Figure 1

Hands-on time in witnessed cardiac arrests. Hands-on time during consecutive 30 sec intervals during the first 180 sec after the onset of a witnessed cardiac arrest. Data are means ± SEM; open bars = preformed teams; filled bars = ad-hoc forming teams; * = P < 0.001 for difference between the type of teams during time interval indicated. As hands-on times did not differ between general practitioners and hospital physicians, for the sake of clarity bars were not further subdivided according to type of physician.