Table 3 The results of the log-rank test

Age

 < 0.001

 <60

  ≥ 60

Year of diagnosis

0.006

0.329

0.035

 1992–2002

 2003–2012

 2013–2018

Sex

0.757

0.4

0.794

 Male

 Female

Race

0.188

0.091

0.785

 White

 Others

Laterality

0.05

0.03

0.072

 Unilateral

 Bilateral

 Unknown

Primary site

0.002

0.946

0.018

 Retina

 Choroid

 Ciliary body

 Vitreous

Pathological type

 < 0.001

0.347

 < 0.001

 DLBCL

 MALT

 NHL, NOS

 Other/unclassified^b

Ann arbor stage

0.057

0.22

0.032

 I to II

 III to IV

 Unknown

Surgery

0.44

0.949

0.521

 No/unknown

 Performed

Radiotherapy

0.361

0.147

0.715

 No/unknown

 Performed

Chemotherapy

 < 0.001

0.001

 No/unknown

 Performed