Block 13 - part 1 Flashcards
Percentage of deaths caused by CHD in UK
29% men, 28% women
why are death rates from CHD falling
improved risk factors, better treatments
effect of health inequalities on CHD
lower social class at higher risk - health behaviours
4 non-modifiable risk factors for CHD
increased age, fam hx, gender (men> before age of 60), race (high rate for african americans and asians)
modifiable risks for CHD
Elevated blood cholesterol, high LDL, low HDL, High BP, diabetes, smoking,obesity, inactivity, excessive alcohol, excessive stress
risk
probability of an event in a given time period
equation for risk ratio
risk ratio = risk (exposed)/risk (unexposed) a= risk and disease present b= risk present, disease absent c= risk absent, disease present d = risk and disease absent RR=a/(a+b)/c/(c+d)
equation for risk difference
risk(exposed)-risk(unexposed)
odds ratio
probability of disease occurring in exposed group/probability of disease occurring in unexposed group
equation for odds ratio
a= risk and disease present b= risk present, disease absent c= risk absent, disease present d = risk and disease absent
OR = (a/c)/(b/d)
=(ad)/(bc)
population attributable risk
the risk of disease will increase as the exposure prevalence or relative risk increases
leading cause of cancer mortality
lung cancer
main risk factors for lung cancer
smoking, radon, asbestos, environmental tobacco exposure, genetics, other lung diseases, prior radiation in chest area
percentage of lung cancer caused by smoking
90%
second leading cause of lung cancer after smoking
radon
types of lung cancer
small cell (13%), non small cell (87%): Adenocarcinoma (>40%), squamous cell carcinoma (20%), large cell carcinoma (2%) Mesotheloma
number of people in world infected with TB
1/3 of world population
deaths by TB each year
3 million