Higher ‘femininity' in men and decreased risk of death from coronary heart disease

An interesting recent study published in IJE regarding degree of 'feminity' in men and risk of CHD mortality... however the methods are rather vague on the definitions of 'feminity' or the index components.

Decreased risk of death from coronary heart disease amongst men with higher ‘femininity’ scores: a general population cohort study
http://ije.oxfordjournals.org/cgi/content/full/dym022v1

Comments on this study are welcome.