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Table 1 Correlation between circFGFR1 and clinical characteristics in 210 NSCLC patients

From: Circular RNA circFGFR1 promotes progression and anti-PD-1 resistance by sponging miR-381-3p in non-small cell lung cancer cells

Variables

CircFGFR1 expression level

P value

Low

High

Age

 60 <

52

65

0.095

 60 ≥

53

40

Gender

 Male

74

66

0.306

 Female

31

39

Smoking status

 Smokers

69

73

0.658

 Nonsmokers

36

32

Histological type

 Squamous cell carcinoma

24

31

0.346

 Adenocarcinomas

81

74

Tumor stage

 I–II

44

53

0.268

 III–IV

61

52

Lymph node metastasis

 Yes

37

61

0.010

 No

68

44

Tumor size

 ≤ 3 cm

37

59

0.004

 >  3 cm

68

46

Differentiation

 Well and moderate

42

60

0.019

 Poor

63

45