Factor analysis of hemodynamics daily parameters in students of the Northern Medical University

The purpose was to find out the hidden common factors characterizing the relationship between the parameters of daily hemodynamics in students of the northern medical university. Methods. A factor analysis of hemodynamics data obtained during the daily monitoring of arterial pressure and heart rate in students of Khanty-Mansiysk State Medical Academy (35 boys and 61 girls) was carried out. Results. The analysis revealed two factors in groups. According to the first factor, the mesor factor loading of the index of functional changes (r = 0,833) and the daytime values of the IFI (r = 0,923) and the IAD DB (r = 0,708) achieved significant values in the young men. In the girls: SAD (r = 0,862), DBP (r = 0,767) and IFI (r = 0,919), daily SBP values (r = 0,889), DBP (r = 0,867), IFI (r = 0,942), IV DBP (r = 0,713) (total dispersions are 34,37 % and 39,05 %). The second factor included night hemodynamic parameters in both groups. The young men had: IFI night (r = 0,808), SAD night. (r = 0,813), DBP overnight. (r = 0,892), IV SBP overnight. (r = 0,766), IV DBP at night. (r = 0,778), night decrease of SBP (r = –0,822) and DBP (r = –0,806), in girls: SAD night. (r = 0,776), DBP overnight. (r = 0,836), IV DBP of night. (r = 0,740), SB SBP (r = –0,797) and NS DBP (r = –0,865) (the total variance is 23,04 % and 17,68 %). Conclusion. Differences were found in the structure of the relationship of hemodynamic indices associated with gender. The first factor was formed by daily and average daily hemodynamic indices; in girls its composition is determined by a large number of variables 7 against 3 in boys. The second factor was formed by the night values of hemodynamic indices in both groups. Day and night indices of hemodynamics did not correlate. © 2018 Northern State Medical University. All Rights Reserved.