Table 3.
Pre- and postoperative HRQoL in patients with and without pre- and postoperative comorbid psychiatric disorders
| Patients without psychiatric disorders, N = 49 | Patients with psychiatric disorders that resolve after surgery, N = 22 | Patients with psychiatric disorders that persist after surgery, N = 16 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T0* Mean (SD) | T1* Mean (SD) | P** | d *** | Change (T1-T0) Mean Z-score (SD) | T0* Mean (SD) | T1* Mean (SD) | P** | d *** | Change (T1-T0) Mean Z-score (SD) | T0* Mean (SD) | T1* Mean (SD) | P** | d *** | Change (T1-T0) Mean Z-score (SD) | |
| SF-36 Physical Functioning Subscale | 60.8 (22.1) | 93.0 (12.1) | < .001 | 1.71 | < .01 (1.0) | 52.3 (17.0) | 82.1 (24.2) | < .001 | 1.79 | .1 (1.0) | 46.0 (27.2) | 73.6 (25.2) | .001 | 1.50 | - .4 ( .8) |
| Effect size**** | -1.30 | .27 | -2.2 | - .29 | -1.6 | - .63 | |||||||||
| SF-36 Physical Role Limitation Subscale | 51.7 (41.0) | 83.1 (32.1) | < .001 | .78 | - .1 ( .9) | 35.0 (40.9) | 77.4 (41.8) | .006 | .91 | .3 (1.2) | 23.4 (34.7) | 54.2 (48.7) | .076 | .53 | - .1 ( .7) |
| Effect size**** | - .74 | .02 | -1.13 | - .09 | -1.68 | - .56 | |||||||||
| SF-36 Bodily Pain Subscale | 51.9 (24.5) | 75.1 (26.8) | < .001 | .87 | .1 (1.0) | 37.3 (14.6) | 60.5 (31.0) | .01 | .76 | .2 (1.2) | 39.3 (29.9) | 50.4 (33.2) | .023 | .67 | - .2 ( .7) |
| Effect size**** | - .98 | - .03 | -2.60 | - .47 | -1.24 | - .78 | |||||||||
| SF-36 General Health Subscale | 56.3 (22.5) | 86.8 (13.9) | < .001 | 1.29 | < .01 (1.0) | 41.6 (13.5) | 76.6 (19.5) | < .001 | 1.73 | .2 ( .8) | 34.3 (22.7) | 54.4 (34.4) | .033 | .75 | - .5 ( 1.0) |
| Effect size**** | - .99 | .60 | -2.67 | - .05 | -1.94 | - .70 | |||||||||
| SF-36 Vitality Subscale | 43.3 (18.9) | 65.5 (19.2) | < .001 | .88 | < .01 (1.0) | 32.5 (17.4) | 63.1 (20.2) | < .001 | 1.40 | .5 ( .9) | 36.9 (22.9) | 45.4 (21.8) | .016 | .78 | - .3 ( .7) |
| Effect size**** | - .87 | .30 | -1.60 | .14 | -1.0 | - .66 | |||||||||
| SF-36 Social Function Subscale | 79.1 (20.2) | 95.3 (12.8) | .001 | .64 | - .1 ( .9) | 68.6 (19.7) | 94.6 (11.6) | < .001 | 1.51 | .4 ( .7) | 49.2 (29.4) | 59.4 (26.2) | .053 | .51 | - .1 (1.2) |
| Effect size**** | - .34 | .72 | - .89 | .72 | -1.26 | -1.02 | |||||||||
| SF-36 Emotional Role Limitation Subscale | 87.2 (29.5) | 93.0 (20.0) | .103 | .25 | < .01 ( .7) | 78.3 (26.3) | 90.5 (30.1) | .170 | .38 | .3 (1.2) | 50.0 (48.7) | 47.2 (48.1) | .414 | - .22 | - .4 ( .9) |
| Effect size**** | .12 | .46 | - .21 | .22 | - .68 | - .74 | |||||||||
| SF-36 Mental Health Subscale | 78.7 (12.5) | 86.3 (10.5) | < .001 | .58 | < .01 ( .8) | 71.6 (12.8) | 85.1 (10.0) | .002 | .96 | .4 ( .9) | 59.5 (21.7) | 55.3 (25.5) | .305 | - .20 | - .4 ( 1.4) |
| Effect size**** | .02 | .74 | - .57 | .62 | - .87 | - .90 | |||||||||
*T0 = preoperative assessment, T1 = follow-up one year after surgery. **Difference in scores from preoperative assessment to postoperative assessment, Wilcoxon Signed Rank Test. *** Paired-Samples t-test to calculate effect size index d **** Effect size is calculated by subtracting the mean score of the population norm (adjusted for age and gender) from the mean score of the patients group and divided by the standard deviation of the patient group.