Abstract: Objective: to analyze the effect of difference in gender, nationality, age, habit altitude, weight index, smoking, family history and the daily amount of salt intake on blood pressure level of specific groups of college students so as to investigate the correlation of blood pressure level of college students of different nationalities with these factors, learn the the relationship between blood pressure data of college students in the area and the incidence of high blood pressure, and provide evidence and suggestions for the prevention and treatment of high blood pressure. Methods: 518 college students from Sichuan University for Nationalitiesin Kangding County Guzan Town, GarzêPrefecture, Sichuan Province(with an average altitude of 1400 meters) as the research subjects. Questionnaire was used to survey the subjects’basic information, family history, living habits, and the subjects’sitting blood pressure was measured for three times on the same day. Results: the average systolic blood pressure of the 518 subjects was (120.68 + 9.50)mmHg, the average diastolic blood pressure (76.69 + 7.31)mmHg, and the mean arterial pressure (91.35 + 7.36)mmHg. 89 subjects contract high blood pressure, the incidence stood at 17.18%; difference in gender, nationality, age and smoking status caused significant difference in average systolic blood pressure, diastolic blood pressure and arterial pressure(P<0.01), difference in weight level and habit altitude caused difference in average systolic blood pressure, diastolic blood pressure and arterial pressure, which werestatistically significant (P<0.05), when daily salt intake amount was different, difference in average systolic blood pressure, diastolic blood pressure and arterial pressure was statistically insignificant (P>0.05); difference in gender, nationality, age and smoking status caused significant difference in incidence of high blood pressure (P<0.01), difference in weight level and habit elevation caused difference in incidence of high blood pressure, which wasstatistically significant (P<0.05), when daily salt intake amount and exercise habit were different, difference in incidence of high blood pressure was statistically insignificant (P>0.05). Conclusion: systolic blood pressure, diastolic blood pressure, arterial pressure and incidence of high blood pressure in 518 young students were affected by gender, nationality, age, habit elevation and weight, but basically had no connection with daily salt intake amount.

Key words: blood pressure, habitat elevation, the Kangding region, nationality, Tibetan, Yi nationality