Development and validation of the self-volume management behaviour questionnaire for patients with chronic heart failure

Abstract

Aims: We aim to develop and validate a questionnaire on the behaviour of self-volume management of patients with chronic heart failure.

Methods and results: Based on the specific situation theory of heart failure self-care, the items of this questionnaire were formed through literature review and expert consultation. Content validity is judged by expert consultation. Item analysis was used for further filter entries. Cronbach's alpha and retest were used for reliability. Exploratory factor analysis and confirmatory factor analysis were used to test the structural validity. The questionnaire finally contained 3 subscales and 22 items. The Cronbach's α was between 0.732 and 0.797. The reliability of the retest was between 0.983 and 0.998. In expert consultation, the I-CVI of each item was 0.92-1, and the S-CVI of each subscale was 0.99, 1.00, and 0.99. In exploratory factor analysis, each subscale has two factors. In confirmatory factor analysis, the model fits of the three subscales were good: χ²/df < 3, RMSEA < 0.08, CFI > 0.9, TLI > 0.9, and SRMR < 0.05.

Conclusions: The study has shown that the questionnaire on the behaviour of self-volume management of patients with chronic heart failure has good reliability and validity. It can be used as an evaluation tool for evaluating the self-volume management behaviour of patients with chronic heart failure.

Keywords: Blood volume; Heart failure; Self‐management; Validation study.

Figure 1

Maintenance of self‐volume management. Note: ‘1’ means ‘taking diuretics’; ‘2’ means ‘limiting water and sodium intake’; ‘a’ means ‘No.’.

Figure 2

Perception of Volume Overload. Note: ‘1’ means ‘perception of somatic symptoms/signs’; ‘2’ means ‘perception of volume overload symptoms/signs’; ‘a’ means ‘No.’.

Figure 3

Coping with volume overload. Note: ‘1’ means ‘self‐adjustment behaviours’; ‘2’ means ‘counselling behaviours’; ‘a’ means ‘No.’.