Table 1 Demographic characteristics of present study cohort of college students
Variables | Frequency (n = 1340) (%) | Smoking behaviour | ||
|---|---|---|---|---|
Never smoke (n = 1037) | Have ever smoked (n = 303) | χ2 | ||
Gender | 366.56** | |||
 Male | 37.1 | 243 (48.89%) | 254 (51.11%) |  |
 Female | 62.9 | 794 (93.86%) | 49 (6.14%) |  |
Majors | 201.24** | |||
 Pedagogy | 29.2 | 356 (91.05%) | 35 (8.95%) |  |
 Medicine | 23.9 | 243 (75.94%) | 77 (24.06%) |  |
 Literature and art | 3.2 | 39 (90.70%) | 4 (9.30%) |  |
 Engineering | 1.3 | 11 (61.11%) | 7 (38.89%) |  |
 Sports | 23.4 | 159 (50.64%) | 155 (49.36%) |  |
 Nursing | 19.0 | 229 (90.16%) | 25 (9.84%) |  |
Ethnicity | 10.45* | |||
 Han | 55.8 | 580 (77.54%) | 168 (22.46%) |  |
 Yi | 19.4 | 206 (79.23) | 54 (20.77%) |  |
 Hani | 4.3 | 35 (60.34%) | 23 (39.66%) |  |
 Other minority | 20.4 | 216 (78.83%) | 58 (21.17%) |  |
Socioeconomic status (SES) | 11.43** | |||
 < 3000 yuan | 31.6 | 343 (81.09%) | 80 (18.91%) |  |
 3000–10,000 yuan | 53.8 | 559 (77.53%) | 162 (22.47%) |  |
 > 10000 yuan | 14.6 | 135 (68.88%) | 61 (31.12%) |  |
Family environment (FE) | ||||
 Single-parent household | 11.0 | 115 (77.70%) | 33 (22.30%) | 0.01 |
 Two-parent household | 89.0 | 922 (77.35%) | 270 (22.65%) |  |
 Singleton family | 17.0 | 161 (70.61%) | 67 (29.39%) | 7.21** |
 Non-singleton family | 83.0 | 876 (78.78%) | 236 (21.22%) |  |
Domicile place | 3.80 | |||
 Countryside | 82.6 | 868 (78.41%) | 239 (21.59%) |  |
 Town | 17.4 | 169 (72.53%) | 64 (27.47%) |  |
Peer influence | 105.34** | |||
 With smoking friends | 70.4 | 658 (69.78%) | 285 (30.22%) |  |
 Without smoking friends | 29.6 | 379 (95.47%) | 18 (4.53%) |  |