| 30-day mortality | |||
---|---|---|---|---|
 | univariate analysis | multivariate analysisb | ||
 | OR | 95% CI | AOR | 95% CI |
Underlying health conditions | Â | Â | Â | Â |
Age group (years old) | ||||
  ≤ 64 | (1.00) |  | (1.00) |  |
 65–74 | 2.46 | 1.27–4.74 | 1.61 | 0.80–3.26 |
 75–84 | 2.49 | 1.37–4.53 | 1.37 | 0.70–2.69 |
  ≥ 85 | 3.98 | 2.21–7.16 | 2.15 | 1.08–4.28 |
HCAP criteria | ||||
 Hospitalization ≥2 days within 90 days | 2.96 | 2.03–4.31 | 2.21 | 1.36–3.60 |
 Nursing home resident | 2.16 | 1.44–3.24 | 1.53 | 0.92–2.56 |
 Chronic dialysis within 30 days | 2.48 | 0.92–6.66 |  |  |
 Home care a | 7.00 | 2.69–18.23 | 5.84 | 2.28–14.99 |
 Male gender | 1.84 | 1.26–2.69 | 1.78 | 1.16–2.75 |
Comorbid illnesses | ||||
 Congestive heart failure | 1.53 | 0.97–2.40 |  |  |
 Liver disease | 1.75 | 0.93–3.29 | 1.77 | 0.87–3.61 |
 Renal disease | 1.54 | 0.92–2.61 |  |  |
 Neoplastic disease | 2.18 | 1.49–3.18 | 1.82 | 1.17–2.85 |
 Chronic lung disease | 1.28 | 0.86–1.90 |  |  |
 Diabetes mellitus | 1.22 | 0.80–1.86 |  |  |
 Dementia | 1.69 | 1.09–2.63 |  |  |
Risk factors for aspiration | ||||
 Witnessed aspiration | 1.72 | 1.16–2.55 |  |  |
 Chronic impaired conscious level | 2.71 | 1.28–4.98 | 1.75 | 0.81–3.76 |
 Chronic neurologic disorders | 0.80 | 0.37–1.76 |  |  |
 Foreign bodies interfering with swallowing | 1.28 | 0.29–5.56 | 0.43 | 0.10–1.87 |
 Bed-ridden state | 2.49 | 1.53–4.06 |  |  |
Body mass index | ||||
  < 18.5 | 2.63 | 1.72–4.04 | 1.99 | 1.25–3.16 |
 18.5–24.9 | (1.00) |  | (1.00) |  |
  ≥ 25 | 0.79 | 0.36–1.70 | 1.10 | 0.77–3.99 |
CURB score | ||||
 0 | (1.00) |  | (1.00) |  |
 1 | 2.38 | 1.30–4.33 | 1.87 | 1.01–3.46 |
 2 | 5.04 | 2.74–9.25 | 3.65 | 1.95–6.82 |
 3 | 7.45 | 3.71–14.99 | 4.90 | 2.22–10.81 |
 4 | 35.78 | 9.88–129.59 | 29.14 | 6.07–139.74 |