MONTHLY AND SEASONAL DYNAMICS OF DEATH CASES CAUSED BY THE DISEASES OF THE CIRCULATORY SYSTEM IN BAKU

Abstract

Purpose: to assess the dynamics of the seasonal risk of death cases in metropolis on example of Baku city. Materials: medical certificates of all death cases registered in Baku during 2013 year (totally 12241, including 7971 cases connected diseases of the cir-culatory system). Methods: descriptive statistics of the average daily death cases, analysis methods of quality share signs of the circulatory system diseases amoung causes of death, correlation and regression of the relationship between with the possibility of death and the seasonal dynamics. Results: average monthly cases of death from all reasons and from BCSD made respectively: 1020±34,2 and 664,3±28,3. BCSD share among causes of death in a year made 65,1±0,4%. Average daily quantities of death cases from all reasons and from BCSD respectively made: 33,5±1,24 and 21,8±1,04. Higher than a median (33,4) average daily cases of death from all reasons were observed in February (43,0), March (37,2), April (34,9) and November (36,5). Above a median average daily cases of death owing to BCSD (20,0) were noted in February (29,3), March (24.3) , April (26,6), June (25,5), October (20,1) and November (20.4) . Average daily cases of death from all reasons for winter and spring period (35,8±1,57) statistically significantly (Р <;0,05) differed from average daily cases of death from all reasons for the summer-autumn period (31,3±1,49). The average daily quantity of death cases owing to BCSD was maximum in spring, and is minimum in fall (respectively: 23,6± 1,2 and 19,8±0,4; Р<0,05). It is obvious that the risk of mortality owing to BCSD is more in winter and spring period, especially in spring. The final result: despite the fact that the climate of Baku city is relatively mild, increasing of death risks in the winter and spring seasons are common.