Ann Clin Microbiol 2023;26:147-157. Analysis of blood culture data at a university hospital: bacterial distribution and cumulative antimicrobial resistance (2016–2020)
Table 2. The number (%) of significant pathogens isolated from blood cultures during the 2016-2020
 2016
No. (%)
2017
No. (%)
2018
No. (%)
2019
No. (%)
2020
No. (%)
Total
No. (%, 95% CI)
E. coli*410 (23.4)458 (25.4)452 (26.5)513 (29.6)542 (30.8)2,375 (27.1, 26.2-28.1)
K. pneumoniae152 (8.7)159 (8.8)195 (11.4)173 (10.0)209 (11.9)888 (10.1, 9.5-10.8)
S. aureus156 (8.9)162 (9.0)164 (9.6)131 (7.5)139 (7.9)752 (8.6, 8.2-9.2)
S. epidermidis*186 (10.6)177 (9.8)152 (8.9)130 (7.5)100 (5.7)745 (8.5, 7.9-9.1)
E. faecium*67 (3.8)80 (4.4)77 (4.5)98 (5.6)115 (6.5)437 (5.0, 4.6-5.5)
A. baumannii89 (5.1)80 (4.4)57 (3.3)55 (3.2)67 (3.8)348 (4.0, 3.6-4.4)
S. hominis*90 (5.1)91 (5.1)61 (3.6)39 (2.2)35 (2.0)316 (3.6, 3.2-4.0)
E. faecalis60 (3.4)53 (2.9)61 (3.6)63 (3.6)43 (2.4)280 (3.2, 2.9-3.6)
P. aeruginosa27 (1.5)36 (2.0)39 (2.3)46 (2.6)49 (2.8)197 (2.2, 2.0-2.6)
S. capitis38 (2.2)36 (2.0)33 (1.9)35 (2.0)32 (1.8)174 (2.0, 1.7-2.3)
Others476 (27.2)468 (26.0)416 (24.4)453 (26.1)431 (24.5)2,244‡ (25.6, 24.7-26.6)
Total1,751(100)1,800 (100)1,707 (100)1,736 (100)1,762 (100)8,756 (100)

*P < 0.001; †P < 0.01; ‡C. albicans 153 (1.7%), S. haemolyticus 130 (1.5%), P. mirabilis 114 (1.3%), E. cloacae 103 (1.2%), S. agalactiae 103 (1.2%), C. parapsilosis 79 (0.9%), K. oxytoca 67 (0.8%), S. marcescens 66 (0.8%), C. tropicalis 62 (0.7%), K. aerogenes 62 (0.7%), others 1,305 (14.9%). Abbreviation: CI, confidence interval.