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Table 3 Difference in sensitivity pattern of frequently isolated Gram negative rods during two halves of study period.

From: Emergence of Carbapenem resistant Gram negative and vancomycin resistant Gram positive organisms in bacteremic isolates of febrile neutropenic patients: A descriptive study

(a)           
  Enterobacteriaceae Pseudomonas. aeruginosa
  Period 1 Period II   Period I Period II  
  n = 55 % n = 212 % P-value n = 15 % n = 34 % P-value
Amikacin 6 10.9 35 16.5 0.305 0 0 4 11.8 0.298 #
Amox/clav 25 45.5 102 48.1 0.725 NT NT NT NT -
Ceftriaxone 13 23.6 118 55.7 < 0001* NT NT NT NT -
Ciprofloxacin 15 27.3 105 49.5 0.003 * 2 13.3 10 29.4 0.298 #
Tazocin 0 0 24 11.3 0.006 * 0 0 4 11.8 0.298 #
Imipenem 0 0 0 0 - 0 0 2 5.9 0.999 #
Ceftazidime NT NT NT NT - 1 6.7 2 5.9 0.999 #
(b)           
  Pseudomonas species Acinetobactor
  Period 1 Period II   Period 1 Period II  
  n = 8 % n = 29 % p-value n = 6 % n = 52 % p-value
Amikacin 4 50.0 12 41.4 0.705 # 1 16.7 27 51.9 0.195 #
Amox/clavilunate NT NT NT NT - NT NT NT NT -
Ceftriaxone 0 0 7 24.1 0.308 # 0 0 39 75.0 0.001 #*
Ciprofloxacin 1 12.5 7 24.1 0.655 # 0 0 33 63.5 0.004 #*
Pipracillin/Tazobactam 0 0 2 6.9 0.999 # 0 0 34 65.4 0.003 #*
Imipenem 0 0 6 20.7 0.305 # 0 0 34 65.4 0.003 #*
Ceftazidime NT NT NT NT - NT NT NT NT -
  1. p-values calculated by Chi square test otherwise indicated
  2. # p-value calculated by Fisher exact test
  3. * p < 0.05