Table 1 Sleep duration among different population groups
From: Social-biological influences on sleep duration among adult residents of Northeastern China
Characteristics | N (%) | Sleep duration(h) \( \overline{x} \)± s | F | P |
|---|---|---|---|---|
Sex | ||||
Male | 10,337 (48.2) | 7.26±1.491 | 1.83 | 0.067 |
Female | 11,098 (51.8) | 7.22±1.597 | ||
Age | ||||
Young | 9043 (42.2) | 7.50±1.331 | 353.95 | < 0.001 |
Middle age | 8277 (38.6) | 6.90±1.557 | ||
Elderly | 4115 (19.2) | 6.86±1.777 | ||
Ethnicity | ||||
Han | 19,865 (92.7) | 7.25±1.543 | 3.47 | 0.001 |
Others | 1570 (7.3) | 7.10±1.458 | ||
Place of residence | ||||
Urbanite | 11,152 (52.0) | 7.14±1.447 | 9.21 | < 0.001 |
Countryside | 10,283 (48.0) | 7.37±1.623 | ||
Marital status | ||||
Marriage /Cohabitation | 18,316 (85.4) | 7.22±1.524 | 65.44 | < 0.001 |
Unmarried | 1693 (7.9) | 7.57±1.344 | ||
Divorce/Divorcee/Separated spouse | 388 (1.8) | 6.83±1.589 | ||
Widow/ Widower | 1038 (4.8) | 6.63±1.854 | ||
Occupation | ||||
Manual worker | 12,046 (56.2) | 7.30±1.560 | 22.19 | < 0.001 |
Mental worker | 4211 (19.6) | 7.27±1.246 | ||
Others | 5178 (24.2) | 7.01±1.672 | ||
Educational level | ||||
Primary school or below | 6236 (29.1) | 7.11±1.816 | 19.89 | < 0.001 |
Junior middle school | 6125 (28.6) | 7.32±1.488 | ||
Senior middle school | 5559 (25.9) | 7.18±1.433 | ||
Undergraduate or above | 3515 (16.4) | 7.34±1.190 | ||
Average monthly income (¥) | ||||
< 500 | 4304 (20.1) | 7.18±1.726 | 7.55 | 0.001 |
500- | 14,149 (66.0) | 7.22±1.610 | ||
3000- | 2140 (10.0) | 7.35±1.464 | ||