Table 2.
Descriptive Statistics of Sleep Measures
| Full Analytic Sample |
Race |
Gender |
||||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Min | Max | White | Biracial | Male | Female | |
|
| ||||||||
| Latency | 2.04 | 1.87 | 0 | 6 | 2.14 | 1.89 | 2.21 | 1.91 |
| Efficiency | 79.87 | 11.06 | 45 | 100 | 79.57 | 80.33 | 79.23 | 80.40 |
| Total minutes | 520.91 | 101.40 | 120 | 800 | 524.57 | 515.37 | 525.85 | 516.82 |
| TST | 413.57 | 87.28 | 75 | 650 | 414.75 | 411.78 | 415.00 | 412.38 |
| WASO | 90.44 | 55.33 | 0 | 250 | 92.92 | 86.69 | 92.26 | 88.94 |
| Awakening frequency | 22.72 | 9.33 | 0 | 51 | 22.70 | 22.76 | 23.27 | 22.27 |
| Average awakening length | 1.95 | 0.60 | 0 | 4 | 1.98 | 1.90 | 1.95 | 1.95 |
| Movement index | 17.82 | 8.74 | 0 | 45 | 17.99 | 17.56 | 18.51 | 17.25 |
| Fragmentation index | 11.65 | 7.95 | 0 | 38 | 10.84 | 12.89 | 11.39 | 11.87 |
| Sleep frag. index | 29.47 | 13.82 | 0 | 70 | 28.79 | 30.50 | 30.02 | 29.02 |
| Poor sleep factor score | 0.01 | 0.88 | −2 | 3 | 0.04 | −0.02 | 0.07 | −0.03 |
Source: Community Connections and Family Wellness Study sleep data.