TABLE 2.
Mean Values of Subjective and PSG Sleep According to Attachment Profile, Marital Status, or Bed-Partner Status (n = 107)
| Attachment Profile |
Marital Status |
Bed-Partner Status |
|||||
|---|---|---|---|---|---|---|---|
| Sleep Parameter | Low Attachment Anxiety (n = 41) | High Attachment Anxiety (n = 66) | Never Married (n = 41) | Previously Married (n = 21) | Married (n = 35) | No (n = 46) | Yes (n = 43) |
| PSQIa | 9.8 ± 3.5 | 9.1 ± 3.7 | 8.8 ± 3.7 | 9.5 ± 4.1 | 9.7 ± 3.2 | 9.0 ± 3.9 | 9.7 ± 3.3 |
| Total sleep (min) | 440.8 ± 50.4 | 442.6 ± 51.3 | 438.6 ± 53.6 | 449.1 ± 59.0 | 440.4 ± 41.6 | 444.7 ± 60.1 | 436.3 ± 41.1 |
| Sleep latency (min) | 21.1 ± 17.2 | 16.3 ± 12.5 | 21.8 ± 14.9 | 16.2 ± 14.2 | 15.7 ± 14.0 | 21.1 ± 16.0 | 16.0 ± 13.3 |
| Sleep efficiency (%) | 89.4 ± 8.3 | 90.9 ± 6.2 | 89.4 ± 7.4 | 89.3 ± 8.8 | 92.0 ± 5.0 | 88.5 ± 7.8 | 92.2 ± 5.4 |
| Stage 3−4 (%) | 11.2 ± 9.3 | 8.9 ± 7.3 | 10.8 ± 6.7 | 7.6 ± 7.7 | 10.3 ± 9.7 | 8.6 ± 6.3 | 9.5 ± 9.3 |
| REM density | 1.3 ± 0.5 | 1.3 ± 0.5 | 1.3 ± 0.6 | 1.3 ± 0.6 | 1.2 ± 0.4 | 1.2 ± 0.5 | 1.4 ± 0.5 |
| REM latency (min) | 70.4 ± 28.2 | 67.7 ± 30.8 | 70.3 ± 32.0 | 69.2 ± 24.8 | 66.7 ± 31.0 | 68.4 ± 26.2 | 69.0 ± 34.8 |
PSG = polysomnography; PSQI = Pittsburgh Sleep Quality Index; REM = visually scored rapid eye movement sleep.
Values are unadjusted mean ± standard deviation (SD) values. To facilitate interpretation, all mean and SD values are nontransformed values.
a
Due to missing data, the n for analyses of marital status and attachment style for the PSQI is 99 and the n for bed-partner status and PSQI is 87.