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Table 3 Comparison of the incidence of adverse events in the two groups

From: Application of comprehensive unit-based safety program model in the inter-hospital transfer of patients with critical diseases: a retrospective controlled study

adverse eventsn [n(%)] Control group(n = 202) Observational group(n = 224) χ2/Z P
Number of cases of adverse events 76 (37.62) 41 (18.30) 19.854 <0.001
Number of cases of adverse events 12 (5.94) 6 (2.68) −3.007 0.003
High-risk adverse events 41 (20.30) 30 (13.40)
Events with hidden danger 23 (11.39) 5 (2.23)