Only since childbirth became sanitary.
Mean life expectancy during the Middle Ages was in the low forties for women, mid-forties for men. Men lived, on average about 10% longer than women, even accounting for wars because childbirth and complications were so common.
Not sure if anyone mentioned this, but in times of crisis, famine, etc, it was traditionally the MEN who SACRIFICED (their food rations, took greater physical risks, etc) so the women and children could survive. That might be a component missing from this analysis ...