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Table 1 Causative organisms of all episodes of bacteraemia compared by study periods

From: Bloodstream infections in patients with malignancies: implications for antibiotic treatment in a Ghanaian tertiary setting

Isolates Period 1 Period 2 p value for X2 trend
Total 2010 (n = 18) 2011 (n = 30) Total 2012 (n = 33) 2013 (n = 12)
Gram negatives (n = 49) a25 a11a a14a a24 a19a a5a 0.504
 Enterobacteriaceae (n = 32) 16 8a 8a 16 12a 4a 0.658
  Escherichia coli (n = 8) 5 3 2 3 1 2 0.469
  Klebsiella pneumoniae (n = 3) 0 0 0 3 3 0 0.442
  Citrobacter species (n = 12) 8 4 4 4 4 0 0.071
  Enterobacter species (n = 7) 1 0 1 6 4 2 0.058
  Providencia species (n = 1) 1 0 1 0 0 0 0.329
  Salmonella typhimurium (n = 1) 1 1 0 0 0 0 0.045
 Acinetobacter species (n = 7) 3 3 0 4 4 0 0.314
 Pseudomonas aeruginosa (n = 10) 6 0 6 4 3 1 0.896
Gram positives (n = 40) a22 b7a a15a 18a a12a a6a 0.896
  Enterococcus species (n = 2) 1 1 0 1 1 0 0.881
  Staphylococcus aureus (n = 4) 3 1 2 1 1 0 0.241
  Staphylococcus epidermidis (n = 28) 16 5 11 12 8 4 0.738
  Streptococcus species (n = 6) 2 0 2 4 2 2 0.184
Fungi (n = 4)        
  Candida albicans (n = 4) b1 b0a b1a b3a b2a b1a 0.325
  1. Numbers with differing superscripts and subscripts within columns and rows, respectively, are significantly different at the p < 0.05
  2. X 2 Chi-square linear trend test with Mantel–Haenszel statistic, Period 1 first study period, Period 2 second study period