Table 1 Characteristics of eligible articles and identified studies
Characteristics | n | Percentage |
|---|---|---|
Total number of articles | 252 | |
Language written | ||
Chinese | 202 | 80.2 |
English | 50 | 19.8 |
Location | ||
Mainland China | 233 | 92.5 |
Hong Kong, Macau, or Taiwan | 19 | 7.5 |
Year of publication | ||
2015 ∼2020 | 157 | 62.3 |
2010 ∼ 2014 | 66 | 26.2 |
2005 ∼ 2009 | 21 | 8.3 |
1999 ∼ 2004 | 8 | 3.2 |
Total number of studies | 268 | |
Health issue | ||
Adiposity | 89 | 33.2 |
Myopia | 76 | 28.4 |
Psychological or behavioral problems | 44 | 16.4 |
Cardiometabolic disease risks | 10 | 3.7 |
Poor academic performance | 9 | 3.4 |
Sleep disorder | 9 | 3.4 |
Poor physical fitness | 8 | 3.0 |
Musculoskeletal injury | 8 | 3.0 |
Physical and mental sub-health | 6 | 2.2 |
Miscellaneous issuesa | 9 | 3.4 |
Research design | ||
Cross-sectional | 240 | 89.6 |
Case-control | 14 | 5.2 |
Longitudinal | 12 | 4.5 |
Experimental | 2 | 0.7 |