Table 2.
Differences between participants who did report sensory properties of depressive thoughts versus those who did not
| Variable | No sensory properties (n = 155) | Sensory properties of thoughts (n = 201) | Statistics |
|---|---|---|---|
| Background variables | |||
| Age in years | 42.97 (11.15) | 43.03 (11.02) | t(354) = 0.05, p > .9, d = .01 |
| Gender (male/female) | 48/107 | 58/143 | χ2(1) = 0.19, p > .6 |
| Number of prior depressive episodes (once/up to 5 times/up to 10 times/up to 20 times/more than 20 times) | 30/72/30/11/12 | 31/79/46/26/19 | χ2(1) = 3.89, p = .05 |
| Depressive symptoms | |||
| HDRS | |||
| Psychic depression (items 1, 2, 3, 8, 22, 23, 24) | 5.12 (3.25) | 5.88 (3.40) | t(304) = 2.00, p = .05, d = .23 |
| Loss of motivated behaviour (items 7, 12, 14, 16) | 2.52 (1.80) | 2.78 (1.99) | t(304) = 1.19, p > .2, d = .14 |
| Psychosis/disturbed thinking (items 17, 19, 20, 21) | 0.54 (0.92) | 0.76 (1.20) | t(304) = 1.83, p = .07, d = .21 |
| Anxiety (items 9, 10, 11, 15) | 3.21 (2.31) | 3.66 (2.32) | t(304) = 1.69, p = .09, d = .19 |
| Sleep disturbance (items 4, 5, 6) | 2.71 (1.76) | 2.72 (1.72) | t(304) = 0.09, p > .9, d = .01 |
| Total score (sum items 1–24) | 16.57 (7.45) | 18.06 (7.64) | t(304) = 1.71, p = .09, d = .20 |
| QIDS total score | 8.71 (4.00) | 9.68 (4.07) | t(305) = 2.08, p = .04, d = .24 |
| PHQ-9 total score | 10.21 (2.61) | 10.54 (2.30) | t(354) = 1.26, p > .2, d = .13 |
| Suicidality | |||
| SBQ-R item 4 (likelihood of future suicide) | 0.88 (0.93) | 1.08 (1.00) | t(305) = 1.73, p = .08, d = .21 |
| MINI item suicide (ever tried to commit suicide) | 18 (13.2%) | 37 (21.6%) | χ2(1) = 3.72, p = .05 |
| Well-being/quality of life | |||
| SF-12 physical health | 47.39 (10.15) | 47.05 (9.32) | t(341) = 0.32, p > .7, d = .03 |
| SF-12 mental health | 31.54 (8.58) | 30.05 (7.07) | t(341) = 1.74, p = .08, d = .19 |