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. 2021 Oct 19;21:1124. doi: 10.1186/s12885-021-08821-5

Table 1.

Clinical data analysis of GGN

Clinical information Total number of patients (n = 589) Number of GGNs (n = 630) P
LPA(367) n-LPA(263)
Age (year), mean ± standard deviation 55.03 ± 10.07 54.91 ± 9.82 55.26 ± 10.19 0.663
Sex 0.522
 Male 203 129 86
 Female 386 238 177
Smoking history (5 missing cases) 0.396
 No 462 293 205
 Yes 122 70 58

GGN Ground-glass nodule, LPA Lepidic-predominant adenocarcinoma, n-LPA Nonlepidic-predominant adenocarcinoma. P <  0.05 was considered statistically significant