How can a lower still birth rate in ‘vaccinated’ pregnant women mean that they are at higher risk of a still birth? It is all about what stage of their pregnancy they get vaccinated – there is ‘survivor bias’ in those vaccinated late in pregnancy.
Keep reading with a 7-day free trial
Subscribe to Where are the numbers? by Norman Fenton and Martin Neil to keep reading this post and get 7 days of free access to the full post archives.