Women's casualty five times lower than men

Since 1975, when women first summited Everest, men's death rate has been higher than women's in every single decade on record. The death rate for both has fallen, but at a lesser rate for women. The present gap is the widest ever. Women remain fewer than 9 percent of all climbers, and nearly all dangerous route-preparation work is done by male Sherpa workers. These reasons partly explain the lower casualty rate of women.