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Table 1 Characteristics of pleural empyema patients with and without lung abscess

From: Lung abscess predicts the surgical outcome in patients with pleural empyema

  Lung abscess
(N = 22)
Non- lung abscess
(N = 237)
P-value
Age (year) 51.9 ± 25.0 57.8 ± 18.4 P = 0.298
Gender
   Male 18 184 P = 0.792
   Female 4 53  
Diabetes mellitus 5 71 P = 0.476
Cerebrovascular accident 4 26 P = 0.299
Hypertension 5 76 P = 0.366
Tuberculosis 1 25 P = 0.371
Chronic obstructive pulmonary disease 1 11 P = 1.000
Peptic ulcer 2 17 P = 0.669
Asthma 1 3 P = 0.300
Lung cancer 0 9 P = 1.000
Other malignancy 2 16 P = 0.656
Leukocytosis (WBC > 10000/mm3) 21 150 P = 0.002*
Heart rate (/min) 96.3 ± 18.8 94.5 ± 16.5 P = 0.418
Mean arterial pressure (mmHg) 93.1 ± 10.8 96.9 ± 14.0 P = 0.211
Body temperature (°C) 37.0 ± 0.8 37.1 ± 2.1 P = 0.947
Respiratory rate (/min) 23.0 ± 6.5 21.6 ± 5.2 P = 0.233
  1. 1. Values are medians ± standard error for continuous variables or # cases for categorical variables.
  2. 2. P-values from Mann-Whitney U test (continuous variables) or Fisher exact test (categorical variables).