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Table 1 Patients characteristics

From: Prognostic factors after pulmonary metastasectomy of colorectal cancers: influence of liver metastasis

 

All patients (n = 524)

Group HM + PM (n = 106)

Group PM (n = 418)

P value

No. (%)

No. (%)

No. (%)

Age at PM (year, mean)

59.2 (30–83)

59.8 (30–83)

59.1 (31–82)

0.427

Sex

   

0.02

 Male

314 (40.1)

74 (30.2)

240 (57.4)

 

 Female

210 (59.9)

32 (69.8)

178 (42.6)

 

Location of primary tumor

   

0.001

 Colon

239 (45.6)

64 (60.4)

175 (41.9)

 

 Rectum

285 (54.4)

42 (39.6)

243 (58.1)

 

T stage of CRC

   

0.703

 pT1

11 (2.1)

2 (1.9)

9 (2.2)

 

 pT2

45 (8.6)

7 (6.6)

38 (9.1)

 

 pT3

345 (65.8)

75 (70.8)

270 (64.6)

 

 pT4

123 (23.5)

22 (20.8)

101 (24.2)

 

N stage of CRC

   

0.839

 pN0

155 (29.6)

34 (32.1)

121 (28.9)

 

 pN1

204 (38.9)

39 (36.8)

165 (39.5)

 

 pN2

164 (31.3)

33 (31.1)

131 (31.3)

 

 pN3

1 (0.2)

0 (0)

1 (0.2)

 

Disease-free intervala

   

0.927

  <12 months

112 (21.4)

23 (21.7)

89 (21.3)

 

  ≥12 months

412 (78.6)

83 (78.3)

329 (78.7)

 

Location of lung metastasis

   

0.787

 Unilateral

425 (81.1)

85 (80.2)

340 (81.3)

 

 Bilateral

99 (18.9)

21 (19.8)

78 (18.7)

 

Number of lung metastasis

   

0.289

 Single

349 (66.6)

66 (62.3)

283 (67.7)

 

 Multiple

175 (33.4)

40 (37.7)

135 (32.3)

 

Adjuvant chemotherapy

376 (71.8)

83 (78.3)

293 (70.1)

0.094

  1. PM pulmonary metastasectomy, CRC colorectal cancer
  2. aDisease-free interval was calculated as the interval between the date of colorectal cancer resection and the date of pulmonary metastasectomy