Table 5 Clinical characteristics of non-Legionella pneumophila serogroup 1 and Legionella pneumophila serogroup 1 patients
non-L. pneumophila serogroup 1 (n = 11) | L. pneumophila serogroup 1 (n = 23) | P value | |
|---|---|---|---|
Age (y) | 66.0 (59.5–72.5) | 70.0 (58.5–74.5) | 0.96 |
Male | 8 (72.7) | 21 (91.3) | 0.30 |
Smoking history | |||
Current + Past | 5 (62.5) | 17 (73.9) | 0.66 |
Comorbidity | |||
Chronic heart disease | 0 (0) | 7 (30.4) | 0.07 |
COPD | 1 (9.1) | 0 (0) | 0.32 |
Diabetes mellitus | 2 (18.2) | 7 (30.4) | 0.68 |
Cerebrovascular disease | 0 (0) | 5 (21.7) | 0.15 |
Malignant disease | 2 (18.2) | 2 (8.7) | 0.58 |
Chronic kidney disease | 0 (0) | 3 (13.0) | 0.54 |
Chronic liver disease | 2 (18.2) | 0 (0) | 0.1 |
Vital signs | |||
Body temperature (°C) | 37.7 (36.9–38.6) | 38.8 (37.8–39.5) | 0.06 |
Systolic blood pressure (mmHg) | 121 (121–130) | 136 (122–157) | 0.11 |
Heart rate (beats/min) | 95 (86–117) | 100 (87–104) | 0.82 |
Laboratory examinations | |||
Alb (g/dL) | 2.7 (2.5–3.6) | 3.0 (2.3–3.3) | 0.66 |
LDH (U/L) | 256 (201–401) | 395 (276–540) | 0.12 |
BUN (mg/dL) | 15 (13–23) | 24 (16–41) | 0.14 |
Cr (mg/dL) | 0.82 (0.75–1.23) | 1.06 (0.83–1.74) | 0.12 |
Na (mmol/L) | 137 (132–140) | 134 (130–137) | 0.14 |
Ht (%) | 39.7 (33.2–42.1) | 38.9 (35.2–41.8) | 0.90 |
Plt (×104/μL) | 20.2 (16.1–24.4) | 16.4 (14.2–19.8) | 0.16 |
WBC (×103/μL) | 8.3 (7.1–9.9) | 10.4 (8.5–11.9) | 0.11 |
CRP (mg/L) | 195 (65–274) | 230 (184–281) | 0.31 |
CURB-65 (score) | 0.48 | ||
0 | 2 (18.2) | 2 (8.7) | |
1 | 4 (36.4) | 7 (30.4) | |
2 | 4 (36.4) | 8 (34.8) | |
3 | 0 (0) | 5 (21.7) | |
4 | 1 (9.1) | 1 (4.3) | |
5 | 0 (0) | 0 (0) | |
PSI (score) | 99 (79–116) | 97 (84–121) | 0.73 |
PSI (class) | 0.84 | ||
I | 0 (0) | 1 (4.3) | |
I | 2 (18.2) | 2 (8.7) | |
III | 3 (27.3) | 6 (26.1) | |
IV | 5 (45.5) | 9 (39.1) | |
V | 1 (9.1) | 5 (21.7) | |
ICU admission | 4 (36.4) | 6 (26.1) | 0.69 |
In-hospital mortality | 3 (27.3) | 0 (0) | 0.03 |