Table 1

The prevalence of ETS in cases and controls, by category of selected demographic factors, smoking, alcohol, and mutagen sensitivity

ControlsCases
ETS Yes (n)%TotalETS Yes (n)%Total
Total13983.716614593.6155
Age
<606884.0816492.869
60–694483.0534395.645
≥702784.3303892.741
Gender
Male9084.91069294.997
Female4981.7605391.458
Race
White12784.715012994.9136
Non-white1275.0161684.219
Education
≤High school4397.7448993.795
College6575.6864197.642
Postgraduate3186.1361487.516
Cigarette smoking
Never4678.0592388.526
Ever9286.810612195.3127
Quit6085.7703697.337
Currenta3288.9368594.490
Pack-Years
04678.0592388.526
1–22.44083.3482095.221
22.5–44.92692.9283697.337
≥451794.4185793.461
Marijuana use
No12684.614912696.2131
Yes1376.5171979.224
Alcohol use (drinks/months)
<10011883.11428993.795
≥1001493.3155192.755
Mutagen sensitivity (breaks/cell)
<17882.1952990.632
≥12586.2294693.949
Tumor sites (ICD9)
Lip (140)150.02
Tongue (141)4391.547
Gum (143)1090.911
Floor of mouth (144)14100.014
Other parts of mouth (145)990.010
Oropharynx (146)1090.911
Nasopharynx (147)2100.02
Hypopharynx (148)10100.010
Other oral cavity (149)1100.01
Esophagus (150)1100.01
Larynx (161)4495.746
  • a Current smoking category included these who were still smoking and people who had quit smoking for <5 years.