Table 1

Multivariate analysis of factors associated with length of stay among 8817 patients with dementia treated at 196 acute hospitals

Predictor variableInteractions*Estimated effect (95% CI)P value
Patient age−0.003 (−0.005 to 2.19)0.052
Patient ethnicity—white
Black, Asian and minority ethnic−0.066 (−0.13 to −0.002)0.043
Ward type—care of the elderly
Cardiac−0.33 (−0.47 to −0.19)<0.001
General medical−0.28 (−0.33 to −0.22)<0.001
Orthopaedics−0.16 (−0.26 to −0.05)0.003
Surgical−0.32 (−0.41 to −0.23)<0.001
 Other medical−0.26 (−0.33 to −0.18)<0.001
Other−0.56 (−0.74 to −0.37)<0.001
Primary diagnosis—respiratory
Fall0.24 (0.17 to 0.32)<0.001
Orthopaedic0.39 (0.27 to 0.50)<0.001
Delirium/confusion0.25 (0.18 to 0.33)<0.001
Other0.13 (0.05 to 0.20)0.001
Discharge planning within 24 hours of admission
Yes versus no
−0.24 (−0.29 to −0.18)<0.001
Executive board reviews delayed discharge
Yes versus no
‘−0.08 (−0.17 to 0.006)0.069**
Evidence of discussing discharge with carers
Yes versus no
0.26 (0.21 to 0.32)<0.001
Evidence of discussing discharge with consultantIn hospitals with old age liaison psychiatrist
Yes versus no
Yes−0.039 (−0.12 to 0.05)0.367
No−0.15 (−0.03 to −0.26)0.012
  • *When an interaction effect is present, the estimated effects of risk factors are interpreted taking into effect the interaction column.