Results: There were 548 complete records, mean age 42.5 years, 68% male. Most patients with a partner (married/de facto) disclosed to them (97%) but were less likely to disclose to anyone else, compared with other patients (p=0.0002). Women were more likely to disclose to a friend compared with men (p=0.0063). Younger patients were more likely to disclose to parents or siblings, while older patients were more likely to disclose to their children (Chi2 test for linear trend: p<0.0001). Of patients with dependent children (62%), single parents were less likely to disclose to children than others (p=0.027).