Table 1. Distribution of demographic factors and tobacco smoking in cases and controls.
Variable | Case (%) | Control (%) | P value |
---|---|---|---|
Age (years) | 54.7±10.8 | 55.6±10.6 | 0.313 |
<41 | 43(12.6) | 34(10.0) | |
41–50 | 66(19.4) | 69(20.3) | |
51–60 | 110(32.4) | 105(30.9) | |
>60 | 121(35.6) | 132(38.8) | 0.634 |
sex | |||
Male | 270(79.4) | 264(77.6) | |
Female | 70(20.6) | 76(22.4) | 0.575 |
Tobacco smoking | |||
Ever | 225(66.2) | 165(48.5) | |
Never | 115(33.8) | 175(51.5) | <0.001 |