TABLE 1.
Baseline descriptive characteristics of young adults in the InSight cohort1
| Sedentary time, h/d | MVPA, min/d | ||||
|---|---|---|---|---|---|
| <8 (n = 29) | ≥8 (n = 42) | <30 (n = 30) | ≥30 (n = 41) | Overall (n = 71) | |
| Age, y | 27.2 ± 4.4 | 26.7 ± 4.7 | 27.8 ± 5.4 | 26.3 ± 3.7 | 26.9 ± 4.5 |
| Women, % | 45 | 65 | 70 | 46 | 56 |
| Nonwhite, % | 28 | 10* | 17 | 17 | 12 |
| Body weight, kg | 66.0 ± 10.1 | 67.0 ± 10.5 | 64.9 ± 10.3 | 67.9 ± 10.2 | 66.6 ± 10.3 |
| BMI, kg/m2 | 22.2 ± 2.4 | 23.0 ± 2.3 | 22.7 ± 2.4 | 22.6 ± 2.4 | 22.6 ± 2.4 |
| Waist circumference, cm | 75.8 ± 6.4 | 76.4 ± 7.5 | 75.6 ± 6.2 | 76.6 ± 7.7 | 76.2 ± 7.1 |
| Hip circumference, cm | 93.8 ± 4.8 | 96.4 ± 5.4* | 95.2 ± 5.6 | 95.4 ± 5.1 | 95.3 ± 5.3 |
| Waist-to-hip ratio | 0.8 ± 0.0 | 0.8 ± 0.1 | 0.8 ± 0.0 | 0.8 ± 0.1 | 0.8 ± 0.1 |
| Fat mass, kg | 12.6 ± 4.1 | 16.9 ± 5.4*** | 16.6 ± 5.5 | 14.0 ± 5.0* | 15.1 ± 5.3 |
| Fat mass, % | 19.4 ± 6.9 | 25.6 ± 8.0** | 26.0 ± 8.1 | 21.0 ± 7.5** | 23.1 ± 8.1 |
| Fat-free mass, kg | 53.4 ± 10.8 | 50.2 ± 11.3 | 48.3 ± 11.0 | 53.8 ± 10.7* | 51.5 ± 11.1 |
| Sedentary time, h/d | 6.9 ± 0.8 | 9.5 ± 0.8 | 8.7 ± 1.5 | 8.3 ± 1.5 | 8.5 ± 1.5 |
| MVPA, h/d | 0.5 ± 0.3 | 0.4 ± 0.3* | 0.1 ± 0.1 | 0.6 ± 0.2 | 0.4 ± 0.3 |
| Reported energy intake,2 kcal/d | 1892.8 ± 1071.0 | 1574.9 ± 882.7 | 1345.6 ± 732.4 | 1969.7 ± 1043.4** | 1704.9 ± 969.1 |
1Values are means ± SDs unless otherwise noted. ***,**,*Significant results indicated from independent-sample t tests for continuous variables and chi-square tests for categoric variables across the sedentary time groups and MVPA groups: ***P < 0.001, **P < 0.01, *P < 0.05. MVPA, moderate-to-vigorous physical activity.
2 n = 66 due to missing energy intake data.