Hormones seem to affect asthma.
'Women with asthma who are going through puberty, pregnancy or are menstruating, are at higher risk of severe asthma attacks'
www.bbc.co.uk/news/health-61234443
Quite a stark difference in the figures.
'According to ONS figures in the report, more than 5,100 women have died from an asthma attack, compared with under 2,300 men over the past five years.
Rates of hospital admission for asthma in England are similar for girls and boys in their early teens, but more than twice as high in women from the age of 20-50, the report says.'
Yet, perhaps depressingly unsurprising:
'"There is not enough research into why women are more likely to be hospitalised and die from asthma and what treatments, new and existing, could help women"