Table 4.

Univariate and multivariate analysis of clinical and pathological parameters regarding OS in elderly cSCC patients receiving radiotherapy

Univariate	HR for OS	CI 95%	p-value
Age > 80 years	2.22	1.07–4.60	0.032
N+	3.68	1.52–8.95	0.004
R+	5.38	0.70–41.08	0.105
CCI ≥ 6	1.14	0.63–2.05	0.670
KPS ≤ 70%	1.10	0.60–2.00	0.763

Multivariate	HR for OS	CI 95%	p-value
Age > 80 years	1.90	0.78–4.65	0.159
N+	3.73	1.54–9.03	0.004

Univariate	HR for LRC	CI 95%	p-value
Age > 80 years	0.68	0.30–1.52	0.351
T stage	1.63	0.90–2.96	0.108
R+	2.22	0.28–17.8	0.454
N+	3.72	1.12–12.3	0.031
total dose (EQD2)	0.99	0.96–1.02	0.496
recurrence vs. initial diagnosis	1.71	0.99–2.96	0.058
KPS ≤ 70%	0.90	0.39–2.06	0.803