A 1978 French study of 3000 women aged 20--44 conducted by the National Institute of Demographic Studies included questions on satisfaction or dissatisfaction with currently used contraceptive methods and reasons for changing methods. Up to 2 reasons could be cited by a respondent for each method. 79.4% of the 855 pill users cited their efficacy as a reason for satisfaction and 45.5% cited their ease of use. Only 7.4% of pill users were "resigned", or unable to cite any motive for satisfaction with their method. 52.3% of the 267 IUD users stated as a reason for satisfaction their inability to use a more modern method, 44.4% cited ease of use, and 41.0% cited efficacy as advantages. 34.8% of IUD users were "resigned". Among the 153 condom users, 521 withdrawal users, and 173 periodic abstinence users respectively, 46.3%, 48.8%, and 51.6% cited health advantages or the naturalness of the method as reasons for satisfaction; 26.6%, 26.0%, and 28.3% cited a vague reason that no better method existed; 31.1%, 15.8%, and 17.6% stated they were unable to use a more modern method; and 54.5%, 46.6%, and 44.4% were in the "resigned" group. 23.6% of pill users cited secondary effects and medical causes, 12.2% cited health worries, and 16.0% cited constraints of use as reasons for dissatisfaction. 17.0% of IUD users cited secondary effects and medical reasons, 8.2% health worries, and 3.6% constraints of use as reasons for dissatisfaction. Among users of condoms, withdrawal, and periodic abstinence respectively, 18.5%, 21.9%, and 22.6% cited lack of efficacy; 13.5%, 13.2%, and 19.0% cited constraints of use; and 24.6%, 18.3%, and 16.1% cited sexual frustrations as reasons for dissatisfaction. The proportions of users citing at least 1 reason for dissatisfaction were 47.3% for pills, 35.7% for IUDs, 53.7% for condoms, 50.8% for withdrawal, and 56.6% for periodic abstinence. Pregnancy was feared by 7.8% of pill users, 21.6% of IUD users, 37.3% of condom users, 45.2% of withdrawal users, and 48.4% of periodic abstinence users. 17.2% of all users were considering a change of method, with proportions ranging from 4.6% of IUD users to 25.4% of condom users. Pill users suffering secondary effects were most likely to consider changing methods, while users of traditional methods who complained of sexual frustrations in use were most likely to consider a change. Nearly 80% of the women felt they were well informed about contraception. 93% of users of modern methods but less than 80% of users of traditional methods felt they had made a good choice.