TABLE 2

Laboratory turnaround time for the most common organisms

Major organismNo. (%) of
isolates
Turnaround time (days) (median [IQRa])
Gram stain
(n = 8,024)
Organism identification
(n = 8,383)
Antimicrobial
test (n = 5,054)
Bacteria6,412 (76.5)0.80 (0.64–1.08)1.81 (1.34–2.46)2.71 (2.46–2.99)
    Gram positive
        Staphylococcus aureus2,690 (32.1)0.89 (0.72–1.20)1.62 (1.00–1.95)2.79 (2.55–3.10)
        Streptococcus agalactiae, S. pneumoniae,
S. pyogenes
688 (8.2)0.67 (0.59–0.79)1.50 (0.80–1.78)2.68 (2.45–2.90)
        Enterococcus faecalis, E. faecium567 (6.8)0.82 (0.69–1.07)1.62 (0.87–1.99)2.90 (2.62–3.20)
    Gram negative
        Escherichia coli1,618 (19.3)0.70 (0.58–0.97)2.45 (1.91–2.73)2.61 (2.37–2.86)
        Klebsiella pneumoniae462 (5.5)0.77 (0.61–1.13)2.44 (1.92–2.77)2.57 (2.26–2.84)
        Pseudomonas aeruginosa202 (2.4)0.82 (0.65–1.18)1.96 (1.57–2.61)2.67 (2.51–2.88)
        Proteus mirabilis185 (2.2)0.95 (0.81–1.37)2.14 (1.79–2.81)2.83 (2.63–3.00)
Fungi
    Candidab516 (6.2)1.98 (1.38–2.87)3.76 (2.84–5.10)NAc
Polymicrobial1,455 (17.4)0.99 (0.74–1.48)1.69 (1.09–2.34)3.10 (2.70–3.89)
Overall8,383 (100.0)0.85 (0.66–1.27)1.83 (1.34–2.55)2.76 (2.49–3.12)
  • a IQR, interquartile range.

  • b Candida species with the highest frequencies included C. albicans, C. krusei, C. parapsilosis, and C. tropicalis.

  • c NA, not available.