 | 77.0 |
> 2 h per weekend day | 78.3 | 65.0 | 88.6 | 79.8 | 89.8 | 84.7 | 91.7 | 84.0 |