Table 2

 Cardiopulmonary arrest event “predictability” and “potential avoidability” as a function of intensity of patient monitoring. Values are number (% of location total)

Location of arrest
Unmonitored unitsMonitored unitsICUsχ2, p value*
*Test for comparison of proportion of predictable and potentially avoidable arrests across the three unit settings.
Predictable arrest events4 (18)17 (33)14 (47)4.65, 0.098
Potentially avoidable arrest events6 (27)10 (20)3 (9)2.6, 0.272