Coefficients and Their Significance According to Different Variables
| Variable | Coefficient | SD | t test | P | Conclusion |
| Female | |||||
| Age | 0.039 | 0.051 | 0.760 | 0.448 | Not significant |
| Weight | −0.146 | 0.038 | −3.802 | 0.000 | Significant |
| Height | 12.441 | 10.941 | 1.137 | 0.256 | Not significant |
| Activity | 0.326 | 0.025 | 12.802 | 0.000 | Significant |
| rhTSH | −4.041 | 1.142 | −3.539 | 0.000 | Significant |
| Ingested-liquid volume | −2.271 | 0.404 | −5.619 | 0.000 | Significant |
| Time | −1.446 | 0.100 | −14.393 | 0.000 | Significant |
| Male | |||||
| Age | 0.157 | 0..135 | 1.164 | 0.247 | Not significant |
| Weight | −0.154 | 0.054 | −2.838 | 0.005 | Significant |
| Height | 19.417 | 21.228 | 0.915 | 0.362 | Not significant |
| Activity | 0.328 | 0.055 | 6.012 | 0.000 | Significant |
| rhTSH | −9.341 | 3.907 | −2.391 | 0.019 | Significant |
| Ingested-liquid volume | −0.667 | 1.164 | −0.573 | 0.568 | Not significant |
| Time | −2.428 | 0.278 | −8.727 | 0.000 | Significant |
| Normal BMI | |||||
| Age | −0.028 | 0.081 | −0.349 | 0.728 | Not significant |
| Sex | 3.548 | 2.208 | 1.607 | 0.110 | Not significant |
| Activity | 0.360 | 0.040 | 9.064 | 0.000 | Significant |
| rhTSH | −5.330 | 1.643 | −3.243 | 0.001 | Significant |
| Ingested-liquid volume | −2.574 | 0.818 | −3.148 | 0.002 | Significant |
| Time | −1.597 | 0.177 | −9.010 | 0.000 | Significant |
| Overweight | |||||
| Age | 0.092 | 0.080 | 1.149 | 0.252 | Not significant |
| Sex | 4.037 | 2.298 | 1.757 | 0.081 | Not significant |
| Activity | 0.311 | 0.030 | 10.460 | 0.000 | Significant |
| rhTSH | −5.430 | 2.441 | −2.224 | 0.028 | Significant |
| Ingested-liquid volume | −1.838 | 0.647 | −2.842 | 0.005 | Significant |
| Time | −1.744 | 0.180 | −9.682 | 0.000 | Significant |
| Obese | |||||
| Age | 0.175 | 0.170 | 1.033 | 0.305 | Not significant |
| Sex | 3.697 | 4.244 | 0.871 | 0.387 | Not significant |
| Activity | 0.372 | 0.059 | 6.290 | 0.000 | Significant |
| rhTSH | 4.194 | 2.962 | 1.416 | 0.162 | Not significant |
| Ingested-liquid volume | −1.787 | 0.991 | −1.804 | 0.076 | Not significant |
| Time | −1.684 | 0.219 | −7.702 | 0.000 | Significant |
| 20–39 y old | |||||
| Sex | 9.761 | 4.831 | 2.021 | 0.045 | Significant |
| Weight | −0.173 | 0.121 | −1.424 | 0.157 | Not significant |
| Height | −14.304 | 23.165 | −0.618 | 0.538 | Not significant |
| Activity | 0.268 | 0.040 | 6.718 | 0.000 | Significant |
| rhTSH | −2.669 | 1.919 | −1.390 | 0.167 | Not significant |
| Ingested-liquid volume | −2.832 | 0.944 | −3.001 | 0.003 | Significant |
| Time | −1.702 | 0.201 | −8.480 | 0.000 | Significant |
| 40–64 y old | |||||
| Sex | 1.485 | 2.545 | 0.584 | 0.560 | Not significant |
| Weight | −0.128 | 0.035 | −3.698 | 0.000 | Significant |
| Height | 25.323 | 11.500 | 2.202 | 0.029 | Significant |
| Activity | 0.351 | 0.031 | 11.288 | 0.000 | Significant |
| rhTSH | −5.819 | 1.640 | −3.548 | 0.000 | Significant |
| Ingested-liquid volume | −2.256 | 0.539 | −4.183 | 0.000 | Significant |
| Time | −1.585 | 0.141 | −11.216 | 0.000 | Significant |
| ≥65 y old | |||||
| Sex | −17.999 | 4.331 | −4.156 | 0.000 | Significant |
| Weight | 0.158 | 0.150 | 1.048 | 0.299 | Not significant |
| Height | 71.859 | 20.425 | 3.518 | 0.001 | Significant |
| Activity | 0.018 | 0.002 | 9.459 | 0.000 | Significant |
| rhTSH | −0.464 | 2.598 | −0.179 | 0.859 | Not significant |
| Ingested-liquid volume | −4.174 | 0.707 | −5.906 | 0.000 | Significant |
| Time | −0.013 | 0.003 | −4.530 | 0.000 | Significant |