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Table 3 Species distribution among Enterobacterales collected from patients with RTI in ICU (n = 1005) and non-ICU wards (n = 726) – SMART 2018–2019, United Statesa

From: Activity of ceftolozane/tazobactam against Gram-negative isolates from patients with lower respiratory tract infections – SMART United States 2018–2019

Species of Enterobacterales ICU, n (% of ICU isolates of Enterobacterales) Non-ICU, n (% of non-ICU isolates of Enterobacterales)
K. pneumoniae 234 (23.3) 156 (21.5)
E. coli 187 (18.6) 129 (17.8)
S. marcescens 130 (12.9) 102 (14.0)
E. cloacae 86 (8.6) 66 (9.1)
K. aerogenes 84 (8.4) 52 (7.2)
K. oxytoca 71 (7.1) 53 (7.3)
P. mirabilis 60 (6.0) 48 (6.6)
Other species 153 (15.2) 120 (16.5)
  1. a Of the 1938 isolates of Enterobacterales, 57 were from emergency rooms and 150 did not have a location provided and were excluded from this table