Women's preferences for the levonorgestrel intrauterine system versus endometrial ablation for heavy menstrual bleeding.

OBJECTIVES: Women's preferences for treatment of heavy menstrual bleeding (HMB) are important in clinical decision-making. Our aim was to investigate whether women with HMB have a preference for treatment characteristics of the levonorgestrel intrauterine system (LNG-IUS) or endometrial ablation and to assess the relative importance of these characteristics. STUDY DESIGN: A discrete choice experiment was performed in general practices and gynaecology outpatient clinics in the Netherlands. Women with HMB were asked to choose between hypothetical profiles containing characteristics of LNG-IUS or endometrial ablation. Characteristics included procedure performed by gynaecologist or general practitioner; reversibility of the procedure; probability of dysmenorrhea; probability of irregular bleeding; additional use of contraception; need to repeat the procedure after five years; and treatment containing hormones. Data were analysed using panel mixed logit models. The main outcome measures were the relative importance of the characteristics and willingness to make trade-offs. RESULTS: 165 women completed the questionnaire; 36 (22%) patients were recruited from general practices and 129 (78%) patients were recruited from gynaecology outpatient clinics. The characteristic found most important was whether a treatment contains hormones. Women preferred a treatment without hormones, a treatment with the least side effects, and no need for a repeat procedure or additional contraception. Women completing the questionnaire at the gynaecology outpatient clinic differed from women in primary care in their preference for a definitive treatment to be performed by a gynaecologist. CONCLUSIONS: Whether or not a treatment contains hormones was the most important characteristic influencing patient treatment choice for HMB. Participants preferred characteristics that were mostly related to endometrial ablation, but were willing to trade-off between characteristics.

Patients' preferences for gonadotrophin-releasing hormone analogs in in vitro fertilization.

BACKGROUND: Gonadotrophin-releasing hormone (GnRH) antagonists reduce ovarian hyperstimulation syndrome (OHSS) at the price of a small reduction in effectiveness compared to GnRH agonists. The aim of this study was to investigate patients' preferences on effectiveness, safety and burden of GnRH analogs. METHODS: A discrete choice experiment (DCE) and a trade-off question were designed. Patients embarking on assisted reproductive technique treatment were asked to choose between two hypothetical medications which differed in effectiveness, safety and burden. RESULTS: A total of 172 questionnaires were analyzed. All attributes of the DCE had a statistically significant impact on the preference of the respondents. Respondents were willing to trade off 0.87 and 0.81% effectiveness for a decrease in OHSS risk and for fewer side effects, respectively. Respondents were not willing to trade off effectiveness for 'importance of compliance' (trade-off 0.40%) or a shorter 'duration of treatment' (trade-off 0.26%). The trade-off questions showed that already at a 2.0% increase in pregnancy rate in favor of the agonists, the majority of the respondents changed their preference from antagonists to agonists (2.0%, 95% CI 1.7-2.1). CONCLUSION: Safety and burden are important to patients, but are not important enough to make up for a small decrease in pregnancy rate.