Table 4

Results for unit A

SourcePseudomonas isolates per total no of patients treated on unitNo of patients who had swab tested per total no of patients treated on unitPseudomonas isolates per no of patients who had swab tested
Period 1Period 2Fisher’s exact testPeriod 1Period 2χ2 testPeriod 1Period 2Fisher’s exact test
Conjunctiva0.8% (19/2430)0.050% (2/4032)p<0.0013% (73/2430)0.97% (39/4032)p=<0.00126% (19/73)5.1% (2/39)p=0.015
Respiratory tract 3.8% (153/4032)
  • Figures for total number of patients treated calculated from weekly totals.

  • Samples did not specify location of patients accurately in period 1; location of all conjunctival samples verified from clinical notes.