Fig. 1From: Identification of preoperative prediction factors of tumor subtypes for patients with solitary ground-glass opacity pulmonary nodulesReceiver operating characteristic (ROC) curves assessing the accuracy of clinical and imaging factors in predicting invasive adenocarcinoma (IA) versus adenocarcinoma in situ (AIS) or minimally invasive adenocarcinoma (MIA). The p value for age (a), serum carcinoembryonic antigen (CEA) level (b), tumor size (c), ground-glass opacity type (d), Bubble-like sign (e) and the combination of these five factors (f) were 0.005816, 0.00020, < 0.0001, < 0.0001, 0.001and < 0.0001, respectivelyBack to article page