Evidence-Based Novel Changes in Prevalence and Symptom Characteristics of Spleen Deficiency Syndrome in Persons of Varied Health Status and Different Ages: A Cross-Sectional Observational Study

Figure 11

Feature selection based internal relationships of deficiency syndrome-related symptoms in SDS population. Lines of different widths represent the level of relevance between different symptoms. Several symptoms related to deficiency of qi (shortness of breath or wheezing), kidney (sexual dysfunction or infertility), lung (persistent cough with white sputum, easy to catch colds), stomach (abdominal pain relieved by pressure), yin (edema of face or feet, afternoon heat rising), and yang (slow sunken pulse) have formed tight-knit groups (lines in red) in SDS population.