Table 3.
Fixed-effects Poisson regression models comparing rates of admission/hospital days and stratified Cox regression models assessing risk of first hospitalization in DLB compared with AD
| Outcome |
Within the first year after dementia diagnosis |
Any time |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| All hospital admissions |
Planned admissions |
Unplanned admissions |
Days in hospital |
First hospitalization |
||||||
| Model | IRR (95% CI) | P value | IRR (95% CI) | P value | IRR (95% CI) | P value | IRR (95% CI) | P value | HR (95% CI) | P value |
| Unadjusted | 1.50 (1.28–1.75) | <.001 | 1.43 (1.02–2.00) | .035 | 1.51 (1.27–1.81) | .001 | 1.57 (1.48–1.66) | <.001 | 1.76 (1.43–2.17) | <.001 |
| Adjusted for HoNOS65+ physical illness score and hospitalization in year before dementia diagnosis | 1.12 (0.94–1.33) | .218 | 1.18 (0.82–1.68) | .373 | 1.13 (0.93–1.38) | .224 | 1.03 (0.97–1.10) | .304 | 1.46 (1.17–1.83) | .001 |
| Adjusted for adjusted for the above and ethnicity, marital status, deprivation score, and HoNOS65+ mental health and functional problem scores | 1.07 (0.85–1.35) | .549 | 1.10 (0.70–1.72) | .676 | 1.06 (0.80–1.39) | .687 | 0.88 (0.81–0.96) | .006 | 1.46 (1.10–1.94) | .009 |
NOTE. Bold text indicates P < .05
Abbreviations: DLB, dementia with Lewy bodies; AD, Alzheimer's disease; CI, confidence interval; HoNOS65+, Health of the Nation Outcome Scales; IRR, incident rate ratio; HR, hazard ratio.