Objective: To use the theory of Traditional Chinese Medicine to identify the major symptom patterns of Parkinson's disease.
Methods: Journal databases were searched for relevant articles in the last 30 years. Articles were reviewed for symptom patterns of Parkinson's disease and analyzed using frequency analysis, cluster analysis, and other methods of data extraction.
Results: The analyses indicated that the most frequent symptom patterns of Parkinson's disease are Yin deficiency of kidney and liver, deficiency of Qi and blood, phlegm heat and wind stirring, blood stasis and wind stirring, and deficiency of Yin and Yang.
Conclusion: Taken together, the analyses identified the primary symptom patterns of Parkinson's disease as Yin deficiency of kidney and liver, deficiency of Qi and blood, phlegm heat and wind stirring, and blood stasis and wind stirring.
Keywords: Cluster analysis; Data extraction; Parkinson disease; Symptom complex.