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Table 2 Characteristics of the study population according to ASMI tertiles

From: Low skeletal muscle mass is associated with arterial stiffness in community-dwelling Chinese aged 45 years and older

 

ASMI

pa

T1

T2

T3

Men (n = 6390)

 Age (years)

64.62 ± 8.28

62.73 ± 7.94

61.86 ± 8.17

< 0.0001

 Height (cm)

167.71 ± 5.78

168.68 ± 5.91

169.42 ± 5.81

< 0.0001

 Weight (kg)

60.67 ± 6.86

70.33 ± 6.92

78.34 ± 8.97

< 0.0001

 BMI (kg/m2)

21.55 ± 2.05

24.71 ± 1.97

27.27 ± 2.60

< 0.0001

 ASMI (kg/m2)

7.71 ± 0.37

8.53 ± 0.22

9.78 ± 0.73

< 0.0001

 ASM (kg)

21.71 ± 1.87

24.31 ± 1.83

28.12 ± 2.90

< 0.0001

 SMM (kg)

44.30 ± 3.66

48.70 ± 3.71

55.09 ± 5.34

< 0.0001

 LAMM (kg)

2.89 ± 0.26

3.25 ± 0.26

3.77 ± 0.41

< 0.0001

 RAMM (kg)

2.89 ± 0.27

3.25 ± 0.27

3.77 ± 0.44

< 0.0001

 LLMM (kg)

7.96 ± 0.70

8.90 ± 0.69

10.29 ± 1.11

< 0.0001

 RLMM (kg)

7.97 ± 0.69

8.91 ± 0.68

10.29 ± 1.08

< 0.0001

 TMM (kg)

22.59 ± 1.88

24.39 ± 1.94

26.96 ± 2.51

< 0.0001

 BFP (%)

21.10 (17.40, 24.40)

25.10 (22.00, 28.00)

23.90 (20.10, 27.80)

< 0.0001

 baPWV (cm/s)

1677.00 (1459.00, 1945.00)

1647.00 (1451.00, 1876.00)

1629.00 (1434.00, 1854.00)

< 0.0001

 SBP (mmHg)

134.35 ± 18.81

137.39 ± 18.14

140.50 ± 19.52

< 0.0001

 DBP (mmHg)

79.16 ± 10.44

81.48 ± 10.70

83.31 ± 11.30

< 0.0001

 PP (mmHg)

57.18 ± 12.40

57.79 ± 11.92

59.03 ± 12.18

< 0.0001

 ABI

1.19 ± 0.11

1.21 ± 0.12

1.23 ± 0.12

< 0.0001

 MAP (%)

40.14 ± 3.80

39.74 ± 3.94

39.66 ± 4.02

< 0.0001

 UT (s)

143.50 (132.00, 160.00)

144.00 (132.00, 159.00)

145.00 (134.00, 161.00)

0.0238

Women (n = 14,087)

 Age (years)

61.53 ± 8.26

60.16 ± 8.06

59.60 ± 7.84

< 0.0001

 Height (cm)

157.73 ± 5.51

158.38 ± 5.24

158.63 ± 5.26

< 0.0001

 Weight (kg)

53.07 ± 5.93

60.74 ± 5.52

69.57 ± 7.74

< 0.0001

 BMI (kg/m2)

21.32 ± 2.05

24.21 ± 1.83

27.64 ± 2.66

< 0.0001

 ASMI (kg/m2)

6.77 ± 0.34

7.51 ± 0.18

8.41 ± 0.57

< 0.0001

 ASM (kg)

16.87 ± 1.51

18.87 ± 1.33

21.19 ± 2.05

< 0.0001

 SMM (kg)

34.63 ± 2.96

37.96 ± 2.68

41.81 ± 3.78

< 0.0001

 LAMM (kg)

2.21 ± 0.21

2.48 ± 0.19

2.79 ± 0.29

< 0.0001

 RAMM (kg)

2.21 ± 0.22

2.48 ± 0.20

2.79 ± 0.32

< 0.0001

 LLMM (kg)

6.23 ± 0.58

6.96 ± 0.53

7.82 ± 0.84

< 0.0001

 RLMM (kg)

6.22 ± 0.56

6.95 ± 0.51

7.79 ± 0.78

< 0.0001

 TMM (kg)

17.75 ± 1.51

19.10 ± 1.40

20.62 ± 1.79

< 0.0001

 BFP (%)

29.10 (26.00, 31.90)

31.90 (29.10, 34.30)

34.30 (31.50, 36.80)

< 0.0001

 baPWV (cm/s)

1587.00 (1375.50, 1867.00)

1558.00 (1362.00, 1812.00)

1557.00 (1378.00, 1789.00)

< 0.0001

 SBP (mmHg)

132.40 ± 20.17

135.19 ± 20.55

140.02 ± 20.44

< 0.0001

 DBP (mmHg)

76.45 ± 11.01

78.01 ± 11.03

80.57 ± 11.00

< 0.0001

 PP (mmHg)

57.99 ± 12.75

59.16 ± 13.06

61.58 ± 13.31

< 0.0001

 ABI

1.16 ± 0.10

1.18 ± 0.10

1.19 ± 0.11

< 0.0001

 MAP (%)

42.70 ± 3.43

42.53 ± 3.40

42.25 ± 3.55

< 0.0001

 UT (s)

155.00 (140.00, 173.00)

156.00 (142.00, 174.00)

158.00 (143.00, 176.00)

< 0.0001

  1. Values are mean ± SD or medians (25th and 75th percentile)
  2. Abbreviations: BMI Body mass index, SMM Total muscle mass, LAMM Left arm muscle mass, RAMM Right arm muscle mass, LLMM Left arm muscle mass, RLMM Right leg muscle mass, TMM Trunk muscle mass, BFP total body fat percentage, ASM Appendicular skeletal muscle, ASMI Appendicular skeletal muscle index, baPWV Brachial-ankle pulse wave velocity, SBP systolic blood pressure, DBP diastolic blood pressure, PP Pulse pressure, ABI Ankle brachial index, MAP Mean artery pressure, UT Upstroke time
  3. aTest for difference between tertiles was performed using the Kruskal–Wallis test for non-normally distributed continuous variables and ANOVA analysis for normally distributed continuous variables
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BMC Public Health

ISSN: 1471-2458

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