Wow - she's been found guilty!  And the fathers alibi has been believed without checking!  Or she's been diagnosed with post partum depression without medical examination.  And nobody has yet checked out the paternal grandparents - abuse, statistically, often runs in families.  In the absence of a medical diagnosis it is also statistically more likely to have been the father.  

It is very dangerous to apply generalisations (or statistics) to such a situation.  The best that can be done is a close examination of the circumstances and assessment of the parents by trained and experienced professionals - not fool proof, but the best we can do. Unfortunately the low pay such work commands means that the work is often done by inexperienced, poorly trained professionals, or in a very hurried manner due to excessive caseloads.

Index of Frank's Diaries