Total (N = 63,211) | 2018 (N = 18,746) | 2019 (N = 18,212) | 2020 (N = 26,253) | 2021 (N = 25,612) | |
---|---|---|---|---|---|
Screen time | |||||
< 1 h | 5349 (6.02%) | 1315 (7.01%) | 1372 (7.53%) | 1222 (4.65%) | 1440 (5.62%) |
1 h | 12,172 (13.70%) | 3144 (16.77%) | 2828 (15.53%) | 2803 (10.68%) | 3397 (13.26%) |
2 h | 26,239 (29.54%) | 5903 (31.49%) | 5726 (31.44%) | 7234 (27.55%) | 7376 (28.80%) |
3 h | 20,070 (22.60%) | 4045 (21.58%) | 3954 (21.71%) | 6105 (23.25%) | 5966 (23.29%) |
4 or more hours | 24,993 (28.14%) | 4339 (23.15%) | 4332 (23.79%) | 8889 (33.86%) | 7433 (29.02%) |
P value compared to each previous year | – | – | < 0.0001 | < 0.0001 | < 0.0001 |
PWBIS1 (mean) | 0.936 | 0.843 | 0.839 | 1.031 | 1.029 |
P value compared to each previous year | – | – | 0.0641 | < 0.0001 | 0.0018 |
PWBIS2 (%) | 48.6% | 45.3% | 45.8% | 51.7% | 51.3% |
P value compared to each previous year | – | – | 0.284 | < 0.0001 | 0.385 |