Table 1

Characteristics of HL cohort, SIR, and AER of mesothelioma after HL

CharacteristicNo. (%) of patientsObserved MMExpected MMSIR(95% CI)AER(95% CI)
Overall 2567 (100) 13 0.51 25.7 (13.7-44.0) 3.5 (1.8-6.1) 
Sex        
    Male 1437 (56) 0.45 17.9 (7.7-35.3) 3.9 (1.6-7.9) 
    Female 1130 (44) 0.06 85.2 (27.6-199) 3.0 (0.9-7.1) 
Age at first treatment of HL        
    Less than or equal to 30 y 1559 (60.7) 0.10 66.8 (26.9-138) 3.0 (1.1-6.2) 
    31-50 y 1008 (39.3) 0.40 15.0 (5.5-32.5) 4.4 (1.4-9.8) 
Treatment category*        
    Radiotherapy only 730 (28.5) 0.17 5.8 (0.2-32.1) 0.7 (−0.1 to 4.7) 
    Chemotherapy only 232 (9) 0.06 —  —  
    Radiotherapy + chemotherapy 1605 (62.5) 12 0.27 44.8 (23.2-78.3) 5.6 (2.8-9.9) 
    Radiotherapy ± chemotherapy 2335 (91) 13 0.44 29.5 (15.7-50.4) 3.9 (2.0-6.7) 
Follow-up        
    5-25 y 2287 (89.1) 0.39 15.5 (5.7-33.8) 1.7 (0.6-3.9) 
    More than or equal to 25 y 280 (10.9) 0.12 58.4 (23.5-120) 21.5 (8.4-44.7) 
CharacteristicNo. (%) of patientsObserved MMExpected MMSIR(95% CI)AER(95% CI)
Overall 2567 (100) 13 0.51 25.7 (13.7-44.0) 3.5 (1.8-6.1) 
Sex        
    Male 1437 (56) 0.45 17.9 (7.7-35.3) 3.9 (1.6-7.9) 
    Female 1130 (44) 0.06 85.2 (27.6-199) 3.0 (0.9-7.1) 
Age at first treatment of HL        
    Less than or equal to 30 y 1559 (60.7) 0.10 66.8 (26.9-138) 3.0 (1.1-6.2) 
    31-50 y 1008 (39.3) 0.40 15.0 (5.5-32.5) 4.4 (1.4-9.8) 
Treatment category*        
    Radiotherapy only 730 (28.5) 0.17 5.8 (0.2-32.1) 0.7 (−0.1 to 4.7) 
    Chemotherapy only 232 (9) 0.06 —  —  
    Radiotherapy + chemotherapy 1605 (62.5) 12 0.27 44.8 (23.2-78.3) 5.6 (2.8-9.9) 
    Radiotherapy ± chemotherapy 2335 (91) 13 0.44 29.5 (15.7-50.4) 3.9 (2.0-6.7) 
Follow-up        
    5-25 y 2287 (89.1) 0.39 15.5 (5.7-33.8) 1.7 (0.6-3.9) 
    More than or equal to 25 y 280 (10.9) 0.12 58.4 (23.5-120) 21.5 (8.4-44.7) 

SIR indicates standardized incidence ratio; AER, absolute excess rate; CI, confidence interval; and HL, Hodgkin lymphoma.

*

Including primary/salvage treatment for HL and treatment for second malignancies other than mesothelioma.

Indicates radiotherapy with or without chemotherapy.

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