Table 1.
Descriptive information of the study participants.
| Total | Male | Female | t/χ2 | p | |
|---|---|---|---|---|---|
| Number of participants (%) | 3270 (100) | 2021 (61.8) | 1249 (38.2) | - | - |
| Person-day | 37,361 | 23,225 | 14,136 | - | - |
| Wearing time/day, hour; mean (SD) | 22.69 (0.98) | 22.67 (1.00) | 22.71 (0.94) | −4.69 *** | 0.000 |
| Monitored duration, day; mean (SD) | 11.43 (4.15) | 11.49 (4.11) | 11.32 (4.20) | 1.17 | 0.244 |
| Age group (%) | |||||
| 18–29 | 1763 (53.9) | 1089 (53.9) | 674 (54.0) | 4.86 | 0.182 |
| 30–39 | 1171 (35.8) | 723 (35.8) | 448 (35.9) | ||
| 40–49 | 247 (7.6) | 145 (7.2) | 102 (8.2) | ||
| Above 50 | 89 (2.7) | 64 (3.2) | 25 (2.0) | ||
| BMI level (%) | |||||
| Underweight | 757 (23.1) | 376 (18.6) | 381 (30.5) | 104.04 *** | 0.000 |
| Normal | 2175 (66.5) | 1386 (68.6) | 789 (63.2) | ||
| Overweight | 327 (10.0) | 258 (12.8) | 69 (5.5) | ||
| Obese | 11 (0.3) | 1 (0.0) | 10 (0.8) | ||
| Sedentary time/day, minute; mean (SD) | 576.89 (146.93) | 585.56 (149.22) | 562.65 (141.94) | 14.84 *** | 0.000 |
*** p < 0.001.