Table 1.

Distribution of classic HL patients and population and NHL controls according to sex, country, educational level and smoking status and tumor EBV status

Controls
Classic HL
Populations (N = 3,187)NHL (N = 3,055)Overall (N = 586)EBV-positive lymphoma (N = 142)EBV-negative lymphoma (N = 357)
Country, n (%)
    Denmark1,186 (37)1,075 (35)247 (42)64 (45)144 (40)
    Sweden2,001 (63)1,980 (65)339 (58)78 (55)213 (60)
Age at interview (y), median (range)59 (18-76)61 (18-76)35 (18-77)37 (20-75)34 (18-74)
Sex, n (%)
    Male1,767 (55)1,819 (60)306 (52)91 (64)167 (47)
    Female1,420 (45)1,236 (40)280 (48)51 (36)190 (53)
Educational level (y),*n (%)
    ≤9919 (29)1,020 (34)92 (16)24 (17)44 (12)
    10-121,466 (47)1,327 (44)334 (57)87 (61)204 (57)
    ≥13752 (24)676 (22)157 (27)31 (22)106 (30)
Cigarette smoking status*,, n (%)
    Never1,460 (47)1,367 (46)299 (52)61 (46)192 (54)
    Ever1,665 (53)1,628 (54)275 (48)73 (54)163 (46)
        Former949 (57)950 (59)92 (34)24 (33)55 (34)
        Current712 (43)673 (41)182 (66)49 (67)107 (66)
  • * Numbers may not add up due to missing information.

  • For 134 (2%) of the study subjects, cigarette smoking status could not be accurately defined; these were excluded from the analyses.