Table 1 Hypothesized rates of primary outcome of death or moderate or severe impairment at 18–22 months: these rates were used for sample size calculation
| Â | Depth of cooling | Â | |
|---|---|---|---|
|  | 33.5 °C | 32.0 °C | Margin |
Duration of cooling | |||
 72 h | 45 % | 30 % | 37.5 % |
 120 h | 30 % | 25 % | 27.5 % |
Margin | 37.5Â % | 27.5Â % | Â |