Table 4. Polychoric correlation coefficients (PCC) between self-reported PA (PAS2) and objectively measured PA (Acc+HR).
| Sedentary (<1.5 MET) |
Light PA (1.5 - 3 MET) |
Moderate PA (3 - 6 MET) |
Vigorous PA (> 6 MET) |
|||||
|---|---|---|---|---|---|---|---|---|
| PCC | p-value | PCC | p-value | PCC | p-value | PCC | p-value | |
| All | 0.197 | 0.053 | 0.180 | 0.053 | 0.204 | 0.053 | 0.535 | 0.044 |
| Gender | ||||||||
| Men | 0.222 | 0.085 | 0.207 | 0.085 | 0.338 | 0.079 | 0.431 | 0.078 |
| Women | 0.195 | 0.068 | 0.182 | 0.068 | 0.103 | 0.070 | 0.593 | 0.053 |
| Age Group | ||||||||
| 30-39 | 0.341 | 0.096 | 0.320 | 0.098 | 0.325 | 0.097 | 0.391 | 0.098 |
| 40-49 | 0.143 | 0.093 | 0.104 | 0.094 | 0.209 | 0.091 | 0.578 | 0.069 |
| 50-60 | 0.133 | 0.086 | 0.069 | 0.089 | 0.192 | 0.084 | 0.529 | 0.076 |
| BMI | ||||||||
| Normal Weight | 0.189 | 0.075 | 0.208 | 0.074 | 0.142 | 0.076 | 0,568 | 0.058 |
| Overweight | 0.218 | 0.088 | 0.190 | 0.089 | 0.206 | 0.089 | 0.487 | 0.080 |
| Obese | 0.152 | 0.147 | 0.136 | 0.148 | 0.395 | 0.127 | 0.660 | 0.105 |
| Educational level | ||||||||
| University Degree | 0.180 | 0.146 | 0.190 | 0.145 | 0.416 | 0.125 | 0.590 | 0.106 |
| Other Education | 0.209 | 0.057 | 0.180 | 0.058 | 0.177 | 0.058 | 0.544 | 0.047 |
| Employment status | ||||||||
| Employed | 0.219 | 0.054 | 0.202 | 0.054 | 0.210 | 0.054 | 0.259 | 0.046 |
| Unemployed | -0.057 | 0.247 | -0.112 | 0.245 | 0.323 | 0.232 | 0.481 | 0.257 |
PCC=Polychoric Correlation