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Table 1 Clinical and epidemiological characteristics of the population with CAP

From: Comparison of serological methods with PCR-based methods for the diagnosis of community-acquired pneumonia caused by atypical bacteria

Variables Group 1 (n = 68) Group 2 (n = 88) Group 3 (n = 49)
Age in years, Median (Q1-Q3) 65 (41–76) 63 (40–76) 3 (1–7)
Males, n (%) 28 (41.2) 49 (55.7) 29 (59.2)
Received antibiotics in last 3 months, n (%) 19 (27.9) 10 (11.4) 9 (18.4)
Symptom duration, in days, Median (Q1-Q3) 7 (4–15) 6 (3–10) 4 (2–8)
Presence of comorbidities, n (%) 37 (54.4) 50 (56.8) 2 (4.1)
Chronic obstructive pulmonary disease 24 (35.3) 37 (42) 0
History of convulsions in the last month 0 3 (3.4) 2 (4.1)
Severe pneumoniaa, n (%) 15 (22.1) 26 (29.5) 1 (2.0)
Frequency of atypical bacteria, n (%)
M. pneumoniae 5 (10.9) 4 (5.2) 21 (43.8)
C. pneumoniae 3 (6.5) 9 (11.7) 6 (12.5)
L. pneumophila 3 (6.5) 2 (2.6) 5 (10.4)
Length of hospital stay, in days, Median (Q1-Q3) 6 (3–9) 7 (4–10) 4 (2–9)
In-hospital death, n (%) 0 8 (9.1) 0
  1. aIn children (group 3), this corresponds to the WHO classification of very severe pneumonia