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Table 1 Patient characteristics

From: Age-dependent differences in the prognostic relevance of body composition-related variables in type A aortic dissection patients

Variables

All

Young

Elderly

p

(n = 258)

(n = 110)

(n = 148)

Age (year)

53.9 ± 11.1

43.9 ± 10.4

59.9 ± 13.1

0.016

Male

188 (72.9)

78 (70.9)

110 (74.3)

0.542

Body height (cm)

163.9 ± 9.0

167.9 ± 6.5

161.1 ± 8.9

0.041

Body weight (kg)

73.5 ± 11.8

77.8 ± 10.8

68.2 ± 13.6

0.034

BMI (kg/m2)

26.2 ± 4.1

24.8 ± 4.0

26.4 ± 3.9

0.039

BMI ≥ 18.5 kg/m2

247 (95.7)

101 (91.9)

146 (98.6)

0.007

Normal weight

82 (33.2)

39 (38.6)

43 (29.5)

0.275

Overweight

95 (38.5)

37 (36.6)

58 (39.7)

0.360

Obesity

70 (28.3)

25 (24.8)

45 (30.8)

0.170

Body surface area (m2)

1.76 ± 0.3

1.80 ± 0.3

1.71 ± 0.2

0.031

Lean body mass (kg)

61.4 ± 8.4

63.7 ± 6.3

60.7 ± 4.5

0.028

Lean body mass index(kg/m2)

19.9 ± 1.7

20.1 ± 1.7

18.3 ± 1.3

0.034

Hypertension

216 (83.7)

80 (72.7)

136 (91.9)

0.000

Diabetes mellitus

43 (16.7)

12 (10.9)

31 (21.0)

0.032

Hyperlipidemia

79 (30.6)

29 (26.4)

50 (33.8)

0.201

OSAS

25 (9.7)

5 (4.6)

20 (13.5)

0.016

COPD

26 (10.1)

10(9.1)

16 (10.8)

0.650

Renal dysfunctiona

60 (23.3)

28(25.5)

32 (21.6)

0.471

Moderate or severe AR

94 (36.4)

41 (37.3)

53 (35.8)

0.809

Malperfusion syndromes

46 (17.8)

21 (19.1)

25 (16.9)

0.648

 Cerebral

10 (3.9)

4 (3.6)

6 (4.0)

0.864

 Myocardial

10 (3.9)

5 (4.5)

5 (3.4)

0.631

 Renal

14 (5.4)

7 (6.4)

7 (4.7)

0.567

 Iliofemoral

6 (2.3)

3 (2.7)

3 (2.0)

1.000

 Gastrointestinal

6 (2.3)

2 (1.8)

4 (2.7)

0.961

LVEF, %

62.7 ± 6.7

62.9 ± 8.9

61.2 ± 7.7

0.618

Serum creatinine (umol/L)

118.8 ± 98

110.6 ± 88

119.8 ± 108

0.136

  1. Bold values indicate p < 0.05
  2. Values are n (%) or mean ± SD
  3. AR, aortic valve regurgitation; LVEF, left ventricular ejection fraction; COPD, chronic obstructive pulmonary disease; OSAS, obstructive sleep apnoea syndrome
  4. Clinical presentation of under weight (BMI < 18.5 kg/m2), normal weight (18 ≤ BMI < 25 kg/m2), overweight (25 ≤ BMI < 30 kg/m2), and obese (30 ≤ BMI < 35 kg/m2) patients with aortic dissection Type A
  5. aDefined as preoperative creatinine greater than 1.5 mg/dL