Table 1 Sample size estimates
From: Neonatal ECMO Study of Temperature (NEST) - a randomised controlled trial
Assumed mean scores of the two arms | Assumed SD of Bayley-III cognitive scores | Total sample size required for 90% power | Number needed to be recruited assuming 80% survival to 2 years |
|---|---|---|---|
85 & 95 | 15 | 94 | 118 |
85 & 95 | 10 | 42 | 53 |
90 & 95 | 10 | 168 | 210 |