Compr Psychiatry. 2026 Jul 27;150:152738. doi: 10.1016/j.comppsych.2026.152738. Online ahead of print.
ABSTRACT
INTRODUCTION: Anxiety is a common mental disorder with high individual and public health costs. Psychometric scales are frequently applied to describe anxiety severity; however, their subjective nature reduces measurement precision. Heart rate variability (HRV) may serve as a complementary tool for assessing anxiety by adding physiological information beyond subjective symptom ratings.
METHODS: We conducted a systematic review and meta-analysis, reported in accordance with PRISMA 2020 (PROSPERO: CRD42024623381). We considered studies on adult populations who had been given validated anxiety scales (BAI, HAM-A and STAI) as well as quantitative HRV parameters (HF, LF, LF/HF, RMSSD, and SDNN). Correlation coefficients quantifying the associations for multiple psychometric scale – HRV parameter pairs were synthesised employing an inverse-variance random- effects meta-analysis framework.
RESULTS: A total of 79 studies were included, of which 39 were eligible in a quantitative analysis. Three statistically significant associations were identified: (1) BAI and HF showed a weak negative correlation (r = -0.09, p = .0239), (2) HAM-A and HF had a moderate negative correlation (r = -0.32, p = .0423), while (3) STAI and LF/HF ratio showed a positive correlation (r = 0.39, p = .0017). Other parameters did not show significant associations.
CONCLUSION: Selected HRV parameters showed associations with anxiety severity, especially HF with BAI and HAM-A, and LF/HF with STAI. While HRV is not a replacement for psychometric scales, it may contribute as a complementary tool for characterising autonomic regulation associated with anxiety severity.
PMID:42543052 | DOI:10.1016/j.comppsych.2026.152738