Suzuki Yuta, Shiroiwa Takeru, Murata Tatsunori, Kamono Emi, Morii Yasuhiro, Fukuda Takashi
Center for Outcomes Research and Economic Evaluation for Health (C2H), National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0197, Japan.
Crecon Medical Assessment Co., Ltd, Tokyo, Japan.
Health Qual Life Outcomes. 2025 Jun 13;23(1):61. doi: 10.1186/s12955-025-02393-9.
The AP-7D is a preference-based measure that was recently developed for use in East and Southeast Asia. This study investigated the reliability and convergent validity of the new instrument.
For this, surveys were conducted in Japan, Korea, China, Thailand, and Singapore. In each country, 500 respondents were selected using quota sampling and were stratified by sex and age. We conducted a face-to-face survey in Japan and a web-based survey in the remaining countries at two time points. The AP-7D and the EQ-5D-5L were collected from all countries, and the SF-6D was only collected in Japan. The instruments' reliabilities were confirmed by comparing the responses using self-report test-retest methods. For convergent validity, we compared responses provided to the AP-7D with those provided to the EQ-5D-5L and the SF-6D based on predetermined hypotheses.
The percentage of agreement between the two surveys (in separate categories) was 73.9% (pain/discomfort), 71.2% (mental health), 68.6% (energy), 89.6% (mobility), 82.1% (work/school), 84.3% (social relations), and 86.4% (burden to others) in the five countries. These values demonstrate equivalent performance to those of the EQ-5D-5L. The kappa coefficients for the AP-7D items were similar to those for the EQ-5D-5L. In the correlation matrix between the AP-7D and EQ-5D-5L, correlation exceeded 0.5 in the following items: 0.69 between "mental health" (AP-7D) and "anxiety/depression" (EQ-5D-5L), 0.54 for "pain/discomfort" in both, 0.51 between "energy" (AP-7D) and "anxiety/depression" (EQ-5D-5L), and 0.50 for "mobility" in both.
The results of this survey showed the good test-retest reliability and convergent validity of the AP-7D. The basic psychometric properties of the new instrument were confirmed.
AP - 7D是一种最近为在东亚和东南亚地区使用而开发的基于偏好的测量工具。本研究调查了这一新工具的信度和收敛效度。
为此，在日本、韩国、中国、泰国和新加坡进行了调查。在每个国家，采用配额抽样选取500名受访者，并按性别和年龄进行分层。我们在日本进行了面对面调查，在其余国家的两个时间点进行了基于网络的调查。所有国家均收集了AP - 7D和EQ - 5D - 5L，仅在日本收集了SF - 6D。通过使用自我报告重测法比较回答来确认工具的信度。对于收敛效度，我们根据预先设定的假设，将对AP - 7D的回答与对EQ - 5D - 5L和SF - 6D的回答进行了比较。
在五个国家中，两次调查（按不同类别）之间的一致率分别为：疼痛/不适73.9%、心理健康71.2%、精力68.6%、行动能力89.6%、工作/学习82.1%、社会关系84.3%、对他人的负担86.4%。这些值表明其表现与EQ - 5D - 5L相当。AP - 7D项目的kappa系数与EQ - 5D - 5L的相似。在AP - 7D和EQ - 5D - 5L的相关矩阵中，以下项目的相关性超过0.5：“心理健康”（AP - 7D）与“焦虑/抑郁”（EQ - 5D - 5L）之间为0.69，两者的“疼痛/不适”均为0.54，“精力”（AP - 7D）与“焦虑/抑郁”（EQ - 5D - 5L）之间为0.51，两者的“行动能力”均为0.50。
本次调查结果显示了AP - 7D良好的重测信度和收敛效度。新工具的基本心理测量特性得到了确认。
