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. 2017 Jul 31;166(2):459–471. doi: 10.1007/s10549-017-4417-z

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.