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Table 3 One-year outcomes* associated with frailty measures, Risk Ratios (95% Confidence Intervals)

From: Comparing frailty measures in their ability to predict adverse outcome among older residents of assisted living

Frailty model

Death

Hospitalization

Move to Long-Term care

 

(170 events)1

(424 events)1

(204 events)1

Armstrong Index

Unadjusted

Prefrail

1.23 (0.63-2.44)

0.93 (0.69-1.24)

2.25 (1.00-5.08)

N = 1,066

 

Frail

2.27 (1.09-4.32)

1.23 (0.94-1.63)

4.21 (1.91-9.25)

 

Adjusted2

Prefrail

1.17 (0.59-2.29)

0.91 (0.68-1.22)

2.21 (0.98-4.99)

  

Frail

1.94 (1.02-3.70)

1.16 (0.87-1.53)

4.14 (1.87-9.14)

Full Frailty Index

Unadjusted

Prefrail

2.22 (1.47-3.34)

1.44 (1.19-1.74)

1.85 (1.26-2.72)

N = 1,066

 

Frail

2.69 (1.78-4.07)

1.33 (1.09-1.63)

3.30 (2.30-4.75)

 

Adjusted2

Prefrail

2.00 (1.33-3.00)

1.37 (1.13-1.66)

1.87 (1.27-2.75)

  

Frail

2.35 (1.56-3.54)

1.28 (1.04-1.57)

3.30 (2.29-4.76)

CHS Criteria 1

Unadjusted

Prefrail

1.04 (0.59-1.81)

1.10 (0.84-1.43)

1.54 (0.95-2.51)

N = 927

 

Frail

2.25 (1.40-3.61)

1.60 (1.27-2.02)

2.21 (1.41-3.46)

 

Adjusted2

Prefrail

0.88 (0.51-1.54)

1.06 (0.82-1.38)

1.49 (0.91-2.43)

  

Frail

1.74 (1.07-2.81)

1.45 (1.15-1.83)

2.17 (1.38-3.41)

CHESS Scale

Unadjusted

Intermediate

1.48 (1.04-2.09)

1.31 (1.10-1.56)

1.33 (0.98-1.81)

N = 1,066

 

High

2.13 (1.53-2.96)

1.32 (1.10-1.58)

1.84 (1.38-2.47)

 

Adjusted2

Intermediate

1.38 (0.98-1.94)

1.27 (1.07-1.51)

1.33 (0.98-1.82)

  

High

1.87 (1.35-2.59)

1.25 (1.05-1.50)

1.87 (1.39-2.50)

  1. *Robust (not frail or low risk for decline) used as reference category.
  2. 1For CHS analysis the number of events for death, hospitalization, and move to long-term care were 142, 375, and 172 respectively.
  3. 2Adjusted for age, sex, and co-morbidity (Charlson co-morbidity index score).