A man joined a 12-month exercise programme.
The Table shows his measurements at the start and at the end of the programme.
Table
| Measurement | At the start | After 12 months |
|---|---|---|
| mass in kg | 112.0 | 98.0 |
| height in m | 1.85 | 1.85 |
| waist circumference in cm | 112 | 99 |
| hip circumference in cm | 106 | 104 |
Calculate the decrease in the man's BMI over the 12 months.
Use the equation BMI=mass in kg(height in m)2\displaystyle \text{BMI} = \frac{\text{mass in kg}}{(\text{height in m})^2}BMI=(height in m)2mass in kg
Give your answer to 1 decimal place.
Calculate the man's waist : hip ratio after 12 months.
Give your answer to 2 decimal places.
A student wrote:
"BMI is not a good measure of this man's health, so only the waist : hip ratio should be used."
Evaluate this statement.
44 exam-style questions on Edexcel GCSE Biology 5.4 Non-communicable diseases, covering 5.4.1 Interaction of factors in non-communicable disease, 5.4.2 Lifestyle factors and non-communicable disease, and 5.4.3 Treatments for cardiovascular disease. Each one has a worked solution and a mark scheme showing where the marks go.