Table 4.
Estimated coefficients and corresponding confidence intervals of GLM regressors, calculated for each physical activity parameter recorded by Dynaport MiniMod monitor
| PA measures | Predictor | B coefficients | Std error | 95% CI | p-value |
|---|---|---|---|---|---|
| MM steps | Visit | ||||
| -baseline | 0.029 | 0.059 | 0.086–0.145 | 0.033 | |
| -6 months follow-up | -0.08 | 0.077 | -0.232–0.072 | 0.301 | |
| -12 months follow-up | Reference group | Reference group | Reference group | Reference group | |
| Center | |||||
| -Athens | 0.127 | 0.107 | -0.081–0.336 | 0.232 | |
| -Edinburgh | -0.237 | 0.124 | -0.479–0.005 | 0.055 | |
| -Leuven | -0.054 | 0.081 | -0.212–0.104 | 0.503 | |
| -London | -0.156 | 0.093 | -0.337–0.026 | 0.093 | |
| -Groningen | Reference group | Reference group | Reference group | Reference group | |
| Age | -0.006 | 0.003 | -0.013–4.4E-5 | 0.048 | |
| FEV1% predicted | 0.006 | 0.001 | 0.004–0.009 | <0.001 | |
| RV/TLC% predicted | 0.003 | 0.002 | -0.001–0.007 | 0.11 | |
| QMVC | -2.10E-4 | 0.003 | -0.005–0.005 | 0.932 | |
| 6MWD | 0.003 | 3.00E-4 | 0.002–0.003 | <0.001 | |
| Temperature | 0.006 | 0.006 | -0.006–0.018 | 0.313 | |
| Daylength (hrs) | |||||
| -<7.8 | -0.051 | 0.354 | -0.746–0.643 | 0.885 | |
| -20.2 | -0.091 | 0.076 | -0.240–0.058 | 0.23 | |
| ->12.4 | Reference group | Reference group | Reference group | Reference group | |
| Rainfall (hrs/day) | |||||
| -<1.7 | -0.258 | 0.105 | -0.412 | 0.014 | |
| -4.3 | -0.354 | 0.128 | -0.5 | 0.006 | |
| ->2.6 | Reference group | Reference group | Reference group | Reference group | |
| MM walktime | Visit | ||||
| -baseline | 0.026 | 0.055 | -0.081–0.133 | 0.632 | |
| -6 months follow-up | -0.09 | 0.072 | -0.231–0.051 | 0.21 | |
| -12 months follow-up | Reference group | Reference group | Reference group | Reference group | |
| Center | |||||
| -Athens | 0.107 | 0.099 | -0.440–0.011 | 0.278 | |
| -Edinburgh | -0.214 | 0.115 | -0.188–0.104 | 0.062 | |
| -Leuven | -0.042 | 0.075 | -0.334 | 0.57 | |
| -London | -0.169 | 0.085 | -0.082–0.133 | 0.048 | |
| -Groningen | Reference group | Reference group | Reference group | Reference group | |
| Age | -0.005 | 0.003 | -0.0109 | 0.048 | |
| FEV1% predicted | 0.005 | 0.001 | 0.003–0.008 | <0.001 | |
| RV/TLC% predicted | 0.003 | 0.002 | -0.001–0.006 | 0.147 | |
| QMVC | 0.002 | 0.002 | -0.003–0.067 | 0.396 | |
| 6MWD | 0.002 | 2.00E-4 | 0.002–0.003 | <0.001 | |
| Temperature | 0.006 | 0.006 | -0.005–0.016 | 0.312 | |
| Daylength (hrs) | |||||
| -<7.8 | -0.027 | 0.328 | -0.669–0.615 | 0.934 | |
| -20.2 | -0.098 | 0.07 | -0.235–0.040 | 0.165 | |
| ->12.4 | Reference group | Reference group | Reference group | Reference group | |
| Rainfall (hrs/day) | |||||
| -<1.7 | -0.227 | 0.097 | -0.382 | 0.02 | |
| -4.3 | -0.309 | 0.118 | -0.462 | 0.009 | |
