Good reliability and validity for a new utility instrument measuring the birth experience, the Labor and Delivery Index

Objectives To validate the Labor and Delivery Index (LADY-X), a new delivery-specific utility measure. Study Design and Setting In a test–retest design, women were surveyed online, 6 to 8 weeks postpartum and again 1 to 2 weeks later. For reliability testing, we assessed the standard error of measurement (S.E.M.) and the intraclass correlation...

Calculating Preference Weights for the Labor and Delivery Index: A Discrete Choice Experiment on Women’s Birth Experiences

Objective The aim of this study was to calculate preference weights for the Labor and Delivery Index (LADY-X) to make it suitable as a utility measure for perinatal care studies. Methods In an online discrete choice experiment, 18 pairs of hypothetical scenarios were presented to respondents, from which they had to choose a preferred option. The...

A comprehensive representation of the birth-experience: Identification and prioritization of birth-specific domains based on a mixed-method design

Background: In obstetrics, effectiveness and cost-effectiveness studies often present several specific outcomes with likely contradicting results and may not reflect what is important for women. A birth-specific outcome measure that combines the core domains into one utility score would solve this problem. The aim of this study was to...

Adaptive Conjoint Analysis as individual preference assessment tool: Feasibility through the internet and reliability of preferences

Objective: Patient values are not routinely assessed in clinical practice. Adaptive Conjoint Analysis (ACA) is increasingly applied in studies assessing treatment preferences, and could provide a means to routinely assess individual patients' treatment preferences. Methods: An ACA-questionnaire was administered three times (7-10 days apart) to...