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Table 2 Clinical and prognostic characteristics of patients with bloodstream infections (BSI) caused by gram-negative bacteria in tertiary referral hospital in Salvador, Brazil (n = 143)

From: Bloodstream infections caused by multidrug-resistant gram-negative bacteria: epidemiological, clinical and microbiological features

Characteristics MDR
n (%)
n = 41 (28.7)
Non-MDR
n (%)
n = 102 (71.3)
p-value OR (95% CI)
Potential risk factors
 Catheter use (n = 58) 15 (51.7) 43 (71.7) 0.06 0.42 (0.16–1.06)
 Ventilator (n = 21) 5 (17.2) 16 (26.7) 0.32 0.57 (0.18–1.75)
Severity of illness
 Pitt score, median (1 qt–3 qt)  5 (1–10) 2 (0–6) 0.07a
 0  8 (21.6) 33 (31.1) 0.27 0.61 (0.25–1.48)
 1  6 (40.0) 35 (27.3) 0.31 1.77 (0.59–5.34)
 2–3  4 (14.3) 37 (32.2) 0.06 0.35 (0.11–1.09)
 ≥4  23 (36.5) 18 (22.5) 0.06 1.9 (0.95–4.12)
 Severe sepsis or septic shockb (n = 76)  27 (65.9) 49 (48.0) 0.06 2.09 (0.99–4.43)
 Crude mortality  23 (56.1) 27 (26.5) <0.001 3.5 (1.65–7.62)
  1. (a) Mann-Whitney U Test; (b) Sepsis complicated by organ dysfunction is termed severe sepsis, which could progress to septic shock, which is defined as “sepsis-induced hypotension persisting despite adequate fluid resuscitation”