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Table 3 Predictive capacity of the FI-PAC for hospital outcomes in different Frailty Index (FI) cut-off points

From: Frailty Index and functional level upon admission predict hospital outcomes: an interRAI-based cohort study of older patients in post-acute care hospitals

Outcome

FI cut-off point

Sensitivity

Specificity

PPVa

NPVb

n

(%)

n

(%)

n

(%)

n

(%)

Prolonged hospital stay (≥90 days)

≥0.40

227/409

(56)

975/1282

(76)

227/534

[43]

975/1157

(84)

≥0.32

332/409

(81)

778/1282

(61)

332/836

[40]

778/855

(91)

Emergency department admission

≥0.40

79/204

[41]

1157/1691

(68)

79/613

[13]

1157/1282

(90)

≥0.30

148/204

(73)

745/1691

[44]

148/1094

[14]

745/801

(93)

In-hospital mortality

≥0.40

156/231

(68)

1316/1957

(67)

156/797

[20]

1316/1391

(95)

≥0.35

188/231

(81)

1057/1957

(54)

188/1088

[17]

1057/1100

(96)

  1. a Positive predictive value
  2. b Negative predictive value