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Table 6 Subgroup analysis results using medians of the baseline incidences as the cut-off values

From: Baseline hospital performance and the impact of medical emergency teams: Modelling vs. conventional subgroup analysis

  Change in incidence of primary outcome Change in incidence of unexpected cardiac arrests Change in incidence of unplanned ICU admissions Change in incidence of unexpected deaths
Group with baseline incidence ≥ medians
Weighted difference (MET versus Control) 0.402 0.536 0.091 0.222
P (0.776) (0.315) (0.937) (0.636)
Number of hospitals 12 12 12 12
Group with baseline incidence < medians     
Weighted difference (MET versus Control) 1.597 0.726 1.258 -0.118
P 0.200 0.042* 0.325 0.678
Number of hospitals 11 11 11 11
  1. * Significant at 5%