Table I.
Means, Standard Deviations, and Zero-Order Correlations
| Mean (SD) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
|---|---|---|---|---|---|---|---|---|
| 1. Pump status | 43% | 1 | ||||||
| 2. Illness duration | 7.35 (3.88) | 0.07 | 1 | |||||
| 3. Average sleep quality (SQ) | 3.56 (0.78) | −0.05 | −0.12 | 1 | ||||
| 4. Inconsistent SQ | 0.75 (0.36) | −0.06 | 0.02 | −0.33** | 1 | |||
| 5. Self-regulatory failures | 2.09 (0.82) | 0.08 | 0.07 | −0.30** | 0.15* | 1 | ||
| 6. Risk of high BG | 13.58 (11.83) | −0.04 | 0.23** | −0.22** | 0.15* | 0.39** | 1 | |
| 7. Frequency of BG checks | 3.65 (1.58) | 0.11 | 0.05 | 0.09 | −0.07 | −0.39** | −0.27** | 1 |
Note. SQ = sleep quality. The “Daily deviations in sleep quality” variable was not included in Table I above because it is an individual-level variable, and if aggregated across the sample, the results would duplicate those for “Inconsistent SQ.”
*p < .01; **p < .001.