Table 3: Logistic regression analysis results regarding to the false-negative rate.

Independent variablesDependent variable OR95% CI

Nodule size (2-3) cm FN0.0124.91.4–16.8
Nodule size (3-4) cm0.0185.01.3–18.6
No attendance of cytopathologists<0.00176.031.8–181.5