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Sensitivity and specificity of the IPAQ with the optimum cut off point at 0.67 (N = 226)
| Actometer typology | ||||
| Passive | Active | |||
| IPAQ | Passive (N/%) | 46/(70.1%) | 60/(37.3%) | 106 (47%) |
| Active (N/%) | 19/(29.3%) | 101/(62.7%) | 120 (53%) | |
| 65/(100%) | 161/(100%) | 226 (100%) | ||
Predictive value of a positive test (sensitivity) PV+ = 46/65 = 0.701
Predictive value of a negative test (specificity) PV- = 101/161 = 0.627
