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Table 1 Clinicopathological features of the unmatched and propensity scored-matched patients

From: Preoperative serum C-reactive protein levels and postoperative survival in patients with esophageal squamous cell carcinoma: a propensity score matching analysis

 

Unmatched

Matched

Low CRP(n = 711)

High CRP(n = 250)

P-value

Low CRP(n = 176)

High CRP(n = 176)

P-value

Gender

 Male

546 (76.7%)

203 (81.2%)

0.137

136 (77.3%)

141 (80.1%)

0.517

 Female

165 (23.3%)

47 (18.8%)

 

40 (22.7%)

35 (19.9%)

Age, y

58 (49,65)

60 (50,70)

0.001

60 (57–63)

60 (57–63)

0.735

Smoking

 Yes

455 (64%)

173 (69.2%)

0.137

112 (63.6%)

121 (68.7%)

0.312

 No

256 (36%)

77 (30.8%)

 

64 (36.4%)

55 (31.3%)

Drinking

 Yes

238 (33.5%)

95 (38.2%)

0.182

62 (35.2%)

70 (39.4%)

0.417

 No

473 (66.5%)

155 (61.8%)

 

114 (64.8%)

106 (60.6%)

Tumor site

 Cervix

17 (2.4%)

1 (0.4%)

 

6 (3.4%)

1 (0.6%)

0.777

 Up

104 (14,6%)

40 (16.0%)

0.635

22 (12.5%)

31 (17.7%)

 Middle

350 (49.3%)

123 (49.2%)

 

94 (53.4%)

83 (47.4%)

 Low

240 (33.7%)

86 (34.4%)

 

54 (30.7%)

60 (34.2%)

TNM stage

 IA

6 (0.8%)

3 (1.2%)

 

3 (1.7%)

0

0.970

 IB

94 (13.2%)

17 (6.8%)

 

13 (7.4%)

18 (10.2%)

 IIA

117 (16.5%)

44 (17.6%)

0.254

30 (17.0%)

32 (18.2%)

 IIB

194 (27.3%)

69 (27.6%)

 

44 (25.0)

42 (23.9%)

 IIIA

158 (22.2%)

68 (27.2%)

 

47 (26.7%)

44 (25.0%)

 IIIB

83 (11.7%)

35 (14%)

 

26 (14.8%)

23 (13.1%)

 IIIC

59 (8.3%)

14 (5.6%)

 

13 (7.4%)

17 (9.7%)

Differentiation

 Well

192 (27%)

86 (34.4%)

 

57 (32.4%)

63 (35.3%)

0.823

 Moderate

404 (56.8%)

120 (48.0%)

0.086

85 (48.3%)

78 (44.3%)

 Poor

115 (16.2%)

44 (17.6%)

 

34 (19.3%)

36 (20.5%)

Surgical incision

 Left

434 (61.0%)

165 (66.0%)

0.176

105 (59.7%)

117 (66.5%)

0.199

 Right

277 (39.0%)

85 (34.0%)

 

71 (40.3%)

59 (33.5%)

  1. Abbreviations: CRP C-reactive protein