Table 3. Parental descriptive characteristics.
| Sweden | China | |||||||
|---|---|---|---|---|---|---|---|---|
| Mother | Father | Mother | Father | |||||
| Total (N = 145) | Missing (n) | Total (N = 140) | Missing (n) | Total (N = 69) | Missing (n) | Total (N = 61) | Missing (n) | |
| Age (years), mean (SD) | 34.8 (4.7)* | 37.2 (5.5)* | 6 | 29.1 (3.6) | 1 | 31.6 (4.8) | 2 | |
| Weight (kg), mean (SD) | 82.3 (20.0)* | 1 | 89.4 (15.8)* | 6 | 60.8 (10.1) | 79.0 (11.6) | 1 | |
| Height (cm), mean (SD) | 167.0 (7.1)* | 2 | 180.4 (6.4)* | 7 | 160.0 (5.1) | 180.4 (6.4) | 1 | |
| BMI (kg/m2), mean (SD) | 29.5 (7.0)* | 2 | 27.6 (4.8)* | 11 | 23.9 (3.6) | 26.4 (3.6) | 1 | |
| Educational level, n (%) | 5 | 4 | 1 | 1 | ||||
| High | 105 (75) | 102 (75) | 49 (72) | 46 (77) | ||||
| Low | 35 (25) | 34 (25) | 19 (28) | 14 (23) | ||||
| Valid days,mean (SD) | 6.7 (0.9)* | 6.7 (0.9)* | 5.4 (1.8) | 5.6 (1.7) | ||||
| VM CPM,mean (SD) | 2625 (752)* | 2233 (749)* | 2042 (821) | 1588 (754) | ||||
*Significant difference (p < 0.05) between Sweden and China.