Histogram and density plot of visual analogue scale (VAS) change scores. Mei-Ju Ko Hon-Yen Wu Hung-Yuan Chen Yen-Ling Chiu Shih-Ping Hsu Mei-Fen Pai Ju-YehYang Chun-Fu Lai Hui-Min Lu Shu-Chen Huang Shao-Yu Yang Su-Yin Wen Hsien-Ching Chiu Fu-Chang Hu Yu-Sen Peng Shiou-Hwa Jee 10.1371/journal.pone.0071404.g002 https://plos.figshare.com/articles/figure/_Histogram_and_density_plot_of_visual_analogue_scale_VAS_change_scores_/766026 <p>Frequency distribution of pruritus VAS change scores in the study participants. The density of vertical axis represents the percentage of study participants. The VAS change score = VAS score at follow-up − VAS score at baseline.</p> 2013-08-06 02:42:56 statistics Biostatistics Statistical methods Anatomy and physiology skin Skin physiology Clinical research design Cohort studies Prospective studies dermatology Nephrology Chronic kidney disease dialysis analogue