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Table 5 Median grades (interquartile ranges) for the three intervention periods

From: Physicians' and nurses' opinions on selective decontamination of the digestive tract and selective oropharyngeal decontamination: a survey

  N SDD SOD Standard care P value
   median (IQR) median (IQR) median (IQR)  
Nurses      
Workloada 207 5.0 (4.0-7.0) 4.0 (3.0-6.0) 2.0 (1.0-4.0) 0.000
Pt friendlinessb 197 4.0 (2.0-5.0) 4.0 (3.0-6.0) 7.0 (3.0-9.0) 0.000
Physicians      
Workloada 30 5.5 (3.8-7.0) 5.0 (3.0-6.0) 2.5 (2.0-4.0) 0.000
Pt friendlinessb 27 6.0 (4.0-7.0) 6.0 (4.0-6.0) 8.0 (6.0-9.0) 0.003
  1. IQR, interquartile range; N, number of responses; pt, patient; SDD, selective decontamination of the digestive tract; SOD, selective oropharyngeal decontamination.
  2. significance based upon Friedman test.
  3. a Workload measured on a scale from 1 (low) to 10 (high).
  4. b Patient friendliness measured on a scale from 1 (poor) to 10 (excellent).