Table 1.

Distribution of demographic and consumption variables for each type of cancer and controls, by category of each variable (percentages may not sum to 100 due to rounding)

Variable (category)No. of cancer cases (%)
No. of controls (%)
OralPharynxLarynxEsophagealLung
Total no. of subjects303100901086111,040
Age (y)
    ≤3416 (5)10 (10)3 (3)3 (3)4 (1)51 (5)
    35 to ≤4441 (14)17 (17)9 (10)10 (9)57 (9)171 (16)
    45 to ≤54146 (48)39 (39)37 (41)45 (42)301 (49)499 (48)
    55+100 (33)34 (34)41 (46)50 (46)249 (41)319 (31)
Sex
    Male233 (77)67 (67)71 (79)83 (77)303 (50)623 (60)
    Female70 (23)33 (33)19 (21)25 (23)308 (50)417 (40)
Race-ethnicity
    Non-Hispanic White192 (63)37 (38)45 (50)67 (62)359 (59)634 (61)
    African-American32 (11)10 (10)20 (22)7 (7)96 (16)102 (10)
    Hispanic51 (17)19 (19)17 (19)22 (20)70 (11)204 (20)
    Other28 (9)32 (33)8 (9)12 (11)85 (14)99 (10)
Years of schooling (y)
    <1256 (18)23 (23)27 (30)20 (19)107 (18)116 (11)
    1267 (22)23 (23)23 (26)34 (31)158 (26)184 (18)
    13-1579 (26)28 (28)24 (27)25 (23)186 (30)272 (26)
    1660 (20)16 (16)10 (11)17 (16)89 (15)209 (20)
    >1641 (14)10 (10)6 (7)12 (11)71 (12)258 (25)
Pack-years of tobacco use*
    0103 (34)43 (43)13 (14)23 (21)110 (18)492 (47)
    >0-2074 (24)22 (22)22 (24)29 (27)102 (17)353 (34)
    >20-4070 (23)21 (21)24 (27)31 (29)202 (33)136 (13)
    >4056 (18)14 (14)31 (34)25 (23)197 (32)58 (6)
Drink-years of alcohol use
    057 (19)33 (33)11 (12)16 (15)170 (28)264 (25)
    >0-50145 (48)37 (37)35 (39)59 (55)304 (50)633 (61)
    >50-10034 (11)14 (14)12 (14)15 (14)59 (10)70 (7)
    >10066 (22)16 (16)31 (35)18 (17)77 (13)69 (7)
Joint-years of marijuana use
    0115 (38)60 (60)39 (43)50 (47)299 (49)476 (46)
    >0 to <191 (30)21 (21)24 (27)30 (28)161 (26)322 (31)
    1 to <1040 (13)8 (8)7 (8)13 (12)65 (11)124 (12)
    10 to <3020 (7)5 (5)8 (9)5 (5)32 (5)57 (6)
    30 to <6012 (4)2 (2)5 (6)6 (6)20 (3)23 (2)
    ≥6024 (8)4 (4)7 (8)3 (3)33 (5)35 (3)
  • * One pack-year of tobacco use is equivalent to smoking one pack of cigarettes per day for 1 year (i.e., 365 packs or 7,300 cigarettes).

  • One drink-year of alcohol use is equivalent to having one alcoholic drink per day for 1 year (i.e., 365 drinks).

  • One joint-year of marijuana use is equivalent to smoking one joint per day for 1 year (i.e., 365 joints).