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Statistical differences in physical exercise behavior among junior middle school students with different number of children.
| Categories | The only child (n = 375) | Non-only child (n = 354) | t | p |
|---|---|---|---|---|
| Physical exercise behavior | 35.29 ± 27.08 | 31.92 ± 25.15 | 1.734 | 0.083 |
*p < 0.05, **p < 0.01.
