@article{(Open Science Index):https://publications.waset.org/pdf/160, title = {A New Method in Short-Term Heart Rate Variability — Five-Class Density Histogram}, author = {Liping Li and Ke Li and Changchun Liu and Chengyu Liu and Yuanyang Li}, country = {}, institution = {}, abstract = {A five-class density histogram with an index named cumulative density was proposed to analyze the short-term HRV. 150 subjects participated in the test, falling into three groups with equal numbers -- the healthy young group (Young), the healthy old group (Old), and the group of patients with congestive heart failure (CHF). Results of multiple comparisons showed a significant differences of the cumulative density in the three groups, with values 0.0238 for Young, 0.0406 for Old and 0.0732 for CHF (p<0.001). After 7 days and 14 days, 46 subjects from the Young and Old groups were retested twice following the same test protocol. Results showed good-to-excellent interclass correlations (ICC=0.783, 95% confidence interval 0.676-0.864). The Bland-Altman plots were used to reexamine the test-retest reliability. In conclusion, the method proposed could be a valid and reliable method to the short-term HRV assessment. }, journal = {International Journal of Biomedical and Biological Engineering}, volume = {5}, number = {9}, year = {2011}, pages = {394 - 397}, ee = {https://publications.waset.org/pdf/160}, url = {https://publications.waset.org/vol/57}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 57, 2011}, }