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Table 2 Univariate analysis of long-term survival using Cox regression for each variable

From: Impact of frailty on 5-year survival in patients older than 70 years undergoing colorectal surgery for cancer

Variables

Total N (%) 149 (100)

Alive 101 (67.8%)

Death 48 (32.2%)

P

HR (CI 95%)

Age

 Median (IQR)

75 (72–80)

74 (72–79)

78 (73–80.75)

0.140

1.03 (0.99–1.09)

Gender

 Men

96 (64.4)

61 (60.4)

35 (72.9)

0.074

0.56 (0.30–1.07)

 Women

53 (35.6)

40 (39.6)

13 (27.1)

ASA

 I–II

47 (31.5)

36 (35.6)

11 (22.9)

0.241

1.50 (0.76–2.94)

 III–IV

102 (68.5)

65 (64.4)

37 (77.1)

Charlson Index

 Median (IQR)

3.0 (2.0–4.0)

3.0 (2.0–3.0)

3.0 (2.0–5.0)

0.001*

1.37 (1.17–1.60)

Barthel

 < 80

14 (9.4)

8 (7.9)

6 (12.5)

0.314

0.64 (0.27–1.52)

 ≥ 80

135 (90.6)

93 (92.1)

42 (87.5)

Lawton-Brody

 Median (IQR)

6.0 (5.0–8.0)

7.0 (5.0–8.0)

6.0 (4.0–7.0)

0.011*

0.85 (0.76–0.97)

Pfeiffer

 < 3

140 (94.0)

97 (96.0)

43 (89.6)

0.157

1.95 (0.77–4.94)

 ≥ 3

9 (6.0)

4 (4.0)

5 (55.6)

BMIa

 Mean ± SD

26.8 (± 4.0)

26.7 (± 4.1)

26.9 (± 3.7)

0.938

1.00 (0.94–1.07)

MNAb

 Median IQR

10.0 (9.0–12.0)

10.0 (9.0–12.5)

10.5 (9.0–12.0

0.588

0.97 (0.85–1.09)

Frailty

 No

90(60.4)

64 (63.4)

26 (54.2)

0.249

1.40 (0.79–2.47)

 Yes

59 (39.6)

37 (36.6)

22 (45.8)

Hemoglobin gr/dL

 Mean (±SD)

12.5 (± 2.2)

12.6 (± 2.1)

12.3 (± 2.3)

0.703

0.98 (0.86–1.11)

Creatinine mg/dL

 Median (IQR)

0.96 (0.79–1.13)

0.94 (0.79–1.07)

1.00 (0.80–1.33)

0.060

1.66 (0.98–2.81)

Albumin gr/dL

 Mean (±SD)

3.8 (± 0.5)

3.8 (± 0.5)

3.7 (± 0.5)

0.430

0.749 (0.37–1.54)

Laparoscopic approach

n (%)

56 (38.9)

41 (40.6)

15 (31.3)

0.118

0.635 (0.36–1.12)

Anastomosis

 No

22 (14.8)

10 (9.9)

12 (25.0)

0.024*

0.47 (0.24–0.91)

 Yes

127 (85.2)

91 (90.1)

36 (75.0)

Transfusions

 No

116 (77.9)

80 (79.2)

36 (75.0)

0.516

1.24 (0.65–2.39)

 Yes

33 (22.1)

21 (20.8)

12 (25.0)

T

 1–2

45 (30.2)

34 (33.7)

11 (22.9)

0.228

1.51 (0.77–2.97)

 3–4

104 (69.8)

67 (66.3)

37 (77.1)

N

 0

102 (68.5)

76 (75.2)

26 (25.5)

0.005*

2.27 (1.29–4.01)

 1

47 (31.5)

25 (24.8)

22 (45.8)

M

 0

142 (95.3)

100 (99.0)

42 (87.5)

< 0.001*

6.21 (2.59–14.93)

 1

7 (4.7)

1 (1.0)

6 (12.5)

TNM stage

 I–II

99 (66.4)

74 (73.3)

25 (52.1)

0.004*

2.29 (1.30–4.04)

 III–IV

50 (33.6)

27 (26.7)

23 (15.4)

Anastomosis dehiscence

 No

139 (93.3)

97 (96.0)

42 (87.5)

0.013*

2.95 (1.25–6.96)

 Yes

10 (6.7)

4 (4.0)

6 (12.5)

Chemotherapy

 No

112 (75.2)

75 (74.3)

37 (77.1)

0.890

0.95 (0.49–1.87)

 Yes

37 (24.8)

26 (25.7)

11 (22.9)

  1. aBMI body mass index
  2. bMNA Mini-Nutritional-Assessment
  3. *Statistically significant