One study isn't what convinces me, it's the existing body of evidence that does so. Organisations like WHO don't recommend a minimum of 6 months of exclusive breastfeeding because of a single study, and I don't claim to be able to interpret any of the studies better than them. Your complaints about the 'breastfeeding brigade' don't seem to square up with existing medical advice.
The NZ study is an interesting one because of its huge scope and the fact that NZ at the time (for some reason) didn't have a big link between socio-economic status and breastfeeding, like in Europe. So I do believe it was instrumental in changing medical advice around the world when it was published.
The NZ study is an interesting one because of its huge scope and the fact that NZ at the time (for some reason) didn't have a big link between socio-economic status and breastfeeding, like in Europe. So I do believe it was instrumental in changing medical advice around the world when it was published.