Table 2.
Quality of Life scores in the Netherlands and Japan
| Netherlands | Japan | N | t test; p value | |||
|---|---|---|---|---|---|---|
| Cronbach’s α | M (SD) | Cronbach’s α | M (SD) | |||
| EORTC QLQ-C30 function scales | ||||||
| Physical functioning | 0.75 | 85.8 (13.6) | 0.62 | 89.6 (10.2) | 250 | 0.018 |
| Role functioning | 0.86 | 67.6 (28.9) | 0.75 | 83.3 (19.4) | 250 | <0.001 |
| Emotional functioning | 0.76 | 76.9 (17.9) | 0.66 | 83.8 (13.6) | 250 | 0.001 |
| Cognitive functioning | 0.71 | 77.7 (22.5) | 0.40 | 89.2 (14.3) | 246 | <0.001 |
| Social functioning | 0.79 | 75.9 (23.9) | 0.64 | 79.7 (21.0) | 250 | n.s. |
| Global quality of life | 0.89 | 69.1 (19.6) | 0.86 | 69.3 (18.9) | 250 | n.s. |
| EORTC QLQ-C30 symptom scales | ||||||
| Fatigue | 0.86 | 40.3 (24.0) | 0.75 | 26.9 (17.5) | 250 | <0.001 |
| Nausea | 0.79 | 15.5 (25.1) | 0.30 | 4.9 (9.4) | 250 | <0.001 |
| Pain | 0.71 | 16.3 (22.5) | 0.71 | 13.8 (15.0) | 250 | n.s. |
| Dyspnea | n.a. | 13.6 (21.6) | n.a. | 13.4 (17.7) | 250 | n.s. |
| Insomnia | n.a. | 33.3 (31.7) | n.a. | 17.7 (22.2) | 250 | <0.001 |
| Appetite loss | n.a. | 22.3 (28.9) | n.a. | 10.4 (17.4) | 250 | <0.001 |
| Constipation | n.a. | 24.6 (32.0) | n.a. | 21.8 (26.6) | 250 | n.s. |
| Diarrhea | n.a. | 19.1 (32.5) | n.a. | 9.3 (18.6) | 250 | 0.007 |
| Financial problems | n.a. | 13.3 (26.5) | n.a. | 18.8 (24.7) | 250 | n.s. |