Proportion of early-stage NSCLC cases initially detected by chest x-ray.

<p>Proportion of early-stage NSCLC cases initially detected by chest x-ray.</p

Baseline Case Characteristics.

a<p>Includes Medicaid, county health plan, and no insurance.</p>b<p>Of 267 cases with full smoking history data.</p>c<p>Of 158 cases presenting with symptoms.</p><p>CXR, chest x-ray; CT, computed tomography; SD, standard deviation.</p

Association between case characteristics and reason for imaging (univariate analysis).

<p> <b>OR >1: More likely to have imaging performed for evaluation of symptoms than for other reasons.</b></p>a<p>Includes Medicaid, county health plan, and no insurance.</p><p>CI, confidence interval; CXR, chest x-ray; OR, odds ratio.</p

Association between case characteristics and type of initial imaging (univariate analysis).

<p> <b>OR >1: more likely to have CXR than other modalities as initial imaging study.</b></p>a<p>Includes Medicaid, county health plan, and no insurance.</p><p>CI, confidence interval; CXR, chest x-ray; OR, odds ratio.</p