Edexcel IGCSE Biology 2.67 coronary heart disease risk factors

An answer that makes reference to two of the following points:

- obesity / eq

- diabetes

- high (saturated) fat diet / high cholesterol / eq

- high salt diet / eq

- low exercise / eq

- smoking / alcohol

- stress / eq

- age

An answer that makes reference to four of the following points:

- increasing blood pressure increases deaths / eq

- Northern / Eastern Europe have a steep / big increase (as blood pressure increases) / Japan has less / low increase / steady increase (as blood pressure increases) / eq

- Japan has lowest number of deaths (at all blood pressures) / Northern / Eastern Europe has highest / Japan has lower death rate / eq

- (Northern / Eastern) Europe has more deaths (compared with Japan) when blood pressure is healthy / below 130 / eq

- decrease in number of deaths in Eastern Europe from 120 to 130 a.u. / at 130 / eq

- Japan may have lower death rates due to genetics / heredity / eq

- people in Japan may have better diet / healthy lifestyle / more exercise / less stress / less smoking / less obesity (so reduces deaths or heart disease) / eq

- no idea of sample sizes / no record of other factors / age / sex / lifestyle / diet / exercise / smoking / data / eq

Allow increased blood pressure has less effect in Japan

Allow converse for Japan

Allow anomaly at 130 a.u.

Allow converse for Europe

Allow different regions may have different genetic factors

Allow converse for Europe

Allow different regions may have different diets / stress / smoking / eq

Allow data not at same blood pressures for each country