Table 4.

Association of decision regret and categorical independent variables per one-way ANOVA (n = 207)

Variable	n	Mean	SD	p
Gender
Male	102	16.81	20.76
Female	105	10.51	16.01	0.015
Employment status at the time of radiotherapy
Employed (incl. self-employed)	73	11.03	17.04	0.211
Unemployed	28	18.04	23.66
Retired	105	13.51	16.80
Partnership at the time of radiotherapy
Partner	152	12.24	17.21
No partner	54	17.75	22.20	0.063
ECOG at the follow-up consultation
ECOG 0	156	10.87	16.44
ECOG 1	37	17.52	21.41
ECOG 2–3	13	36.54	20.55	< 0.001
Primary cancer
Breast	84	8.63	14.63
Prostate	57	12.37	14.15
Head-and-neck	19	25.53	21.85
Lung	11	11.82	14.19
Other	36	21.48	27.01	< 0.001
Intention of radiotherapy
Curative	188	13.09	18.96
Palliative	19	18.86	15.74	0.201
Time between last day of radiotherapy and study participation
0–6 months	67	14.93	18.33
7–12 months	15	14.89	14.44
13–18 months	20	11.75	14.35
19–24 months	16	8.13	14.36
25–36 months	33	18.79	25.59
37–48 months	20	12.25	19.16
49–60 months	11	15.00	25.50
> 60 months	25	8.00	11.73	0.443
Radiotherapy-induced grade 3/4 toxicity at the time of study participation
No	195	13.12	18.64
Yes	12	21.67	19.11	0.125
Tumor progression at the time of study participation
No	199	13.33	18.79
Yes	8	20.63	16.57	0.281
Concomitant systemic treatment
Chemotherapy	23	20.43	24.35
Hormone therapy	70	9.93	16.12
Targeted therapy incl. immunotherapy	4	15.00	17.80
No systemic treatment	110	14.48	18.72	0.110
Hospitalization during radiotherapy
Hospitalization	34	20.15	22.14
No hospitalization	171	12.42	17.85	0.028

ECOG, Eastern Cooperative Oncology Group; SD, standard deviation

Bold values denote statistical significance at the p < 0.05 level