Table 4.

Responsiveness to change (T1 compared with T2) of the scales and single items of the EORTC QLQ-HL27 (n = 98)

EORTC QLQ-HL27	T1 On treatment	T2 ≥3 months after treatment	t statistic	P value	Difference between means	Cohen d ES
	n = 98	n = 98
	Mean (SD)	Mean (SD)
Scales
Symptom burden	25.3 (21.2)	20.1 (19.0)	2.46	.02	−5.2	0.26
Physical condition/fatigue	35.1 (25.6)	25.3 (23.8)	3.80	<.01	−9.8	0.40
Emotional impact	28.0 (23.5)	24.7 (22.0)	1.24	.22	−3.3	0.15
Worries/fears about health and functioning	42.0 (27.4)	42.3 (27.6)	0.54	.59	0.3	0.01
Single items (conditional)
Problems at work/place of study	21.1 (34.2)	18.3 (32.3)	1.03	.30	−2.8	0.08
Worries about work/study	28.3 (34.9)	24.6 (35.1)	0.88	.38	−3.7	0.10
Concern about ability to have children	28.9 (36.7)	27.4 (37.0)	0.10	.92	−1.5	0.04

An ES of 0.2 is considered small; 0.5, moderate; and 0.8, large.⁴²