Table 2. Comparison of CD4⁺CD25⁺FOXP3⁺/CD4⁺ T cells in lung cancer patients.

Parameter	Case Number	Treg proporation (%)	P values
Sex
Male	37	11.17 ± 0.98	0.12
Female	33	10.53 ± 1.03
Smoking
Yes	38	10.92±2.6	0.59
No	32	10.61±2.19
COPD
With	28	10.70±2.31	0.82
Without	42	10.83±2.50
Stage
I	9	7.36 ± 1.26	<0.05
II	26	9.82 ± 2.05
III	18	11.74 ± 1.70
IV	17	13.49 ± 2.07
Lymph node metastasis
Yes	43	11.71 ± 2.12	<0.05
No	27	8.47 ± 2.01
Pathologic type
Squamous carcinoma	34	10.81 ± 2.33	0.98
Adenocarcinoma	26	10.86 ± 2.78
Small-cell cancer	10	10.69 ± 1.92