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Table 5 Summary of multiple linear regression analysis to identify independent variables predictive of 30CST and 5TSTS

From: Performance on sit-to-stand tests in relation to measures of functional fitness and sarcopenia diagnosis in community-dwelling older adults

Variable Univariate Final Modela
5TSTS 30CST 5TSTSb 30CSTc
Coefficientsd
(95% CI)
P-value Coefficientsd
(95% CI)
P-value Coefficientsd
(95% CI)
β P-value Coefficientsd
(95% CI)
β P-value
Grip Strength, kg −0.151 (−0.192, −0.110) < 0.001 0.222 (0.173, 0.272) < 0.001 −0.061 (− 0.115, 0.008) −0.098 0.025 0.186 (0.114, 0.258) 0.243 < 0.001
TUG, s 0.760 (0.700, 0.821) < 0.001 −0.724 (− 0.808, − 0.640) < 0.001 0.593 (0.510, 0.676) 0.504 < 0.001 − 0.198 (− 0.322, − 0.074) −0.137 0.002
Gait Speed, m/s −8.394 (−9.292, −7.496) < 0.001 9.992 (8.874, 11.110) < 0.001     2.933 (1.164, 4.701) 0.152 0.001
6MWT, m −0.021 (−0.024, − 0.019) < 0.001 0.028 (0.025, 0.031) < 0.001 −0.009 (− 0.012, − 0.005) −0.212 < 0.001 0.015 (0.011, 0.019) 0.298 < 0.001
SMI (kg/m2) 0.189 (−0.075, 0.454) 0.160 −0.338 (− 0.663, − 0.013) 0.042       
FMI (kg/m2) 0.253 (0.063, 0.444) 0.009 −0.503 (− 0.727, − 0.278) < 0.001 −1.155 (−1.494, − 0.816) −0.455 < 0.001 0.547 (− 0.091, 1.184) 0.176 0.093
Weight, kg 0.034 (0.010, 0.058) 0.006 −0.066 (− 0.095, − 0.037) < 0.001 0.169 (0.123, 0.215) 0.470 < 0.001 −0.124 (− 0.212, − 0.035) −0.281 0.006
Height, cm −0.021 (− 0.057, 0.016) 0.266 0.011 (− 0.033, 0.056) 0.616     −0.143 (− 0.225, − 0.061) −0.214 0.001
Age, yrs 0.203 (0.164, 2.42) < 0.001 −0.248 (− 0.296, − 0.200) < 0.001 0.040 (0.002, 0.078) 0.065 0.041 − 0.085 (− 0.136, − 0.035) −0.113 0.001
Gender, 1=F, 0=M 0.090 (−0.560, 0.740) 0.786 −0.278 (−1.077, 0.522) 0.495 2.594 (1.533, 3.654) 0.268 < 0.001 −1.825 (−3.256, −0.395) − 0.154 0.012
Physical activity hours/week −0.028 (− 0.055, − 0.002) 0.037 0.024 (− 0.009, 0.056) 0.156       
  1. SMI appendicular skeletal mass index, 30CST 30 s chair stands, 5TSTS five times sit to stand, TUG timed-Up-and-Go, 6MWT six-minute walk test, F females, M males, FMI fat mass index
  2. a Obtained using backward elimination multiple linear regression with p = 0.05/0.10 to enter/remove
  3. b 5STS model adjusted R2 = 0.480
  4. c 30STS model adjusted R2 = 0.426
  5. d Unstandardized Coefficient, B
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