Table 3.
Participant characteristics by sleep quality (n = 95)a
| Characteristic | Good sleep quality (global PSQIb ≤5) (n = 37) |
Poor sleep quality (global PSQIb >5) (n = 58) |
p valuec |
|---|---|---|---|
| Mean age, years (SD) | 58.6 (12.6) | 56.1 (9.8) | 0.310 |
| Mean time since diagnosis, years (SD) | 2.3 (1.3) | 2.2 (1.3) | 0.614 |
| Education, n (%) | |||
| Less than high school | 0 (0) | 2 (4) | 0.590 |
| High school diploma/GED | 4 (11) | 8 (14) | |
| Technical/vocational degree | 3 (8) | 5 (9) | |
| Some college/2-year degree | 14 (38) | 20 (34) | |
| 4-year degree | 7 (19) | 16 (28) | |
| Advanced degree | 9 (24) | 7 (12) | |
| Race, n (%) | |||
| Hispanic white | 4 (11) | 8 (14) | 0.644 |
| Non-Hispanic American Indian/Alaska native | 0 (0) | 1 (2) | |
| Non-Hispanic Asian | 2 (5) | 3 (5) | |
| Non-Hispanic black | 4 (11) | 2 (4) | |
| Non-Hispanic white | 27 (73) | 44 (76) | |
| Disease stage, n (%) | |||
| I | 26 (70) | 50 (86) | 0.103 |
| II | 8 (22) | 7 (12) | |
| III | 3 (8) | 1 (2) | |
| Treatment, n (%) | |||
| Surgery only | 17 (46) | 37 (64) | 0.095 |
| Surgery + radiotherapy | 20 (54) | 21 (36) | |
| Marital status, n (%) | |||
| Single | 5 (14) | 6 (10) | 0.143 |
| Married | 21 (57) | 40 (69) | |
| Divorced | 5 (14) | 5 (9) | |
| Living with significant other | 5 (14) | 1 (2) | |
| Separated | 0 (0) | 1 (2) | |
| Widowed | 1 (3) | 5 (9) |
a
A PSQI score ≤5 indicates good sleep quality. PSQI data at baseline were available for 95 participants.
b
Welch’s two-sample t-test was performed assuming unequal variances.
c
Fisher exact tests of independence.