Table 3: THLM model for physical fitness of 723 participants in the Bad Schönborn study.

Fixed effects
(in order of influence according to -value)

ParameterEstimate[95% CI]SE

Constant term93.74[92.96–94.52]0.4055611.18<.01
Sex (if male)7.00[5.86–8.14]0.58145.04<.01
Age2 (per year2)−0.0072[−0.0095–−0.0049]0.001237.75<.01
Age (per year)−0.20[−0.28–−0.12]0.04123.09<.01
Athlete (if yes)1.50[0.83 to 2.17]0.3419.31<.01
SA (per MET-h)0.052[0.029–0.076]0.05219.12<.01
SES (per enhancing social stratum)0.91[0.47–1.35]0.2216.54<.01
Agesex−0.083[−0.145–−0.020]0.0326.66.01
BMI (per BMI point)−0.18[−0.36–−0.01]0.0943.51.06
HA (per MET-h)0.013[−0.001–0.026]0.0673.47.06
AgeBMI−0.018[−0.362–0.009]0.0103.11.08
Age2BMI0.00048[−0.00008–0.00100]0.000292.81.09

Random effects

ParameterEstimate[95% CI]SEWald

Constant term14.23[11.23–18.03]1.728.27<.01
BMI0.12[0.04–0.35]0.061.81.07
Age0.0070[0.0021–0.0223]0.00411.69.09

Model fit

Correlation between predicted and measured values: = .94
−2 Log-Likelihood: 8207.19