Table 1.
Participant Demographics Overall and by Weekday Sleep Duration
| Weekday Sleep Duration (N=569) | ||||||
|---|---|---|---|---|---|---|
| Total | Very Short Sleepers <6 hrs | Short Sleepers ≥ 6-<7 hrs | Recommended Sleepers ≥ 7-≤9 hrs | Long Sleepers >9 hrs | p | |
| Count (%) | 145 (25.5) | 164 (28.8) | 230 (40.4) | 30 (5.3) | ||
| Age (N=569) | 47.6 ± 11.7 | 48.2 ± 12.4 | 46.8 ± 11.1 | 48.0 ±11.6 | 45.7 ± 12.8 | .52 |
| Ethnicity (N=558) | <.001* | |||||
| African American | 356 (63.8) | 74 (20.8) | 103 (28.9) | 156 (43.8) | 23 (6.5) | |
| West Indian/Caribbean | 93 (16.7) | 30 (32.4) | 34 (36.6) | 27 (29.0) | 2 (2.2) | |
| Cape Verdean/African | 66 (11.8) | 13 (19.7) | 17 (25.8) | 33 (50.0) | 3 (4.5) | |
| Hispanic/Latina | 10 (1.8) | 4 (40.0) | 2 (20.0) | 4 (40.0) | 0 (0) | |
| Native American | 33 (5.9) | 20 (60.6) | 4 (12.1) | 7 (21.2) | 2 (6.1) | |
| Birthplace (N=566) | 449 (79.3) | 110 (24.5) | 120 (26.7) | 191 (42.5) | 28 (6.2) | .04* |
| United States | 449 (79.3) | 110 (24.5) | 120 (26.7) | 191 (42.5) | 28 (6.2) | |
| Africa/Cape Verde | 15 (2.7) | 1 (6.7) | 6 (40.0) | 8 (53.3) | 0 (0) | |
| Caribbean Country | 89 (15.5) | 28 (31.8) | 32 (36.4) | 27 (30.7) | 1 (1.1) | |
| Central/South America | 14 (2.5) | 6 (42.9) | 4 (28.6) | 3 (21.4) | 1 (7.1) | |
| Educational Attainment (N=563) | .17 | |||||
| < High School | 74 (13.1) | 25 (33.8) | 20 (27.0) | 23 (31.1) | 6 (8.1) | |
| High School Grad/GED | 188 (33.4) | 46 (24.5) | 51 (27.1) | 76 (40.4) | 15 (8.0) | |
| Some College | 152 (27.0) | 41 (27.0) | 44 (28.9) | 61 (40.1) | 6 (3.9) | |
| College /Postgraduate | 149 (26.5) | 33 (22.1) | 47 (31.5) | 66 (44.3) | 3 (2.0) | |
| Employment Status (N=531) | .01* | |||||
| Full-time | 257 (48.4) | 55 (21.4) | 90 (35.0) | 109 (42.4) | 3 (1.2) | |
| Part-time | 82 (15.4) | 26 (31.7) | 15 (18.3) | 35 (42.7) | 6 (7.3) | |
| Unemployed | 126 (23.7) | 34 (27.0) | 37 (29.4) | 43 (34.1) | 12 (9.5) | |
| Homemaker/Student/Retired | 66 (12.4) | 20 (30.3) | 16 (24.2) | 27 (40.9) | 3 (4.5) | |
| Annual HH Income (N=528) | <.001* | |||||
| 20K or less | 184 (34.8) | 64 (34.8) | 43 (23.4) | 59 (32.1) | 18 (9.8) | |
| 21K to 40K | 189 (35.8) | 39 (20.6) | 63 (33.3) | 79 (41.8) | 8 (4.2) | |
| 41K to 60K | 80 (15.2) | 18 (22.5) | 22 (27.5) | 37 (46.3) | 3 (3.8) | |
| 61K or more | 75 (14.2) | 8 (10.7) | 25 (33.3) | 42 (56.0) | 0 (0) | |
| HH Composition (N=569) | .04* | |||||
| Live w Children only | 127 (22.3) | 40 (31.5) | 42 (33.1) | 39 (30.7) | 6 (4.7) | |
| Live w Adults only | 128 (22.5) | 30 (23.4) | 28 (21.9) | 60 (46.9) | 10 (7.8) | |
| Live w children/adults | 190 (33.4) | 43 (22.6) | 65 (34.2) | 76 (40.0) | 6 (3.2) | |
| Live alone | 124 (21.8) | 32 (25.8) | 29 (23.4) | 55 (44.4) | 8 (6.5) | |
| People in HH (N=568) | 3.2 ± 2.5 | 3.3 ± 2.9 | 3.3 ± 2.7 | 2.9 ± 1.8 | 3.8 ± 3.0 | .20 |
Note. Data expressed Mean ± SD or N (%). % in each sleep duration category expressed in rows. HH: household. Complete case analysis conducted for variables with missing data: N=11 for ethnicity, N=3 for birthplace, N=6 for education, N=38 for employment, N=41 for income, N=1 for number of people in HH.