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Table 1 Patient characteristics (n = 651)

From: Empirical prescribing of penicillin G/V reduces risk of readmission of hospitalized patients with community-acquired pneumonia in Norway: a retrospective observational study

Patient characteristicsTotal
n(%)
Gender, female303(46.5)
Age, years, median (IQR)77(64-84)
Nursing home residents70(10.8)
Penicillin allergya70(10.8)
Comorbidities
 COPD205(31.5)
 Heart failure140(21.5)
 Diabetes mellitus I or II85(13.1)
CRB-65 scoreb
 0110(16.9)
 1225(34.9)
 2179(27.5)
 343(6.6)
 46(0.9)
 Missing data88(13.5)
 Registered in admission notes1(0.2)
Antibiotic use pre-hospitalization171(26.3)
Empirical antibiotic prescribing
 Penicillin G/V monotherapy335(51.5)
 Penicillin G + gentamicin149(22.9)
 Other antibiotics167(25.7)
Treatment duration
 IV treatment duration, median (IQR)3(2-5)
 Total treatment duration, median (IQR)11(9.8-13)
Microbiological diagnostics
 Blood culture499(76.7)
 Nasopharynx179(27.5)
 Expectorate100(15.4)
 Pneumococcal urinary antigen test327(50.2)
 Legionella urinary antigen test51(7.8)
 Serology M. or C.pnuemoniae19(2.9)
 Other220(33.8)
 None68(10.4)
Aetiology
S.pneumoniae61(9.4)
M. or C. pneumoniae22(3.4)
H.influenzae11(1.7)
S.aureus7(1.1)
 Other bacteria14(2.2)
 Influenza virus A or B12(1.8)
 Other respiratory viruses18(2.8)
 None identified514(79.0)
Clinical outcomes
 30-day readmission90(14.4)
 Length of stay in hospital, median4(3-6)
 30-day mortality44(6.9)
  1. CRB-65 Confusion, respiration, blood pressure and age ≥ 65y, COPD Chronic obstructive pulmonary disease, IQR inter quartile range, IV intravenous
  2. aDocumented penicillin allergy in patient notes to beta-lactams
  3. bScoring made retrospectively based on admission data/journal data