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)