1. HEALTH AND ILLNESS Assoc. Prof. Petko Salchev, MD, PhD

8. Model : agent – host – environment (etiological) agent host Mode of transmission environment

10. Enhanced model : agent – host – environment ( etiological - pathogenic ) agent host Mode of transmission environment Factors: Gender, age, genetic, psychological, lifestyle Factors: physicochemical, genetic, socio-economic Factors: Biological, genetic, nutritional, chemical, mechanical

15. Model of health – socio-medical concept health disease birth death life chronification Permanent disability (invalidity) Unknown factor Known factor treatment rehabilitation Promotion Primary prophylaxis Secondary prophylaxis Tertiary prophylaxis Vital processes Health activities diagnostics

22. Example : distribution of diastolic and systolic blood pressure norm norm mm Hg 20 120 140 240 200 220 160 180 100 80 60 40 diastolic systolic count

26. Integral model of health person health physical mental social physicochemical factors of the environment socio-economic factors - family, society, occupation

29. Strength of association in % of different factors with health 100 % 0 % Genome – 10% Health service – 10 % Lifestyle – 20% Physicochemical environmental factors – 10% Socio-economic factors – 50%