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Table 1 Demographic data

From: Advantage of laparoscopy surgery for elderly colorectal cancer patients without compromising oncologic outcome

Characteristic

Open (n = 662)

Laparoscopy (n = 305)

P

Age (y/o)

80.4 ± 4.2

80.4 ± 4.6

0.878

Sex (male)

369 (55.7)

166 (54.4)

0.703

Body mass index (kg/m2)

  

0.014

 Underweight (< 18.5)

54 (8.3)

16 (5.2)

 

 Healthy (18.5–25)

406 (62.1)

170 (55.7)

 

 Overweight (25–30)

168 (25.7)

98 (32.1)

 

 Obese (> 30)

26 (4.0)

21 (6.9)

 

Hypertension

384 (58.0)

205 (67.2)

0.006

Cardiac disease

113 (17.1)

60 (19.7)

0.326

Cerebral vascular disease

53 (8.0)

20 (6.6)

0.428

Asthma

34 (5.1)

14 (4.6)

0.717

Diabetes mellitus

171 (25.8)

74 (24.3)

0.602

Cirrhosis

11 (1.7)

6 (2.0)

0.737

TNM stage

  

0.003

 0

8 (1.2)

8 (2.6)

 

 1

83 (12.5)

62 (20.3)

 

 2

294 (44.4)

129 (42.3)

 

 3

277 (41.8)

106 (34.8)

 

CEA > 5 (ng/ml)

238 (36.0)

75 (24.6)

 < 0.001

Hb < 10 (g/dL)

176 (26.6)

76 (24.9)

0.583

Albumin < 3.5 (g/dL)

155 (23.4)

45 (14.8)

0.002

AST > 34 (U/L)

50 (7.6)

26 (8.5)

0.602

Total bilirubin > 1.3 (mg/dL)

16 (2.4)

7 (2.3)

0.908

Cr > 1.27 (mg/dL)

141 (21.3)

79 (25.9)

0.113

  1. Data are presented as n (%) unless otherwise indicated. CEA carcinoembryonic antigen, Hb hemoglobin, AST aspartate transaminase, Cr creatinine