An analysis of 35,964 patients by Dialysis Outcomes and Practice Patterns Study (DOPPS) researchers has revealed sex--specific differences in haemodialysis use. Among these patients, more men than women were on haemodialysis (59% versus 41%, respectively). The researchers also found that the survival advantage of women in the general population was reduced in patients on haemodialysis, and that the mortality risk associated with several comorbidities and catheter use was lower for men than for women.