| Objective:To establish the macroscopic quantitative diagnostic standard of kidney qi deficiency syndrome of elderly hypertension and explore a new method of standardization of TCM syndrome differentiation.Methods:Control study of modern literature and clinical retrospective study on distribution rule of TCM syndromes of elderly hypertension were respectively carried first. The macroscopic diagnostic scale of kidney qi deficiency of elderly hypertension was constituted according to literature research, clinical epidemiological investigation and expert consultation.Then, the reliability, validity and responsiveness of the scale were evaluated. The macroscopic quantitative diagnostic model and standard of kidney qi deficiency syndrome of elderly hypertension were established by determining item weights according to epidemiological investigation. Clinical diagnostic experiments were performed on the standard finally.Results:This research revealed that kidney qi deficiency was one of the most common TCM syndromes of elderly hypertension.The diagnostic scale of kidney qi deficiency of elderly hypertension was compiled and proved to have good reliability, validity and responsiveness. The quantitative diagnostic standard of kidney qi deficiency syndrome of elderly hypertension was established, whose lowest critical value was 220. Clinical diagnostic experiment showed that it had high sensitivity, specificity, accuracy and positive likelihood ratio.Conclusion:The diagnostic scale of kidney qi deficiency of elderly hypertension established through literature research, clinical epidemiological investigation, scale compilation, statistical analysis and clinical verification has good feasibility, accuracy and clinical practical value. The results of this research will offer standardized scale for further research of kidney qi deficiency syndrome of elderly hypertension and provide ideas and methods for standardization study on other syndromes.
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