Gas exchange

Question 1

In a study of Chronic Obstructive Pulmonary Disorder (COPD) within a large population, the following statistics were reported:

78% of all individuals who develop COPD are, or have been, smokers.
$920,000\,$ people have been formally diagnosed with COPD.
It is estimated that an additional $1,500,000\,$ people have COPD but remain undiagnosed.

Calculate the total number of people in this population who are estimated to have COPD (both diagnosed and undiagnosed) and are, or have been, smokers. Show your working.

[2]

Gas exchange

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Question 1

In a study of Chronic Obstructive Pulmonary Disorder (COPD) within a large population, the following statistics were reported:

78% of all individuals who develop COPD are, or have been, smokers.
$920,000\,$ people have been formally diagnosed with COPD.
It is estimated that an additional $1,500,000\,$ people have COPD but remain undiagnosed.

Calculate the total number of people in this population who are estimated to have COPD (both diagnosed and undiagnosed) and are, or have been, smokers. Show your working.

[2]

Gas exchange

Question 1

Gas exchange Questions

Gas exchange

Question 1

Gas exchange Questions