From: The Magpie Trial follow up study: outcome after discharge from hospital for women and children recruited to a trial comparing magnesium sulphate with placebo for pre-eclampsia [ISRCTN86938761]
Observed false negative rate
(% of cases among screen negatives)
N = 500
(95% confidence interval)
5%
3.4% to 7.3%
2%
1.1% to 3.6%
1%
0.4% to 2.3%
0%
0% to 0.8%