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. Author manuscript; available in PMC: 2019 Dec 18.
Published in final edited form as: Int J Cancer. 2017 Jan 9;140(7):1494–1502. doi: 10.1002/ijc.30576

Table 2.

Five-year absolute and relative survival in Burkitt′s Lymphoma by age group, gender, tumor site and tumor stage

Children Adults Elderly



OS RS p values OS RS p values OS RS p values

Overall 90.3 90.4 46.0 47.8 21.7 28.9
Sex
 Female 87.9 88.0 Ref. 46.7 48.2 Ref. 24.1 28.3 Ref.
 Male 90.9 90.9 0.49 45.8 47.7 0.30 19.7 26.7 0.33
Region
 Northeast 92.1 92.2 Ref. 53.0 55.0 Ref. 21.5 25.6 Ref.
 Midwest 90.5 90.5 0.64 46.7 48.6 0.17 20.5 26.1 0.47
 South 90.2 90.3 0.54 42.3 44.1 0.001 17.4 22.5 0.17
 West 89.8 89.9 0.43 45.0 46.7 0.007 23.1 30.8 0.93
Primary site
 Lymph node 89.8 89.8 Ref. 44.4 46.1 Ref. 20.1 26.2 Ref.
 Head and neck 89.4 89.4 0.80 67.6 70.3 0.007 18.8 19.6 0.68
 GI tract 95.2 95.2 0.08 55.0 57.0 0.05 25.5 34.9 0.23
 Bone marrow 85.7 85.8 0.39 28.2 29.1 0.001 19.3 23.2 0.49
 CNS 100 100 0.38 45.3 47.2 0.69 0.0 0.0
 Others 92.2 92.2 0.59 57.2 59.3 0.004 29.1 36.1 0.05
Stage
 I 96.2 96.2 Ref. 66.1 68.9 Ref. 39.4 49.1 Ref.
 II 94.6 94.7 0.55 61.3 63.5 0.31 20.4 27.5 0.01
 III 92.0 92.0 0.17 49.2 51.1 0.0004 18.5 26.4 0.06
 IV 84.7 84.8 0.001 38.2 39.7 <0.00001 16.1 20.7 10−05
 Unknown 86.4 86.5 0.005 32.1 33.2 <0.00001 18.3 22.9 0.001

Abbreviation: CNS: central nervous system; GI: gastrointestinal; OS: observed survival; RS: relative survival.

Bold: Statistically significant at the 0.05 level.