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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

 ASMIpa
T1T2T3
Men (n = 6390)
 Age (years)64.62 ± 8.2862.73 ± 7.9461.86 ± 8.17< 0.0001
 Height (cm)167.71 ± 5.78168.68 ± 5.91169.42 ± 5.81< 0.0001
 Weight (kg)60.67 ± 6.8670.33 ± 6.9278.34 ± 8.97< 0.0001
 BMI (kg/m2)21.55 ± 2.0524.71 ± 1.9727.27 ± 2.60< 0.0001
 ASMI (kg/m2)7.71 ± 0.378.53 ± 0.229.78 ± 0.73< 0.0001
 ASM (kg)21.71 ± 1.8724.31 ± 1.8328.12 ± 2.90< 0.0001
 SMM (kg)44.30 ± 3.6648.70 ± 3.7155.09 ± 5.34< 0.0001
 LAMM (kg)2.89 ± 0.263.25 ± 0.263.77 ± 0.41< 0.0001
 RAMM (kg)2.89 ± 0.273.25 ± 0.273.77 ± 0.44< 0.0001
 LLMM (kg)7.96 ± 0.708.90 ± 0.6910.29 ± 1.11< 0.0001
 RLMM (kg)7.97 ± 0.698.91 ± 0.6810.29 ± 1.08< 0.0001
 TMM (kg)22.59 ± 1.8824.39 ± 1.9426.96 ± 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 ± 18.81137.39 ± 18.14140.50 ± 19.52< 0.0001
 DBP (mmHg)79.16 ± 10.4481.48 ± 10.7083.31 ± 11.30< 0.0001
 PP (mmHg)57.18 ± 12.4057.79 ± 11.9259.03 ± 12.18< 0.0001
 ABI1.19 ± 0.111.21 ± 0.121.23 ± 0.12< 0.0001
 MAP (%)40.14 ± 3.8039.74 ± 3.9439.66 ± 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 ± 8.2660.16 ± 8.0659.60 ± 7.84< 0.0001
 Height (cm)157.73 ± 5.51158.38 ± 5.24158.63 ± 5.26< 0.0001
 Weight (kg)53.07 ± 5.9360.74 ± 5.5269.57 ± 7.74< 0.0001
 BMI (kg/m2)21.32 ± 2.0524.21 ± 1.8327.64 ± 2.66< 0.0001
 ASMI (kg/m2)6.77 ± 0.347.51 ± 0.188.41 ± 0.57< 0.0001
 ASM (kg)16.87 ± 1.5118.87 ± 1.3321.19 ± 2.05< 0.0001
 SMM (kg)34.63 ± 2.9637.96 ± 2.6841.81 ± 3.78< 0.0001
 LAMM (kg)2.21 ± 0.212.48 ± 0.192.79 ± 0.29< 0.0001
 RAMM (kg)2.21 ± 0.222.48 ± 0.202.79 ± 0.32< 0.0001
 LLMM (kg)6.23 ± 0.586.96 ± 0.537.82 ± 0.84< 0.0001
 RLMM (kg)6.22 ± 0.566.95 ± 0.517.79 ± 0.78< 0.0001
 TMM (kg)17.75 ± 1.5119.10 ± 1.4020.62 ± 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 ± 20.17135.19 ± 20.55140.02 ± 20.44< 0.0001
 DBP (mmHg)76.45 ± 11.0178.01 ± 11.0380.57 ± 11.00< 0.0001
 PP (mmHg)57.99 ± 12.7559.16 ± 13.0661.58 ± 13.31< 0.0001
 ABI1.16 ± 0.101.18 ± 0.101.19 ± 0.11< 0.0001
 MAP (%)42.70 ± 3.4342.53 ± 3.4042.25 ± 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