Table 1 Characteristics of geriatric patients with influenza in the emergency department
Characteristics | Total patients (n = 409) | Mortality (n = 20) | Survival (n = 389) | p Value |
|---|---|---|---|---|
Male sex | 205 (50.1) | 13 (65.0) | 192 (49.3) | 0.17 |
Age, years | 79. 5 ± 8.3 | 81.2 ± 8.5 | 79.5 ± 6.4 | 0.36 |
Age subgroup | ||||
Young elderly (65–74 yr) | 125 (30.6) | 4 (20.0) | 121 (31.1) | 0.31 |
Moderately elderly (75–84 yr) | 174 (42.5) | 10 (50.0) | 164 (42.1) | 0.51 |
Old elderly (≥85 yr) | 110 (26.9) | 6 (30.0) | 104 (26.8) | 0.76 |
Vital signs | ||||
Respiratory rate (per minute) | 21.3 ± 4.2 | 23.4 ± 7.5 | 21.1 ± 3.9 | 0.02 |
Glasgow’s coma scale | 13.9 ± 2.3 | 12.0 ± 4.0 | 14.1 ± 2.2 | 0.03 |
SBP (mmHg) | 146.1 ± 30.5 | 135.1 ± 31.2 | 146.7 ± 30.5 | 0.28 |
Body temperature (°Celsius) | 38.18 ± 0.93 | 38.19 ± 0.92 | 38.17 ± 0.93 | 0.38 |
Heart rate (beats/min) | 98.8 ± 20.5 | 103.0 ± 21.6 | 98.6 ± 20.5 | 0.55 |
Past history | ||||
Cancer | 61 (14.9) | 7 (35) | 54 (13.9) | 0.02 |
COPD | 111 (27.1) | 0 (0) | 111 (28.5) | 0.03 |
Hypertension | 263 (64.3) | 17 (85.0) | 246 (63.2) | 0.06 |
Coronary artery disease | 103 (25.1) | 10 (50.0) | 93 (23.9) | 0.09 |
Stroke | 65 (15.9) | 4 (20) | 61 (15.7) | 0.63 |
Diabetes | 163 (39.8) | 7 (35.0) | 156 (40.1) | 0.66 |
Laboratory data | ||||
WBC (cells/mm3) | 10,590.0 ± 5820.0 | 14530.0 ± 6.2 | 10380.0 ± 5.8 | < 0.01 |
Bandemia (band form > 10%) | 43 (10.2) | 7 (35) | 36 (9.2) | < 0.01 |
CRP (mg/dL) | 8.2 ± 10.1 | 11.7 ± 9.2 | 8.03 ± 10.2 | 0.09 |
Platelet (103/mm3) | 186.2 ± 158.8 | 198.9 ± 140.3 | 185.6 ± 159.9 | 0.68 |
SIRS | 1.91 ± 1.1 | 2.5 ± 1.1 | 1.9 ± 1.1 | 0.03 |
SIRS ≥2 | 258 (63.1) | 16 (80.0) | 242 (62.2) | 0.11 |
SIRS ≥3 | 126 (30.8) | 12 (60.0) | 114 (29.3) | < 0.01 |
Influenza subtypes | ||||
Influenza A | 278 (68.0) | 12 (60) | 266 (68.3) | 0.45 |
Influenza B | 120 (29.3) | 5 (25) | 115 (29.5) | 0.67 |
Influenza A + B | 11 (2.7) | 3 (15) | 8 (2.1) | < 0.01 |
Influenza vaccination | 8 (1.9) | 1 (5) | 7 (1.8) | 0.55 |
DNR | 4 (0.98) | 2 (10) | 2 (0.5) | 0.08 |
Admission rate† | 343 (83.9) | 20 (100) | 323 (83.0) | 0.05 |