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Table 3 Receiver-operating characteristics (ROC) analysis. Cut-off values, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and odds ratios (ORs) with 95 % confidence intervals (95 % CI) for Instrumental Activities of Daily Living (IADL) and Mini Mental State Examination (MMSE) for predicting institutionalized living arrangement at 1 year after fragility hip fracture

From: Does cognitive/physical screening in an outpatient setting predict institutionalization after hip fracture?

Cut-offs Sensitivity Specificity PPV NPV OR (95 % CI)
IADL
 2 92.9 % 69.5 % 0.388 0.979 29.6 (12.6–69.7)
 3 98.8 % 57.3 % 0.325 0.996 111.5 (15.4–808.7)
 4 98.8 % 49.1 % 0.288 0.995 80.2 (11.1–581.5)
 5 100 % 38.0 % 0.251 1.000 Undefined
MMSE
 10 22.8 % 96.3 % 0.293 0.865 7.7 (3.7–16.1)
 15 55.7 % 86.5 % 0.444 0.909 8.0 (4.7–13.6)
 20 83.5 % 65.0 % 0.317 0.953 9.4 (5.0–17.7)
 25 96.2 % 29.3 % 0.209 0.975 10.5 (3.3–34.0)