. 2018 May;10(5):2676–2684. doi: 10.21037/jtd.2018.04.87

Table 1. Demographic data of patients with benign and malignant GGOs (n=31).

Characteristics	Benign	Malignant	Significance
Characteristics	Benign	Malignant	Statistics	P value
N (%)	9 (29.0)	22 (71.0)		–
Gender (n)				0.233^a
Male	6	8
Female	3	14
Age (year)	57.78±8.32	56.27±7.91	t=0.474	0.639

^a, χ² test: Fisher’s exact test. GGO, ground-glass opacity.