Table 1 Demographic features of participants
| 听 | Dataset 1(N鈥�=鈥�62909) | Dataset 2 (N鈥�=鈥�2989) | p-value |
|---|---|---|---|
N (%) | N (%) | ||
Age (Years) | 14.3鈥壜扁��2.0 (mean鈥壜扁�塖.D.) | 听 | 听 |
Gender | 听 | 听 | 0.261 |
鈥傿辞测蝉 | 31,048 (49.4%) | 1511 (50.6%) | 听 |
鈥僄颈谤濒蝉 | 31,861 (50.6%) | 1478 (49.4%) | 听 |
Grade | 听 | 听 | 听 |
鈥僇unior school | 43,363 (68.9%) | 听 | 听 |
鈥僅igh school | 19,546 (31.3%) | 听 | 听 |
Residence | 听 | 听 | 听 |
鈥僐耻谤补濒 | 41,854 (66.5%) | 听 | 听 |
鈥僓谤产补苍 | 21,055 (33.5%) | 听 | 听 |
Only child | 13,867 (22.0%) | 听 | 听 |
Left-behind children | 22,055 (35.1%) | 听 | 听 |
Family type: Nuclear | 50,196 (79.8%) | 听 | 听 |
Mother smoking | 2491 (4.0%) | 听 | 听 |
Father smoking | 42,274 (67.2%) | 听 | 听 |
Resilience | 22.6鈥壜扁��7.0 (mean鈥壜扁�塖.D.) | 听 | 听 |