BACKGROUND: According to 2008’s Guangxi philosophical and social science “eleventh five-year plan” studying item of “constitution and health developing research on Guangxi gathering minority in remote mountainous areas”, this paper has an integrative evaluation on the twelve gathering minorities in Guangxi from the age of 18 to 22 years, and explores all the affected factors to minority’s constitution.
OBJECTIVE: By designing factor analysis model and observing the most complicated correlativity among variables, the authors try to find out the potential dominating factor for variables’ change, to explain the practice meaning of common factors and to evaluate constitution health level of the minority with impersonality.
METHODS: In order to make sure sample’s homogenicity, science and representation, the tested objects’ parents must be minority and the tested minority samples were the Chuang, the Dong , the Yao, the Miao, the Maonan, the Jing, the Shui, the Gelao, the Mulao, the Hui, the Tujia. With the four steps of spot investigation, small sample test for feasibility, large sample normal test and designing index system, the authors tested the constitution of 18 560 minorities. The authors get factor eigenvector, eigenvalue and contribution rate. Then designed initial factor model and factor model after rotation, know about the factor structure of Guangxi gathering minority, and have an integrative evaluation for the group’s health by observing the index of stature, body weight, vital capacity, standing proneness, halt long-jump and step jump.
RESULTS AND CONCLUSION: The minority group’s constitution structures are health factor, nutrition factor and aerobic metabolism factor. Health factor only includes positive number in vital capacity, body anteflexion, standing long jump, but negative number in other three items. They respective contribution to constitution are K1=61.551%, K2=15.264%, K3=9.818%, and the general contribution rate is 86.333%. The best health factor is the Maonan, then the Gelao and the Tujia; the best nutrition factor is the Shui, then the Miao and the Jing; the best aerobic metabolism factor is the Gelao, then the Maonan and the Tujia. Using designing factor analysis model, explaining the practice meaning of common factor, we can evaluate constitution health level of the minority with impersonality.