Research Article
Physical Activity and Sedentary Behaviors of Urban Chinese Children: Grade Level Prevalence and Academic Burden Associations
Table 1
Demographic characteristics and sample size for analyses (Shanghai, China 2014).
| Grade | Gender | Weighted | 95% CI | Subgroup count |
| 1 | Male | 52.0% | 50.8%–53.2% | 1719 | Female | 48.0% | 46.8%–49.2% | 1587 | 2 | Male | 51.2% | 49.8%–52.6% | 2381 | Female | 48.8% | 47.4%–50.2% | 2270 | 3 | Male | 51.1% | 49.7%–52.6% | 2409 | Female | 48.9% | 47.4%–50.3% | 2301 | 4 | Male | 51.6% | 50.1%–53.1% | 2745 | Female | 48.4% | 46.9%–49.9% | 2578 | 5 | Male | 51.9% | 51.2%–52.6% | 2808 | Female | 48.1% | 47.4%–48.8% | 2603 | 6 | Male | 51.4% | 49.7%–53.2% | 2017 | Female | 48.6% | 46.8%–50.3% | 1905 | 7 | Male | 48.5% | 46.9%–50.1% | 2408 | Female | 51.5% | 49.9%–53.1% | 2559 | 8 | Male | 49.7% | 48.9%–50.5% | 2466 | Female | 50.3% | 49.5%–51.1% | 2498 | 9 | Male | 49.8% | 46.6%–53.0% | 1229 | Female | 50.2% | 47.0%–53.4% | 1241 | 10 | Male | 49.4% | 46.6%–52.2% | 2011 | Female | 50.6% | 47.8%–53.4% | 2059 | 11 | Male | 48.0% | 45.8%–50.2% | 1586 | Female | 52.0% | 49.8%–54.2% | 1718 | 12 | Male | 48.5% | 45.0%–52.0% | 1124 | Female | 51.5% | 48.0%–55.0% | 1194 |
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Note. Sample size = 48,118. are weighted according to student populations by grade level and schools in Shanghai.
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