Table 7.

Logistic Regression Analysis with Knowledge of Systems as Dependent Variable

Independent Variable	OR	95% CI of OR	p-value
Age
25–35 (reference category)
36–45	0.663	0.166–2.646	0.561
46–55	0.185	0.036–0.961	0.045
56–65	0.010	0.019–0.411	0.004

Note: OR, odds ratio; CI, confidence interval.