Table 4 Descriptive statistics and reliability indices ( n = 310)
From: Psychometric properties of the stagnation scale in medication overuse headache patients
|  | M (SD) | Men n = 189 | Women n = 121 | t-test (DF = 309) | P | Cronbach alpha | Inter-item mean correlation |
|---|---|---|---|---|---|---|---|
Stagnation total score | 51.64 (29.70) | 50.81 (28.66) | 52.94 (31.34) | -0.61 | 0.54 | 0.93 | 0.44 |
Overattachment | 24.78 (14.61) | 24.15 (13.92) | 25.79 (15.64) | -0.96 | 0.34 | 0.87 | 0.49 |
Body-Mind obstruction | 16.61 (10.57) | 16.66 (10.29) | 16.54 (11.04) | 0.09 | 0.93 | 0.85 | 0.53 |
Affect-Posture inhibition | 10.36 (8.18) | 10.21 (7.94) | 10.61 (8.56) | -0.42 | 0.68 | 0.83 | 0.56 |
BDI-II | 11.15 (9.43) | 11.74 (9.65) | 10.56 (9.98) | 1.04 | 0.30 | 0.92 | 0.36 |
BDI-II ≥ 20 | 16.4% | 16.6% | 16.1% | - | 0.52 | - | - |
IPDS | 26.09 (16.63) | 27.48 (16.76) | 23.95 (16.27) | 1.82 | 0.07 | 0.92 | 0.36 |