Table 1 Patient characteristics (n = 651)
Patient characteristics | Total | |
|---|---|---|
n | (%) | |
Gender, female | 303 | (46.5) |
Age, years, median (IQR) | 77 | (64-84) |
Nursing home residents | 70 | (10.8) |
Penicillin allergya | 70 | (10.8) |
Comorbidities | ||
COPD | 205 | (31.5) |
Heart failure | 140 | (21.5) |
Diabetes mellitus I or II | 85 | (13.1) |
CRB-65 scoreb | ||
0 | 110 | (16.9) |
1 | 225 | (34.9) |
2 | 179 | (27.5) |
3 | 43 | (6.6) |
4 | 6 | (0.9) |
Missing data | 88 | (13.5) |
Registered in admission notes | 1 | (0.2) |
Antibiotic use pre-hospitalization | 171 | (26.3) |
Empirical antibiotic prescribing | ||
Penicillin G/V monotherapy | 335 | (51.5) |
Penicillin G + gentamicin | 149 | (22.9) |
Other antibiotics | 167 | (25.7) |
Treatment duration | ||
IV treatment duration, median (IQR) | 3 | (2-5) |
Total treatment duration, median (IQR) | 11 | (9.8-13) |
Microbiological diagnostics | ||
Blood culture | 499 | (76.7) |
Nasopharynx | 179 | (27.5) |
Expectorate | 100 | (15.4) |
Pneumococcal urinary antigen test | 327 | (50.2) |
Legionella urinary antigen test | 51 | (7.8) |
Serology M. or C.pnuemoniae | 19 | (2.9) |
Other | 220 | (33.8) |
None | 68 | (10.4) |
Aetiology | ||
S.pneumoniae | 61 | (9.4) |
M. or C. pneumoniae | 22 | (3.4) |
H.influenzae | 11 | (1.7) |
S.aureus | 7 | (1.1) |
Other bacteria | 14 | (2.2) |
Influenza virus A or B | 12 | (1.8) |
Other respiratory viruses | 18 | (2.8) |
None identified | 514 | (79.0) |
Clinical outcomes | ||
30-day readmission | 90 | (14.4) |
Length of stay in hospital, median | 4 | (3-6) |
30-day mortality | 44 | (6.9) |