Without Interaction Terms
Total Hospital Cost LOS
Changes in % (95% CI) Changes in % (95% CI)
Delirium ↑31.5% a (↑25.41~↑37.92) ↑70.3% a (↑60.20~↑80.99)
Dementia ↑0.1% (↓0.04~↑4.28) ↑2.1% (↓4.90~↑9.60)
Frailty ↑7.4% a (↑3.44~↑11.53) ↑22.6% a (↑15.15~↑30.55)
With Interaction Terms
Change Total Hospital Cost LOS
Changes in % (95% CI) Changes in % (95% CI)
From delirium in the absence of both dementia and frailty ↑32.9%a (↑25.72~↑40.43) ↑74.5% a (↑62.71~↑87.13)
From delirium in the presence of dementia but absence of frailty ↑10.1% (↓1.96~↑23.67) ↑37.1% a (↑13.70∼↑65.20)
From delirium in the absence of dementia but presence of frailty ↑45.1% a (↑26.45∼↑66.45) ↑66.1% a (↑39.50~↑97.85)
From delirium in the presence of both dementia and frailty ↓1.13% (↓15.84~↑16.15) ↑36.2% a (↑1.78~↑82.30)
From dementia in the absence of both delirium and frailty ↑0.7% (↓4.10~↑5.81) ↓0.3% (↓8.02~↑8.10)
From dementia in the presence of delirium but absence of frailty ↓16.53% a (↓25.89~↓5.97) ↓21.7% a (↓34.73~↓6.03)
From dementia in the absence of delirium but presence of frailty ↑2.5% (↓8.72~↑15.04) ↓0.2% (↓21.22~↑26.36)
From dementia in the presence of both delirium and frailty ↓30.17% a (↓41.51~↓16.61) ↓18.2% (↓35.94~↑4.46)
From frailty in the absence of both dementia and delirium ↑4.9% a (↑0.92∼↑9.01) ↑20.2% a (↑12.08∼↑28.84)
From frailty in the presence of dementia but absence of delirium ↑6.7% (↓5.30~↑20.22) ↑20.3% (↓5.42~↑52.88)
From frailty in the presence of both dementia and delirium ↓4.2% (↓18.3~↑12.31) ↑19.5% (↓6.95~↑53.51)
From frailty in the absence of dementia but presence of delirium ↑14.5% (↓0.70~↑32.06) ↑14.4% (↓3.83~↑36.12)