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Table 1 Baseline characteristics of participants according to the SI

From: Sarcopenia index as a predictor of clinical outcomes among older adult patients with acute exacerbation of chronic obstructive pulmonary disease: a cross-sectional study

Characteristics

Total

(n = 306)

P

Frequent exacerbators

(n = 106)

P

Non-frequent exacerbators (n = 200)

P

low SI

(SI < 91.75, n = 153)

high SI

(SI ≥ 91.75, n = 153)

low SI

(SI < 82.94, n = 53)

high SI

(SI ≥ 82.94,

n = 53)

low SI

(SI < 101.41, n = 100)

high SI

(SI ≥ 101.41, n = 100)

Age (years), mean ± SD

72.08 ± 7.12

70.5 ± 7.01

0.051

71.51 ± 7.6

70.87 ± 7.06

0.653

71.9 ± 6.85

70.8 ± 7.13

0.267

BMI (kg/m2), mean ± SD

18.65 ± 3.22

21.23 ± 3.45

 < 0.001

18.08 ± 2.88

20.38 ± 4.14

0.001

19.36 ± 3.19

21.26 ± 3.43

 < 0.001

Male, n (%)

126 (82.4)

134 (87.6)

0.201

43(81.1)

47(88.7)

0.278

81(81)

89(89.0)

0.113

Current smoker, n (%)

32 (20.9)

34 (22.2)

0.781

12(22.6)

9(17.0)

0.465

17(17)

28(28.0)

0.063

FEV1% predicted, mean ± SD

40.53 ± 17.17

45.01 ± 18.29

0.028

38.61 ± 17.66

36.47 ± 14.97

0.502

43.88 ± 17.19

47.2 ± 18.8

0.193

WBC (× 10^9/L), mean ± SD

8.28 ± 3.68

8.46 ± 3.21

0.636

9.08 ± 4.07

8.2 ± 2.99

0.206

8.06 ± 3.54

8.39 ± 3.22

0.494

CRP (mg/L), mean ± SD

23.21 ± 43.55

18.45 ± 36.83

0.302

21.65 ± 45.26

34.18 ± 56.14

0.209

16.82 ± 29.32

17.32 ± 36.02

0.914

ALB (g/L), mean ± SD

37.29 ± 4.05

39.53 ± 4.27

 < 0.001

37.01 ± 3.52

38.26 ± 4.56

0.119

37.53 ± 4.34

40.10 ± 4.00

 < 0.001

CAT, mean ± SD

19.45 ± 6.18

15.92 ± 6.3

 < 0.001

20.62 ± 5.83

19.43 ± 7.13

0.350

17.01 ± 6.43

15.87 ± 5.77

0.188

GOLD, n (%)

  

0.007

  

0.918

  

0.135

1–2

34 (22.2)

58 (37.9)

 

9 (17.0)

10 (18.7)

0.800

30 (30)

43 (43.0)

0.056

3–4

119 (77.8)

95 (62.1)

 

43 (81.1)

44 (83.0)

0.800

70 (70)

57 (57.0)

0.056

mMRC, n (%)

  

0.018

  

0.423

  

0.616

0–2

82 (53.6)

96 (62.7)

 

25 (47.2)

29 (54.7)

 

60 (60.0)

64 (64.0)

 

3–4

71 (46.4)

57(37.3)

 

28 (52.8)

24 (45.3)

 

40 (40)

36 (36.0)

 

Comorbidities, n (%)

Diabetes

13(8.5)

12(7.8)

0.835

6(11.3)

5(9.4)

0.750

6(6)

8(8.0)

0.579

Hypertension

42(27.5)

38(24.8)

0.603

13(24.5)

15(28.3)

0.659

23(23)

29(29.0)

0.333

Coronary Disease

14(9.2)

17(11.1)

0.570

4(7.5)

6(11.3)

0.506

10(10)

11(11.0)

0.818

Arrhythmia

24(15.7)

13(8.5)

0.054

7(13.2)

9(17.0)

0.587

12(12)

9(9.0)

0.489

  1. SI Sarcopenia index, BMI Body mass index, FEV1% predicted: Percentage predicted forced expiratory volume in 1 s, WBC White blood cells, CRP C-reactive protein, ALB Albumin, GOLD Global initiative for chronic Obstructive Lung Disease, CAT COPD Assessment Test, mMRC modified Medical Research Council, SD Standard deviation
  2. GOLD grade 1–2: FEV1% predicted ≥ 50%; GOLD grade 3–4: FEV1% predicted < 50%
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BMC Geriatrics

ISSN: 1471-2318

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