Skip to main content

Table 2 Bivariate analysis of prognostic factors of patients with bacteremia acquired in intensive care units

From: Acinetobacter spp. are associated with a higher mortality in intensive care patients with bacteremia: a survival analysis

Variables Median survival time (days) 95 % CI HR 95 % CI Death/total (%) P
Age > 60 years
 Yes 5 0.00–10.82 1.67 1.08–2.58 37/53 (70) 0.02
 No 20 11.07–28.93 1   47/88 (53)
Sex
 Male 9 4.32–13.69 1.49 0.95–2.35 56/87 (64) 0.08
 Female 25 9.67–40.34 1   28/54 (52)
APACHE II Score > 20
 Yes 10 3.48–16.52 1.11 0.72–1.70 39/60 (65) 0.64
 No 15 5.10–24.9 1   45/81 (56)
CHARLSON Score > 3
 Yes 15 1.78–28.22 1.18 0.76–1.84 31/48 (65) 0.46
 No 11 5.32–16.68 1   53/93 (57)
Co-morbid condition
 Diabetes mellitus
  Yes 7 a 1.67 1.03–2.70 23/31 (74) 0.03
  No 16 6.86–25.14 1   61/110 (55)
 Liver cirrhosis
  Yes 5 0.01–9.99 1.58 0.96–2.59 21/28 (75) 0.07
  No 16 4.30–27.70 1   63/113 (56)
 Cancer
  Yes 18 0.00–39.72 0.87 0.52–1.46 18/33 (55) 0.59
  No 10 5.01–14.99 1   66/108 (61)
 Solid organ transplant
  Yes 5 0.98–9.02 1.31 0.80–2.15 21/30 (70) 0.28
  No 16 7.22–24.78 1   63/111 (57)
 Hematopoietic stem cell transplant
  Yes 7 a 0.87 0.12–6.26 1/2 (50) 0.89
  No 11 4.21–17.79 1   83/139 (60)
 HIV infection
  Yes a a 0.61 0.22–1.66 4/9 (44) 0.33
  No 10 4.12–15.88 1   80/132 (61)
 Chronic renal disease
  Yes 10 0.56–19.45 1.30 0.79–2.14 21/31 (68) 0.29
  No 13 3.92–22.08 1   63/110 (57)
 Obstructive pulmonary disease
  Yes 8 0.00–21.58 1.73 0.92–3.26 11/12 (92) 0.09
  No 12 3.85–20.15 1   73/129 (57)
 Trauma
  Yes a a 0.57 0.25–1.30 6/15 (40) 0.18
  No 10 3.27–16.73 1   78/126 (62)
 Systemic arterial hypertension
  Yes 8 2.39–13.61 1.16 0.75–1.80 33/56 (59) 0.51
  No 15 6.39–23.61 1   51/85 (60)
ICU length of stay previous to bacteremia > 8 days
 Yes 20 8.90–31.10 0.78 0.51–1.21 37/65 (57) 0.27
 No 9 5.20–12.80 1   47/76 (62)
Initial site of infection
 Primary bloodstream
  Yes 13 4.71–21.29 1.01 0.63–1.62 60/101 (59) 0.97
  No 9 2.98–15.02 1   24/40 (60)
 Pneumonia
  Yes 8 0.67–15.33 1.32 0.68–2.56 10/14 (71) 0.41
  No 13 4.88–21.13 1   74/127 (58)
 Surgical site
  Yes 13 4.22–21.78 1.22 0.58–2.52 76/130 (58) 0.60
  No 9 3.53–14.47 1   8/11 (73)
 Urinary tract
  Yes a a 0.05 0.00–10.63 0/3 (0) 0.27
  No a a 1   84/138 (61)
 Skin and soft tissue
  Yes 1 a 1.40 0.34–5.71 2/3 (67) 0.64
  No 12 5.27–18.73 1   82/138 (59)
Acinetobacter spp.
 Yes 2 0.00–4,51 1.85 1.21–2.85 43/59 (73) 0.005
 No 24 19.42–28,58 1   41/82 (50)
IIAT
 Yes 9 4.46–13.54 1.53 0.98–2.36 50/73 (68) 0.057
 No 24 7.06–40.95 1   34/68 (50)
  1. CI Confidence interval, HR Hazard Ratio, ICU intensive care unit, IIAT initial inappropriate antimicrobial treatment
  2. aNot possible to calculate median time and confidence interval