We conducted 3501 telephone interviews to determine the sexual and protecti
ve behaviours of the general population in Quebec. Among the 858 respondent
s who had had at least one occasional partner during the last 5 years, 25.4
% had had at least one occasional partner who refused to use a condom. More
women had had an occasional partner who had refused than men (29.8% vs 21.
1%, P<0.001) and fewer women than men succeeded in negotiating condom use,
but more of these women decided not to have sexual relations. The frequency
of condom use during the last sexual relation changes if the partner is a
regular cohabiting partner (12.5%), a regular non-co-habiting partner (42.2
%) or an occasional partner (70.8%). Our study provides important informati
on for the development of prevention programmes for the heterosexual popula
tion and demonstrates the importance of the type of relationship maintained
by the partners on the sexual behaviours.