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. 2021 Jul 23;35(9):e23912. doi: 10.1002/jcla.23912

TABLE 1.

The characteristics of the enrolled patients

	Malignant (n = 318)	Benign (n = 72)	p value
Age^b	39.21(6.70)	38.49(5.32)	0.392
Sex^a	—	—	0.155
Male	88 (27.67%)	26 (36.11%)	—
Female	230 (72.33%)	46 (63.89%)	—
Personal cancer history^a	23 (7.23%)	2 (2.78%)	0.260
Family cancer history^a	27 (8.49%)	8 (11.11%)	0.482
Smoke^a	38 (11.95%)	12 (16.67%)	0.280
Nodule size^a	—	—	0.235
≤10 mm	166 (52.20%)	32 (44.44%)	—
11−30 mm	152 (47.80%)	40 (55.56%)	—

^{^a}

Data were expressed as the number of cases (percentage).

^{^b}

Data were expressed as mean ± standard derivation.