Table 1.

Demographic characteristics among UADT SCC cases and controls

TotalOverallNever alcohol drinkers
Cases, n (%)Controls, n (%)Cases, n (%)Controls, n (%)
n = 2,103n = 2,221n = 118n = 272
Center
    Czech Republic: Prague163 (7.75)187 (8.42)4 (3.39)6 (2.21)
    Germany: Bremen277 (13.17)327 (14.72)9 (7.63)26 (9.56)
    Greece: Athens211 (10.03)194 (8.73)20 (16.95)35 (12.87)
    Italy: Aviano145 (6.89)151 (6.80)1 (0.85)11 (4.04)
    Italy: Padova128 (6.09)130 (5.85)9 (7.63)25 (9.19)
    Italy: Turin158 (7.51)198 (8.91)17 (14.41)31 (11.40)
    Ireland: Dublin33 (1.57)19 (0.86)2 (1.69)3 (1.10)
    Norway: Oslo137 (6.51)184 (8.28)8 (6.78)16 (5.88)
    UK: Glasgow90 (4.28)91 (4.10)3 (2.54)1 (0.37)
    UK: Manchester141 (6.70)186 (8.37)3 (2.54)5 (1.84)
    UK: Newcastle67 (3.19)113 (5.09)2 (1.69)4 (1.47)
    Spain: Barcelona184 (8.75)166 (7.47)24 (20.34)84 (30.88)
    Croatia: Zagreb50 (2.38)46 (2.07)3 (2.54)6 (2.21)
    France: Paris319 (15.17)229 (10.31)13 (11.02)19 (6.99)
Age (y)
    <4048 (2.28)107 (4.82)8 (6.78)21 (7.72)
    40-4495 (4.52)118 (5.31)6 (5.08)15 (5.51)
    45-49212 (10.08)193 (8.69)5 (4.24)22 (8.09)
    50-54318 (15.12)316 (14.23)10 (8.47)37 (13.60)
    55-59444 (21.11)386 (17.38)22 (18.64)36 (13.24)
    60-64352 (16.74)310 (13.96)15 (12.71)27 (9.93)
    65-69306 (14.55)341 (15.35)18 (15.25)35 (12.87)
    70-74192 (9.13)252 (11.35)17 (14.41)33 (12.13)
    ≥75136 (6.47)198 (8.91)17 (14.41)46 (16.91)
    P<0.0010.548
Sex
    Men1,712 (81.41)1,659 (74.70)40 (33.90)113 (41.54)
    Women391 (18.59)562 (25.30)78 (66.10)159 (58.46)
    P<0.0010.155
Education
    Finished primary school778 (36.99)590 (26.56)55 (46.61)109 (40.07)
    Finished further school1,197 (56.92)1,389 (62.54)52 (44.07)139 (51.10)
    University degree128 (6.09)242 (10.90)11 (9.32)24 (8.82)
    P<0.0010.429
Histology
    Controls2,221 (100.00)272 (100.00)
    Oral/oropharynx993 (47.22)58 (49.15)
    Hypopharynx/larynx854 (40.61)45 (38.14)
    Esophagus152 (7.23)13 (11.02)
    Overlapping104 (4.95)2 (1.69)