Table 1 Frequency distributions of selected variables in HCC cases and controls
From: A miR-182 variant and risk of hepatocellular carcinoma in a southern Chinese population
Variables | Cases n(%) | Controls n(%) | P a |
|---|---|---|---|
All subjects | 863(100) | 908(100) | |
Age | 0.687 | ||
≤ 49 | 467(54.1) | 500(55.1) | |
> 49 | 396(45.9) | 408(44.9) | |
Sex | 0.053 | ||
Females | 100(11.6) | 80(8.8) | |
Males | 763(88.4) | 828(91.2) | |
Smoking | < 0.001 | ||
Never | 492(57.0) | 679(74.8) | |
Ever | 371(43.0) | 229(25.2) | |
Drinking | < 0.001 | ||
Never | 531(61.5) | 711(78.3) | |
Ever | 332(38.5) | 197(21.7) | |
HBV infection | < 0.001 | ||
(−) | 138(16.0) | 821(90.4) | |
(+) | 725(84.0) | 87(9.6) |