Table 2.
EQ-5D | Baseline Mean (SD) n t(df) p ES |
2-Year follow-up Mean (SD) n t(df) p ES |
4-Year follow-up Mean (SD) n t(df) p ES |
---|---|---|---|
Total sample |
0.67 (0.28) 228 t(227) = − 11.80 < 0.01* |
0.75 (0.25) 215 t(214) = − 8.09 < 0.01* |
0.73 (0.25) 220 t(219) = − 9.62 < 0.01* |
0.92 | 0.58 | 0.67 | |
Chronic OCD |
0.65 (0.28) 137 t(136) = − 10.05 <0.01* |
0.70 (0.24) 125 t(124) = − 8.93 <0.01* |
0.66 (0.25) 129 t(128) = − 10.37 <0.01* |
1.00 | 0.79 | 0.96 | |
Intermittent OCD |
0.75 (0.21) 22 t(21) = − 3.20 < 0.01* |
0.85 (0.18) 21 t(20) = − 1.07 0.30 |
0.81 (0.14) 22 t(21) = − 2.74 0.01* |
0.68 | 0.20 | 0.39 | |
Remitting OCD |
0.69 (0.30) 69 t(68) = − 5.62 < 0.01* |
0.83 (0.24) 69 t(68) = − 2.02 0.05* |
0.83 (0.24) 69 t(68) = − 2.20 0.03* |
0.80 | 0.24 | 0.24 |
aOne-sample t test against test value 0.89
bES = within-time between-group effect size of OCD group versus general population (Cohen’s d), obtained using pooled standard deviations assuming SD = 0.20 for the general population
*p < 0.05