In combination, healing of damaged or infected tissue may be impaired, and morbidity and mortality increased.
During that period, maternal mortality increased nearly threefold, and the salaries of medical personnel decreased drastically.
However, mortality from lung cancer increased significantly over this period.
More worryingly, mortality from lung cancer is still increasing.
COPD is one of the few diseases that the mortality has increased since the '60s.
Perinatal mortality is lowest at 40 weeks' gestation and does not increase until after 42 weeks, and then only slightly.
This threshold, they report, is "closely correlated" with levels above which, other researchers say, mortality increases sharply.
Both morbidity and mortality have increased significantly.
Infant and maternal mortality, along with many other diseases, increased because of such beliefs.
In some countries, for example Malawi, maternal mortality is increasing.