Brief pain inventory and pain detection questionnaire based on WeChat and paper versions for collecting data on patients with herpes zoster-induced neuralgia: An analysis for their validity and reliability.

BACKGROUND

This study explored the validity and reliability of brief pain inventory (BPI) and pain detection questionnaire (PD-Q) based on WeChat and paper versions for collecting data on patients with herpes zoster-induced neuralgia.

METHODS

The study participants were 160 patients with herpes zoster-induced neuralgia admitted in our hospital from December 2017 to June 2020. Initially, the participants were randomly divided into group A (n = 80) and group B (n = 80). Then, they were required to complete the Chinese versions of the BPI and PD-Q. In group A, the WeChat version was finished first, followed by the paper version. In group B, the paper version was completed first, followed by the WeChat version. Then, the test-retest reliability was analyzed by comparing the intraclass correlation coefficient (ICC) between the 2 groups. Bland-Altman plots and Pearson correlation coefficient were used to analyze the concordance between the paper and WeChat versions.

RESULTS

Patients generally preferred the WeChat version of the BPI and PD-Q, particularly men and patients with pain duration ≥ 30 minutes. Specifically, no significant differences in the completion time of the BPI and PD-Q was found between the 2 groups. All patients had high test-retest reliability and internal consistency for both WeChat and paper versions (BPI: ICC, 0.913; Cronbach alpha coefficient, 0.959; PD-Q: ICC, 0.825; Cronbach alpha coefficient, 0.894). Bland-Altman plots indicated no significant systematic deviations between the WeChat and paper versions. Pearson correlation coefficient revealed a strong correlation between BPI (Spearman, 0.928) and PD-Q (Spearman, 0.830) questionnaires.

CONCLUSION

The WeChat and paper versions of the BPI and PD-Q have good repeatability, reliability, and consistency for collecting data on patients with herpes zoster-induced neuralgia.