Table 2: Multivariateadjusted
odds ratios and 95% confidence intervals of cancer.
Parameter 
B 
OR (95% CI) 
P value 
Sex 



Male
(n = 667) 

1 

Female
(n = 443) 
0.002 
0.998 (0.4882.042) 
0.995 
Age group 



<
20 (n = 64) 

1 

2039
(n = 276) 
0.383 
1.466 (0.17512.280) 
0.724 
4049
(n = 401) 
0.526 
1.692 (0.21513.347) 
0.618 
5059
(n = 251) 
0.922 
2.514 (0.31520.041) 
0.384 
≥
60 (n = 118) 
0.941 
2.564 (0.29022.670) 
0.397 
Physicians vs.
Nonphysicians 



Nonphysicians
(n = 840) 

1 

Primary
physicians (n = 147) 
1.067 
2.905 (1.3376.314) 
0.007^{*} 
Tertiary
physicians (n = 123) 
0.348 
0.706 (0.1553.220) 
0.653 
^{*}P < 0.05 vs. control (Nonphysicians), considered
statistically significant; Values of B are
standardized regression coefficients; OR indicates odds ratio; CI indicates
confidence interval.