Table 1.
Baseline characteristics of the participants according to daytime napping.
| Daytime napping, no. (%) |
p-Value | ||
|---|---|---|---|
| No | Yes | ||
| 9613 (71.4) | 3852 (28.6) | ||
| Age | |||
| <65 | 6794 (70.7) | 1631 (42.3) | <0.001 |
| ≥65 | 2819 (29.3) | 2221 (57.7) | |
| Sex | |||
| Men | 3789 (39.4) | 2098 (54.5) | <0.001 |
| Women | 5824 (60.6) | 1754 (45.5) | |
| Education | |||
| Lower | 4019 (41.8) | 1819 (47.2) | <0.001 |
| Higher | 5594 (58.2) | 2033 (52.8) | |
| Marital status | |||
| Single | 375 (3.9) | 161 (4.2) | |
| Married | 7795 (81.1) | 3070 (79.7) | |
| Othersa | 1443 (15.0) | 621 (16.1) | |
| Smoking status | |||
| Current smokers | 764 (7.9) | 329 (8.5) | <0.001 |
| Former smokers | 3841 (40.0) | 1873 (48.6) | |
| Never smoked | 5008 (52.1) | 1650 (42.8) | |
| Alcohol intakeb | |||
| ≤3.5 | 4850 (50.5) | 1975 (51.3) | |
| >3.5 | 4763 (49.5) | 1877 (48.7) | |
| Physical activity | |||
| Inactive | 2287 (23.8) | 1223 (31.7) | <0.001 |
| Moderately inactive | 2938 (30.6) | 1052 (27.3) | |
| Moderately active | 2473 (25.7) | 846 (22.0) | |
| Active | 1915 (19.9) | 731 (19.0) | |
| Hypnotic drug use | |||
| No | 9458 (98.4) | 3762 (97.7) | <0.01 |
| Yes | 155 (1.6) | 90 (2.3) | |
| Pre-existing diseases | |||
| No | 7188 (74.8) | 2656 (69.0) | <0.001 |
| Yes | 2425 (25.2) | 1196 (31.0) | |
a
Widowed, separated or divorced.
b
Units/week, divided by median.