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Table 2 Characteristics of the study populations

From: International prevalence of adverse drug events in hospitals: an analysis of routine data from England, Germany, and the USA

  England Germany USA
Number of inpatients    
  Total (%) 6,202,313 (100.0) 16,230,407 (100.0) 7,125,028 (100.0)
  Male (%) 2,677,383 (43.2) 7,505,172 (46.2) 2,957,623 (41.5)
  Emergency (%) 3,361,405 (54.2) 5,702,142 (35.1) 3,252,330 (45.7)
  Operation (%) 2,836,784 (45.7) 6,563,549 (40.4) 3,890,723 (54.6)
  Died (%) 208,596 (3.4) 388,682 (2.4) 143,279 (2.0)
Age in years    
  Mean (std. dev.) 47.1 (28.27) 52.8 (25.58) 48.1 (27.90)
  Median (Q1-Q3) 49 (25–72) 59 (35–73) 52 (27–72)
Length of stay in days    
  Mean (std. dev.) 6.4 (12.34) 7.5 (8.79) 4.5 (6.08)
  Median (Q1-Q3) 3 (1–6) 5 (X-9) 3 (2–5)
  1. For reasons of confidentiality, this number was blinded by the German Federal Statistical Office.