Table 2 Overview of the main findings

1

MHR/FHR ambiguity stays within the same region as observed on Doppler-based CTG

2

a

A reduction in \(\text{mFHR}(t)\) is observed the last 150 min before birth

b

The reduction in \(\text{mFHR}(t)\) for the perinatal mortality group is larger, and occurs longer time before birth

3

a

The variance of \({\overline{\text{PDF}}}_{\text{hr}}\) increases for all subgroups closer to birth

b

A larger increase in the variance as well as a shift in the peak is observed for the perinatal mortality group