The BMJ, London, UK.
London School of Hygiene and Tropical Medicine, London, UK.
BMJ Open. 2017 Feb 28;7(2):e015915. doi: 10.1136/bmjopen-2017-015915.
The Coronary Revascularisation Outcome Questionnaire (CROQ) is a patient-reported outcome measure (PROM) for coronary artery bypass surgery (CABG) and percutaneous coronary intervention (PCI). We tested the psychometric properties of a modified version (CROQv2) when administered in a National Health Service (NHS)/Department of Health (DH) funded pilot of PROMs for coronary revascularisation.
Psychometric validation study.
11 English hospitals in the UK taking part in the NHS/DH funded pilot of PROMs for coronary revascularisation.
Comprehensive analyses of acceptability, reliability, validity and responsiveness were conducted independently for each of the prerevascularisation (n=2685 and n=3711) and postrevascularisation (n=869 and n=837) versions of the CROQ-CABG and CROQ-PCI, respectively.
All versions met prespecified stringent criteria for (1) acceptability of items (missing data) and scales (missing data, floor and ceiling effects, skewness); (2) tests of scaling assumptions; (3) reliability: internal consistency (Cronbach's α, item-total correlations); (4) construct validity based on within-scale analyses (internal consistency, intercorrelations between scales, factor analysis and hypothesis testing); (5) construct validity based on comparisons with external measures (convergent and discriminant validity and hypothesis testing) and (6) responsiveness. Results were also confirmed when tests were repeated on subsamples of CABG (n=639) and PCI (n=615) patients who reported receiving help completing prerevascularisation questionnaires.
The availability of a psychometrically robust procedure-specific tool that could be used as part of a large-scale coronary revascularisation PROMs programme to capture the patients' perspective of coronary revascularisation will enable outcomes important to patients to be routinely collected alongside clinical outcomes. The CROQ is suitable for administration by postal survey or the prerevascularisation versions can be administered in the clinical setting as in the Coronary Revascularisation PROMs Pilot.
冠状动脉血运重建结局问卷（CROQ）是一种用于冠状动脉旁路移植术（CABG）和经皮冠状动脉介入治疗（PCI）的患者报告结局测量（PROM）。我们在英国国民健康服务（NHS）/卫生部（DH）资助的冠状动脉血运重建 PROM 试点项目中测试了改良版（CROQv2）的心理测量学特性。
心理测量验证研究。
英国 11 家参与 NHS/DH 资助的冠状动脉血运重建 PROM 试点项目的医院。
对 CROQ-CABG 和 CROQ-PCI 的血管前（分别为 2685 名和 3711 名）和血管后（分别为 869 名和 837 名）版本，分别进行了接受度、信度、效度和反应度的综合分析。
所有版本均满足以下严格标准：（1）项目（缺失数据）和量表（缺失数据、下限和上限效应、偏度）的可接受性；（2）量表制定假设检验；（3）信度：内部一致性（克朗巴赫α、项目总分相关性）；（4）基于量表内分析的构念效度（内部一致性、量表间相关性、因子分析和假设检验）；（5）基于与外部测量值比较的构念效度（收敛和判别效度和假设检验）和（6）反应性。当在接受过 CABG（n=639）和 PCI（n=615）患者亚组中重复测试时，也得到了相同的结果，这些患者报告在填写血管前问卷时得到了帮助。
有了一种心理测量学上可靠的特定于手术的工具，该工具可作为大规模冠状动脉血运重建 PROM 项目的一部分，用于获取患者对冠状动脉血运重建的看法，这将使重要的患者结局能够与临床结局一起得到常规收集。CROQ 适合通过邮寄调查进行管理，或者可以在临床环境下管理血管前版本，就像在冠状动脉血运重建 PROM 试点项目中那样。
