Table 3.
Covariate | OR | 95% Wald confidence limits | p value | |
---|---|---|---|---|
Age | 0.98 | 0.97 | 0.99 | <0.01∗∗ |
BMI | 0.91 | 0.88 | 0.94 | <0.01∗∗ |
Sex | 0.20 | |||
Female | 1.00 | |||
Male | 1.29 | 0.87 | 1.92 | |
Smoking status | <0.01∗∗ | |||
Not at all | 1.00 | |||
Some days | 0.96 | 0.45 | 2.03 | |
Every day | 0.37 | 0.21 | 0.64 | |
Income level | <0.01∗∗ | |||
Under $25,000 | 1.00 | |||
$25,000 up to $49,999 | 1.23 | 0.70 | 2.14 | |
$50,000 up to $74,999 | 2.73 | 1.52 | 4.90 | |
$75,000 or more | 2.19 | 1.26 | 3.81 | |
Education level | <0.01∗∗ | |||
High school or less | 1.00 | |||
Some college/associates | 1.11 | 0.69 | 1.78 | |
Bachelors or more | 2.52 | 1.51 | 4.21 | |
Number of coal facilities nearby | 0.31 | |||
0 | 1.00 | |||
1 or 2 | 0.91 | 0.53 | 1.55 | |
3 or 4 | 0.74 | 0.43 | 1.28 | |
5 or 6 | 0.60 | 0.34 | 1.06 |
∗∗Statistically significant at p < 0.01.