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Table 4 Independent associations for EWGSOP2 cut-offs for muscle strength with anthropometric data and body composition parameters

From: Differences in sarcopenia prevalence between upper-body and lower-body based EWGSOP2 muscle strength criteria: the Tromsø study 2015–2016

Independent variable

Dependent variable

Model 1

Model 2

Beta (95% CI)

β

Beta (95% CI)

β

Grip strength probable sarcopenia cut-off

Weight (kg)

−8.6 (−12.9 to − 4.4)

−0.067

−8.8 (− 12.8 to − 4.7)

−0.064

Height (cm)

− 7.3 (− 10.0 to − 4.7)

−0.092

−6.1 (− 8.0 to − 4.1)

−0.071

BMI (kg/m2)

−0.7 (− 1.9 to 0.6)

− 0.018

− 1.1 (− 2.5 to − 0.2)

− 0.028

Waist circumference (cm)

−2.0 (− 5.5 to 1.6)

−0.018

−3.9 (− 7.5 to − 0.3)

−0.034

Total body fat (%)

1.4 (−0.8 to 3.7)

0.021

0.1 (− 2.1 to 2.3)

0.002

ALMheight2 (kg/m2)

−0.7 (− 1.0 to − 0.3)

−0.065

− 0.5 (− 0.8 to − 0.2)

−0.046

Chair stand probable sarcopenia cut-off

Weight (kg)

2.1 (−0.1 to 4.2)

0.032

5.0 (3.0 to 6.9)

0.075

Height (cm)

−2.9 (−4.2 to − 1.6)

−0.074

0.7 (−0.3 to 1.6)

0.017

BMI (kg/m2)

1.7 (1.1 to 2.4)

0.093

1.6 (0.9 to 2.2)

0.082

Waist circumference (cm)

5.3 (3.5 to 7.1)

0.098

5.5 (3.8 to 7.3)

0.100

Total body fat (%)

5.2 (4.1 to 6.3)

0.154

2.7 (1.6 to 3.7)

0.100

ALMheight2 (kg/m2)

−0.3 (−0.4 to −0.1)

−0.052

0.1 (−0.0 to 0.3)

0.021

  1. Numbers are unstandardized beta-coefficients (Beta) with 95% CIs and standardized beta coefficients (β). Coefficients indicate the resulting change on anthropometric and body composition data of reaching the probable sarcopenia cut-off point for either grip strength or chair stand tests. Model 1 is unadjusted. Model 2 (final model) is adjusted for sex, age, current smoker, CVD, current diabetes and educational level. ALMheight2 = Appendicular Lean Mass relative to squared body height. The Tromsø Study 2015–16