Table 1.
General data [n (%)]
| Research group (n=63) | Control group (n=50) | t or χ2 | P | |
|---|---|---|---|---|
| Age (years) | 3.8±1.8 | 3.5±1.9 | 0.859 | 0.392 |
| Sex | 0.085 | 0.771 | ||
| Male | 26 (41.27) | 22 (44.00) | ||
| Female | 37 (58.73) | 28 (56.00) | ||
| BMI (kg/cm2) | 13.52±3.05 | 13.76±4.72 | 0.327 | 0.744 |
| Living environment | 0.266 | 0.606 | ||
| Rural | 42 (66.67) | 31 (62.00) | ||
| Urban | 21 (33.33) | 19 (38.00) | ||
| Parental history of smoking | 0.724 | 0.125 | ||
| Yes | 46 (73.02) | 35 (70.00) | ||
| No | 17 (26.98) | 15 (30.00) | ||
| Parental history of alcohol drinking | 0.226 | 0.635 | ||
| Yes | 43 (68.25) | 32 (64.00) | ||
| No | 20 (31.75) | 18 (36.00) | ||
| Family medical history | 0.156 | 0.693 | ||
| Yes | 18 (28.57) | 16 (32.00) | ||
| No | 45 (71.43) | 34 (68.00) | ||
| Delivery mode | 0.225 | 0.635 | ||
| Vaginal delivery | 28 (44.44) | 20 (40.00) | ||
| Caesarean section | 35 (55.56) | 30 (60.00) | ||
| Nationality | 1.080 | 0.299 | ||
| Han nationality | 58 (92.06) | 43 (86.00) | ||
| Minority nationalities | 5 (7.94) | 7 (14.00) |