Table 1.
Sample characteristics
| Characteristic N = 224 | Total Sample N = 224 | 0 naps N = 66 | 1 nap N = 44 | 2-3 naps N = 59 | 4 naps + N = 55 | p-value |
|---|---|---|---|---|---|---|
| Age mean (SD) | 59.9 (7.2) | 60.1 (6.5) | 58.2 (7.1) | 59.7 (7.7) | 61.5 (7.4) | 0.18 |
| Depressive Symptoms (CES-D) Mean (SD) | 5.3 (6.6) | 4.7 (7.1) | 4.3 (6.3) | 6.3 (5.9) | 6.0 (6.8) | 0.01 |
| Race n (%) | ||||||
| African American | 97 (43.3) | 31 (13.8) | 15 (6.7) | 21 (9.4) | 30 (13.4) | 0.11 |
| Caucasian/Asian | 127 (56.7) | 35 (15.6) | 29 (12.9) | 38 (17.0) | 25 (11.2) | |
| Gender n (%) | ||||||
| Male | 113 (50.4) | 33 (14.7) | 22 (9.8) | 27 (12.1) | 31 (13.8) | 0.73 |
| Female | 111 (49.6) | 29 (12.9) | 22 (9.8) | 32 (14.3) | 24 (10.7) | |
| Employment n (%) | ||||||
| Full-time | 103 (46.0) | 33 (14.7) | 23 (10.3) | 28 (12.5) | 19 (8.5) | 0.51 |
| Part-time | 33 (14.7) | 8 (3.6) | 5 (2.2) | 10 (4.5) | 10 (4.5) | |
| Retired | 58 (25.9) | 17 (7.6) | 9 (4.0) | 17 (7.6) | 15 (6.7) | |
| Other | 30 (13.0) | 8 (3.6) | 7 (3.1) | 4 (1.8) | 11 (4.9) | |
| General Health n (%) | ||||||
| Excellent | 42 (18.8) | 17 (7.6) | 9 (4.0) | 11 (4.9) | 5 (2.2) | 0.11 |
| Very good | 81 (36.2) | 22 (9.9) | 18 (8.1) | 22 (9.9) | 19 (8.5) | |
| Good | 82 (36.6) | 23 (10.3) | 11 (4.9) | 26 (11.7) | 22 (9.9) | |
| Fair | 16 (7.1) | 4 (1.8) | 5 (2.2) | 0 (0) | 7 (3.1) | |
| Poor | 2 (0.9) | 0 (0) | 1 (0.4) | 0 (0) | 1 (0.4) | |
| Self-report Physical Activity n (%) | ||||||
| Sedentary | 18 (8.0) | 8 (3.6) | 3 (1.3) | 4 (1.8) | 3 (1.3) | 0.81 |
| Mild | 60 (26.8) | 15 (6.7) | 9 (4.0) | 17 (7.6) | 19 (8.5) | |
| Moderate | 123 (54.9) | 35 (15.7) | 27 (12.1) | 33 (14.8) | 28 (12.6) | |
| Strenuous | 22 (9.8) | 7 (3.1) | 5 (2.2) | 5 (2.2) | 5 (2.2) | |
| Smoking Status n (%) | ||||||
| Current | 19 (8.5) | 6 (2.7) | 1 (0.4) | 8 (3.6) | 4 (1.8) | 0.37 |
| Former | 106 (47.3) | 27 (12.1) | 23 (10.3) | 26 (11.6) | 30 (13.4) | |
| Never | 99 (44.2) | 33 (14.7) | 20 (8.9) | 25 (11.2) | 21 (9.4) |
p-values for continuous measures are from tests for linear trend based on ANOVA, whereas p-values for categorical measures are based on χ2 analysis.