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Table 4 Clinical data of radiologically confirmed and radiologically non-confirmed CAP cases

From: The impact of community-acquired pneumonia on the health-related quality-of-life in elderly

  Radiologically confirmed CAP cases Radiologically non-confirmed CAP cases p-value
Episodes/subjects 341 221  
Positive chest X-ray, in % 100 0 a
Number of clinical criteria, median (IQR) 4 (3–5) 4 (3–5) ns
PSI score, median (IQR) 93 (80–111) 90 (78–108) ns
Admitted to ICU, in % 9.7 5.2 ns
Readmitted within 30 days, in % 5.0 3.6 ns
LOS in days, median (IQR)
 At 1st admission, 8 (6–12) 7 (5–11) 0.006
 Including readmission 8 (6–11) 7 (5–10) 0.011
  1. Abbreviations: IQR interquartile range, ns not significant
  2. aAccording to definition radiologically confirmed CAP cases had to have a positive X-rays