| ->2.6 | Reference group | Reference group | Reference group | Reference group | |
| MM intensity | Visit | ||||
| -baseline | 0.015 | 0.015 | -0.015–0.045 | 0.333 | |
| -6 months follow-up | 0.009 | 0.02 | -0.030–0.048 | 0.648 | |
| -12 months follow-up | Reference group | Reference group | Reference group | Reference group | |
| Center | |||||
| -Athens | 0.043 | 0.027 | -0.011–0.097 | 0.118 | |
| -Edinburgh | 0.035 | 0.033 | -0.028–0.099 | 0.279 | |
| -Leuven | -0.027 | 0.021 | -0.067–0.014 | 0.198 | |
| -London | 0.081 | 0.024 | 0.035–0.127 | 0.001 | |
| -Groningen | Reference group | Reference group | Reference group | Reference group | |
| Age | -0.006 | 8.00E-4 | -0.003 | <0.001 | |
| FEV1% predicted | 0.002 | 3.00E-4 | 0.001–0.002 | <0.001 | |
| RV/TLC% predicted | -3.50E-4 | 5.00E-4 | -0.001–0.001 | 0.476 | |
| QMVC | -0.001 | 6.00E-4 | -0.002914 | 0.036 | |
| 6MWD | 4.80E-4 | 6.50E-5 | 3.6E-4–0.001 | <0.001 | |
| Temperature | -7.50E-5 | 0.002 | -0.003–0.003 | 0.961 | |
| Daylength (hrs) | |||||
| -<7.8 | 0.043 | 0.092 | -0.137–0.222 | 0.642 | |
| -20.2 | -0.004 | 0.019 | -0.042–0.033 | 0.817 | |
| ->12.4 | Reference group | Reference group | Reference group | Reference group | |
| Rainfall (hrs/day) | |||||
| -<1.7 | -0.012 | 0.027 | -0.065–0.042 | 0.668 | |
| -4.3 | -0.035 | 0.033 | -0.100–0.029 | 0.284 | |
| ->2.6 | Reference group | Reference group | Reference group | Reference group | |
| MMVMU | Visit | ||||
| -baseline | 0.085 | 0.056 | 0.024–0.194 | 0.026 | |
| -6 months follow-up | -0.01 | 0.072 | -0.152–0.131 | 0.885 | |
| -12 months follow-up | Reference group | Reference group | Reference group | Reference group | |
| Center | |||||
| -Athens | 0.129 | 0.1 | -0.067–0.325 | 0.197 | |
| -Edinburgh | -0.065 | 0.116 | -0.293–0.163 | 0.576 | |
| -Leuven | -0.114 | 0.076 | -0.263–0.035 | 0.133 | |
| -London | 0.002 | 0.087 | -0.168–0.172 | 0.983 | |
| -Groningen | Reference group | Reference group | Reference group | Reference group | |
| Age | -0.016 | 0.003 | -0.012 | <0.001 | |
| FEV1% predicted | 0.008 | 0.001 | 0.005–0.010 | <0.001 | |
| RV/TLC% predicted | 0.001 | 0.002 | -0.003–0.004 | 0.699 | |
| QMVC | -0.005 | 0.002 | -0.00951 | 0.03 | |
| 6MWD | 0.003 | 2.00E-4 | 0.002–0.003 | <0.001 | |
| Temperature | 0.001 | 0.006 | -0.010–0.012 | 0.83 | |
| Daylength (hrs) | |||||
| -<7.8 | -0.258 | 0.332 | -0.909–0.394 | 0.438 | |
| -20.2 | -0.066 | 0.07 | -0.203–0.070 | 0.342 | |
| ->12.4 | Reference group | Reference group | Reference group | Reference group | |
| Rainfall (hrs/day) | |||||
| -<1.7 | -0.238 | 0.098 | -0.388 | 0.016 | |
| -4.3 | -0.339 | 0.119 | -0.468 | 0.005 | |
| ->2.6 | Reference group | Reference group | Reference group | Reference group |
Abbreviations: QMVC, quadriceps maximal voluntary contraction; RV/TLC%, ratio of residual volume to total lung volume percentage predicted; E-4, 10-4; Ε-5, 10-5.