Table 2.
Univariate Analyisisa(n=123) | All Covariates (n=120) | Final Model b (n=120) | |||||||
---|---|---|---|---|---|---|---|---|---|
HR | 95% CI | p value | HR | 95% CI | p value | HR | 95% CI | p value | |
Site 2c | .62 | .41–.96 | .03 | .63 | .27–1.45 | .28 | |||
Site 3c | .49 | .26–.92 | .03 | .39 | .12–1.29 | .12 | |||
Female gender | .72 | .47–1.09 | .12 | .96 | .43–2.15 | .92 | .69 | .41–1.15 | .15 |
Age d | 1.02 | .98–1.05 | .32 | 1.04 | .99–1.10 | .14 | 1.03 | .98–1.08 | .25 |
Years at nursing homee | .97 | .90–1.04 | .37 | 1.02 | .90–1.15 | .80 | |||
Mixed or other dementia | .69 | .45–1.06 | .09 | .57 | .30–1.09 | .09 | .59 | .35–1.00 | .05 |
Psychosis | 1.12 | .71–1.76 | .62 | 1.03 | .50–2.11 | .94 | |||
Pulmonary disorders | 1.43 | .80–2.57 | .23 | .96 | .42–2.18 | .92 | |||
Diabetes Mellitus | 1.32 | .65–2.67 | .44 | 1.74 | .79–3.80 | .17 | |||
Pneumonia | 2.10 | 1.21–3.65 | <.01 | 2.06 | .93–4.56 | .08 | 2.23 | 1.19–4.20 | .01 |
Heart Disease | 1.23 | .81–1.87 | .34 | 1.27 | .69–2.33 | .45 | |||
SIRSf score 6–13 g (n=121) | 1.26 | .74–2.15 | .39 | 1.40 | .63–3.13 | .41 | 1.43 | .76–2.69 | .27 |
SIRS score 14+ g (n=121) | .83 | .47–1.46 | .52 | .72 | .29–1.81 | .48 | .80 | .38–1.66 | .55 |
7 + years with symptoms h (n=122) | .80 | .52–1.23 | .30 | .68 | .36–1.30 | .24 | .76 | .46–1.27 | .30 |
Missing data—SIRS scores (n=2), years since dementia symptoms began (n=1)
Final model includes gender, age, site, SIRS, dementia type, pneumonia, diabetes mellitus, and years with dementia symptoms
Reference category: Site 1
With every one year increase from mean age (81.5 years)
With every one year increase from mean years in nursing home (1.9 years)
Severe Impairment Rating Scale
Reference category: SIRS score 0–5
Reference category: 0–6 years with symptoms