Table.3 Results of logistic regression analysis for in-hospital mortality
Crude mortality (%) | Adjusted odds ratio | 95% confidence interval | P | |||
|---|---|---|---|---|---|---|
Sex | ||||||
Female | 4.3 | 0.88 | 0.83 | – | 0.93 | < 0.001 |
Male | 5.0 | 1.00 | Ref. | |||
Age (years) | ||||||
≥ 90 | 9.8 | 16.51 | 10.85 | – | 25.14 | < 0.001 |
80–89 | 6.2 | 10.20 | 6.72 | – | 15.50 | < 0.001 |
70–79 | 3.5 | 6.32 | 4.16 | – | 9.59 | < 0.001 |
60–69 | 2.2 | 4.47 | 2.93 | – | 6.82 | < 0.001 |
50–59 | 1.3 | 3.77 | 2.44 | – | 5.83 | < 0.001 |
40–49 | 0.6 | 2.47 | 1.50 | – | 4.06 | < 0.001 |
≤ 39 | 0.2 | 1.00 | Ref. | |||
Hospital bed capacity | ||||||
≥ 700 | 3.6 | 0.78 | 0.65 | – | 0.94 | 0.008 |
600–699 | 4.3 | 0.79 | 0.66 | – | 0.94 | 0.008 |
500–599 | 4.3 | 0.79 | 0.68 | – | 0.92 | 0.002 |
400–499 | 4.4 | 0.82 | 0.71 | – | 0.95 | 0.010 |
300–399 | 4.6 | 0.90 | 0.79 | – | 1.03 | 0.123 |
200–299 | 5.2 | 1.01 | 0.87 | – | 1.16 | 0.947 |
≤ 199 | 5.1 | 1.00 | Ref. | |||
Type of hospital | ||||||
Academic | 3.0 | 0.73 | 0.64 | – | 0.84 | < 0.001 |
Community | 4.7 | 1.00 | Ref. | |||
Season of admission | ||||||
Winter | 5.3 | 1.11 | 1.04 | – | 1.20 | 0.004 |
Autumn | 4.4 | 0.99 | 0.92 | – | 1.06 | 0.705 |
Summer | 4.0 | 0.89 | 0.83 | – | 0.96 | 0.002 |
Spring | 4.6 | 1.00 | Ref. | |||
Charlson Comorbidity Index | ||||||
≥ 4 | 12.6 | 1.83 | 1.62 | – | 2.06 | < 0.001 |
3 | 7.6 | 0.89 | 0.78 | – | 1.02 | 0.096 |
2 | 6.2 | 1.06 | 0.98 | – | 1.16 | 0.161 |
1 | 3.9 | 0.94 | 0.85 | – | 1.03 | 0.184 |
0 | 3.2 | 1.00 | Ref. | |||
Body mass index (kg/m2) | ||||||
≥ 30.0 | 1.7 | 0.75 | 0.63 | – | 0.88 | 0.001 |
25.0–29.9 | 2.1 | 0.71 | 0.65 | – | 0.78 | < 0.001 |
23.0–24.9 | 2.5 | 0.74 | 0.68 | – | 0.81 | < 0.001 |
18.5–22.9 | 3.7 | 1.00 | Ref. | |||
< 18.5 | 7.5 | 1.67 | 1.58 | – | 1.78 | < 0.001 |
Japan Coma Scale grade on admission | ||||||
Grade 3 (coma) | 26.3 | 4.51 | 4.00 | – | 5.09 | < 0.001 |
Grade 2 (somnolent) | 13.4 | 2.35 | 2.13 | – | 2.59 | < 0.001 |
Grade 1 (drowsy) | 6.8 | 1.46 | 1.35 | – | 1.57 | < 0.001 |
Grade 0 (alert) | 2.9 | 1.00 | Ref. | |||
Ambulance use | ||||||
Yes | 6.8 | 1.12 | 1.05 | – | 1.18 | < 0.001 |
No | 3.5 | 1.00 | Ref. | |||
Disseminated intravascular coagulation | ||||||
Yes | 20.4 | 2.92 | 2.66 | – | 3.20 | < 0.001 |
No | 3.9 | 1.00 | Ref. | |||
Sepsis | ||||||
Yes | 11.3 | 2.35 | 2.19 | – | 2.53 | < 0.001 |
No | 3.1 | 1.00 | Ref. | |||
Renal failure | ||||||
Yes | 10.6 | 2.29 | 2.12 | – | 2.47 | < 0.001 |
No | 4.0 | 1.00 | Ref. | |||
Heart failure | ||||||
Yes | 11.3 | 1.88 | 1.71 | – | 2.06 | < 0.001 |
No | 3.9 | 1.00 | Ref. | |||
Cerebrovascular disease | ||||||
Yes | 6.5 | 1.20 | 1.11 | – | 1.29 | < 0.001 |
No | 4.3 | 1.00 | Ref. | |||
Pneumonia | ||||||
Yes | 16.4 | 3.35 | 3.13 | – | 3.60 | < 0.001 |
No | 3.5 | 1.00 | Ref. | |||
Malignancies | ||||||
Yes | 8.8 | 3.17 | 2.89 | – | 3.48 | < 0.001 |
No | 3.9 | 1.00 | Ref. | |||
Use of anti-diabetic drugs | ||||||
Yes | 6.7 | 1.47 | 1.38 | – | 1.56 | < 0.001 |
No | 4.1 | 1.00 | Ref. | |||
Use of corticosteroid or immunosuppressive drugs | ||||||
Yes | 11.6 | 2.73 | 2.56 | – | 2.92 | < 0.001 |
No | 3.8 | 1.00 | Ref. | |||