Table 3.

Characteristics of the EORTC-QLQ-C30 scales at the different assessment times and paired T-tests

Variable												Paired T-test
		T0		T1		T2		T3		T4		T0–T4	T1–T4
		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	P	P
gQoLa	SLNB	77.9	20.3	77.8	17.1	78.7	19.4	81.0	19.4	80.7	19.9	0.264	0.254
	SLNB+ALND	81.2	18.4	71.5	23.6	76.1	18.1	77.3	20.8	76.2	19.5	0.086	0.132
	ALND	80.0	15.6	70.5	18.2	76.7	17.2	81.0	20.6	81.0	17.5	0.692	<0.001
Physical	SLNB	88.8	12.3	82.0	17.0	86.9	13.5	86.7	14.1	88.1	14.2	0.669	0.002
	SLNB+ALND	92.6	9.9	82.7	16.1	87.5	13.3	86.9	13.7	84.3	18.1	<0.001	0.540
	ALND	92.3	10.6	79.6	15.2	84.8	14.0	86.9	12.9	86.5	13.5	0.001	<0.001
Role	SLNB	92.9	18.2	80.6	22.6	87.3	19.4	92.3	16.1	92.0	14.0	0.766	<0.001
	SLNB+ALND	90.7	17.0	68.4	24.3	83.9	22.9	85.1	20.7	83.6	26.1	0.024	<0.001
	ALND	93.3	13.7	66.9	26.7	82.5	21.7	88.9	16.4	85.6	21.8	0.014	<0.001
Emotional	SLNB	72.1	20.0	84.9	17.4	87.7	15.3	86.1	15.3	89.0	19.5	<0.001	0.069
	SLNB+ALND	69.4	20.5	77.4	24.3	81.9	22.0	81.9	23.7	82.4	21.6	<0.001	0.067
	ALND	70.8	18.5	81.5	18.6	84.3	18.5	86.5	17.5	89.3	12.3	<0.001	0.003
Cognitive	SLNB	86.7	15.7	88.6	14.8	92.3	14.4	92.0	14.0	91.0	13.6	0.038	0.280
	SLNB+ALND	88.6	14.2	82.1	17.9	85.1	19.2	82.7	19.5	85.1	17.6	0.122	0.279
	ALND	85.8	16.7	79.7	22.1	85.3	18.9	85.6	20.8	88.4	19.5	0.297	<0.001
Social	SLNB	94.4	10.2	89.2	18.1	93.5	13.9	95.7	9.8	94.1	13.0	0.859	0.038
	SLNB+ALND	90.7	18.5	80.6	22.8	87.2	19.3	90.1	19.0	88.3	20.3	0.446	0.013
	ALND	91.2	15.0	84.8	19.2	90.7	16.1	93.8	17.3	94.6	14.4	0.129	<0.001

^a Global quality of life; SD, standard deviation; T0, presurgery; T1, 6 weeks post-surgery; T2, 6 months post-surgery; T3, 12 months post-surgery; T4, 24 months post-surgery.

The values are in bold since they are significant and facilitate reading.