Table 4.

Mean patient and tumor characteristics for patients surviving shorter vs. longer than (a) 10 years, (b) 20 years, (c) mean patient and tumor characteristics for patients with shorter vs. longer than 30 years of follow-up.

	Patients surviving < 10 years after brachytherapy	Patients surviving ≥ 10 years after brachytherapy	p
(a)
Mean patient age at diagnosis, years	66.3	57.7	< 0.001
Mean tumor diameter, mm	11.5	9.2	< 0.001
Mean tumor thickness, mm	5.8	4.9	< 0.001
Mean AJCC stage 1–4	2.0	1.6	< 0.001
Mean distance to optic disc, mm	4.1	3.9	0.552

	Patients surviving < 20 years after brachytherapy	Patients surviving ≥ 20 years after brachytherapy	p
(b)
Mean patient age at diagnosis, years	65.6	52.5	< 0.001
Mean tumor diameter, mm	10.7	8.9	< 0.001
Mean tumor thickness, mm	5.4	4.9	0.769
Mean AJCC stage 1–4	1.9	1.5	< 0.001
Mean distance to optic disc, mm	4.2	3.7	0.131

	Patients with < 30-year follow-up	Patients with ≥ 30-year follow-up	p
(c)
Mean patient age at diagnosis, years	62.9	46.1	< 0.001
Mean tumor diameter, mm	10.2	9.0	< 0.001
Mean tumor thickness, mm	5.2	5.3	0.033
Mean AJCC stage 1–4	1.8	1.6	0.197
Mean distance to optic disc, mm	4.1	3.4	0.208