Physorg.com -- The prevalence of smoking and exposure to tobacco smoke among men in France has fallen by more than 15 per cent since the mid 1980s, but over the same 20-year period has increased among women. As a result, investigators from the World Health Organization French MONICA (MONItoring trends and determinants in CArdiovascular disease) centre say the divergent smoking trends predict changes in death rates from coronary heart disease in French men and women since 1985 - estimated as a decline in men of 10-15 per cent, but an increase among women of 0.1-3.6 per cent.