Table 3

Comparison of mean scores, SD, median scores and IQR according to differences in age, sex, initial treatment, tumour stage, survival time, recurrence and adverse events

	Valid N	EQ-5D utility score
	Valid N	Mean	(SD)	Median	(IQR)
Age
<68 years	124	0.77	(0.26)	0.81	(0.31)
≥68 years	121	0.72	(0.27)	0.76	(0.19)
p Value^*				0.071
Sex
Male	164	0.75	(0.26)	0.80	(0.31)
Female	81	0.73	(0.27)	0.76	(0.33)
p Value^*				0.492
Initial treatment modality
Surgery alone	111	0.77	(0.25)	0.81	(0.31)
Radiotherapy and chemotherapy	63	0.69	(0.31)	0.76	(0.37)
Surgery and chemotherapy	26	0.81	(0.24)	0.85	(0.31)
Radiotherapy alone	18	0.62	(0.24)	0.69	(0.23)
Radiotherapy, chemotherapy and surgery	19	0.72	(0.22)	0.73	(0.13)
Radiotherapy and surgery	6	0.86	(0.12)	0.81	(0.22)
Chemotherapy alone	2	1.00	–	1.00	–
p Value^†				0.010
Initial tumour stage
I	105	0.77	(0.26)	0.81	(0.31)
II	39	0.74	(0.22)	0.76	(0.16)
III	99	0.70	(0.29)	0.76	(0.26)
IV	2	0.86	(0.19)	0.86	–
p Value^†				0.266
Survival time
<2.44 years	124	0.72	(0.27)	0.76	(0.22)
≥ 2.44 years	121	0.76	(0.26)	0.81	(0.31)
p Value^*				0.073
Recurrence
No	177	0.76	(0.24)	0.80	(0.31)
Yes	34	0.61	(0.37)	0.76	(0.52)
p Value^*				0.121
Severe adverse events
No	200	0.80	(0.20)	0.81	(0.31)
Yes	41	0.45	(0.33)	0.52	(0.55)
p Value^*				< 0.001

↵* Mann–Whitney U test.
↵† Kruskal–Wallis test.