Table 5.
Results of multiple regression analyses of Pittsburgh Sleep Quality Index global score (N=252)
| Variable | R | R2 | Adjusted R2 |
R2 Change |
F | P (change) |
β | p | VIF | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Number of comorbidities | .139 | .019 | .015 | .019 | 4.945 | .027 | .139 | .027 | 1.000 |
|
| ||||||||||
| 2 | Number of comorbidities | .597 | .357 | .349 | .337 | 63.990 | .000 | .082 | .109 | 1.010 |
| DBAS | .366 | .000 | 1.234 | |||||||
| Sleep Hygiene | .606 | .367 | .357 | .011 | 4.231 | .041 | .323 | .000 | 1.236 | |
|
| ||||||||||
| 3 | Number of comorbidities | .077 | .133 | 1.013 | ||||||
| DBAS | .363 | .000 | 1.235 | |||||||
| Sleep Hygiene | .307 | .000 | 1.259 | |||||||
| Neighborhood | .106 | .041 | 1.032 | |||||||
Note. The number of comorbidities included CVD, chronic lung disease (COPD, asthma), diabetes, and depression. Dysfunctional Beliefs and Attitudes Sleep (DBAS); Pittsburgh Sleep Quality Index (PSQI)