Research Article

Solid Indeterminate Pulmonary Nodules Less Than or Equal to 250 mm3: Application of the Updated Fleischner Society Guidelines in Clinical Practice

Table 5

Association between nodule outcome and independent variables (sex, risk status, volume, margins, and lobe location).

Independent variablesNodule OutcomeChi-square test
Stable ≥ 2 yearsMalignantp value

Sex
 Male13 (48.1)2 (7.4)0.447
 Female9 (33.3)3 (11.1)

Risk status
 Low risk16 (59.3)-0.003
 High risk6 (22.2)5 (18.5)

Volume
 < 100 mm314 (51.9)2 (7.4)0.340
 100-250 mm38 (29.6)3 (11.1)

Margins
 Smooth19 (70.4)2 (7.4)0.009
 Lobulated3 (11.1)2 (7.4)
 Spiculated-1 (3.7)

Lobe location
 Middle/Lower13 (48.1)1 (3.7)0.121
 Upper9 (33.3)4 (14.8)

Data are presented as numbers (%).
Chi-squared test for trend.