Table 1 Demographic characteristics of 134 ICPP patients (case group) and 210 controls
Variables | Case group (N, %) | Control group (N, %) | t/F value | P value |
|---|---|---|---|---|
Patient characteristics | ||||
Female sex | 130 (97.0) | 195 (2.9) | 2.710 | 0.100 |
Age (years) | 9.05 ± 1.07 | 8.84 ± 1.02 | 1.783 | 0.076 |
Height (cm) | 139.84 ± 8.36 | 133.82 ± 8.13 | 6.624 | < 0.001 |
Weight (kg) | 34.73 ± 8.60 | 30.37 ± 7.13 | 5.093 | < 0.001 |
Children per family | 40.970 | < 0.001 | ||
One-child | 80 (59.7) | 53 (25.2) | ||
Multiple-child | 54 (40.3) | 157 (74.8) | ||
Caregivers | 3.731 | 0.053 | ||
Parents | 125 (93.3) | 182 (86.7) | ||
Grandparents | 9 (6.7) | 28 (13.3) | ||
Caregiver characteristics | ||||
Living environment | 0.037 | 0.847 | ||
Urban | 127 (94.8) | 200 (95.2) | ||
Rural | 7 (5.2) | 10 (4.8) | ||
Educational level | 43.682 | < 0.001 | ||
Primary school | 8 (6.0) | 34 (16.2) | ||
Middle school | 11 (8.2) | 54 (25.7) | ||
High school | 56 (41.8) | 87 (41.4) | ||
University or higher | 59 (44.0) | 35 (16.7) | ||
Employment status | 6.833 | 0.009 | ||
Employed | 86 (64.2) | 162 (77.1) | ||
Unemployed/housewives | 48 (35.8) | 48 (22.9) | ||
Monthly income (CNY) | 62.269 | < 0.001 | ||
< 5000 | 18 (13.4) | 83 (39.5) | ||
5000–10,000 | 46 (34.3) | 97 (46.2) | ||
> 10 000 | 70 (52.2) | 30 (14.3) | ||