Group | Portability | Threshold based | Classification | Feedback logic | Efficiency PR-Precision RC-Recall SP-Specificity AC-Accuracy |
PerFallD [2] | Yes, Addition hard ware on waist | Yes (posture) | No classification of falls | No | 97% (PR) |
u Care [14] | Yes | Yes | No | No | 95.7% (PR) 90% (AC) |
e Home [15] | No Located on floor | Yes | No | No | 97.7% (SP) 87% (RC) |
Sorvala [16] | Yes Waist and ankle | YES Threshold + centre of gravity | No | No | 99.6% (SP) 95.6% (RC) |
SAFE [17] | 2 sensors on waist and thigh | Threshold | No | No | 81% (PR) 92% (RC) |
Designed system | 1 | Threshold + orientation of person | Yes | Yes | 95% (PR) 90% (AC) 100% (RC) |