Background: Infertility and its treatment have negative impacts on a couple’s marital relationship, sexual life, psychological state and interpersonal relationships, causing personal distress. Health-related quality of life (HRQoL) has become an important component of health outcomes. HRQoL instruments developed in western culture are not always appropriate for use in China due to cultural diferences. Probably due to the unique concept of fertility in China, infertility patients can be looked down upon and the family may feel shameful. This study aims to develop a HRQoL instrument for infertile couples based on the Chinese social and cultural setting. 

Methods: Complementary mixed methods will be used to develop a new HRQoL instrument for Chinese infertile couples. The study consists of four stages: the frst stage will involve a systematic review and qualitative interviews to construct draft candidate items. In the second stage, quantitative research [e.g., exploratory factor analysis (EFA), item response theory (IRT)] and cognitive interviews will be used for item selection. The third stage will be instrument validation, in which classical test theory (CTT) and IRT will be applied. In the fnal stage, the minimal clinically importantdiference (MCID) will be calculated by using distribution-based methods and anchor-based methods (e.g., logistic regression, receiver operating characteristic curve). 

Discussion: The new HRQoL instrument for Chinese infertile couples will be developed, which will provide a standard and efective HRQoL instrument in clinical outcome assessment and health outcome measurement.

作者：Zhao Shi, Zhuxin Mao, Hongwei Nie, Ling Geng, Gang Chen, Shunping Li

文章来源：Health and Quality of Life Outcomes, 2022