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Table 4 Phenotypic characteristics of Acinetobacter isolates association with clinical factors

From: Characteristics of invasive Acinetobacter species isolates recovered in a pediatric academic center

  Biofilm-forming (n = 17) Non-biofilm-forming (n = 7) P value Swarming motility (n = 16) Non-swarming motility (n = 8) P value Twitching motility (n = 14) Non-twitching motility (n = 10) P value
Age (years) 4.0 (0.4–11.5) 3.0 (2.0–19.0) 0.84 4.5 (1.0–16.8) 3.5 (0.9–4.0) 0.37 3.5 (0.6–17.5) 3.5 (1.5–6.3) 0.57
Central line infection 64.7 % 85.7 % 0.38 68.8 % 66.7 % 0.99 71.4 % 70.0 % 0.99
Bacteremia at 48 h 17.6 % 0.0 % 0.53 12.5 % 12.5 % 0.99 14.3 % 10.0 % 0.99
MDR 5.9 % 42.9 % 0.027 18.8 % 12.5 % 0.80 21.4 % 10.0 % 0.48
ICU 35.3 % 28.6 % 0.76 37.5 % 25.0 % 0.56 42.9 % 20.0 % 0.26
Abx in past 30 days 47.1 % 28.6 % 0.43 37.5 % 50.0 % 0.67 42.9 % 40.0 % 0.99
Immuno-suppressant 29.4 % 71.4 % 0.06 43.8 % 37.5 % 0.78 42.9 % 40.0 % 0.99
Length of stay (days) 17.0 (4.5–80.0) 5.0 (3.0–20.0) 0.21 0.99 18.5 (4.3–63.3) 5.0 (3.3–35) 0.32 11.0 (3.0–97.5) 10.5 (4.5–27.3) 0.92
SHS exposure 23.5 % 28.6 % 0.99 34.1 % 53.5 % 0.13 28.6 % 20.0 % 0.99
GER 35.3 % 28.6 %   43.8 % 12.5 % 0.14 35.7 % 30.0 % 0.99
  1. Data are expressed as a percentage of cases with medians and ranges
  2. Abx antibiotic use in 30 days prior to infection; GER gastroesophageal reflux; ICU Intensive care unit care required; MDR multi-drug resistance with isolates non-susceptible to ≥ 1 antimicrobial agent in ≥ 3 antimicrobial categories; SHS secondhand smoke