Which of the following is not a risk factor for lung disease?
The table shows the percentage of smokers, males and females, in 2000 and in 2016 (according to the World Health Organization, 2016).
Describe the trend shown.
What might have been the reasons for this change?
The table provided shows how the number of lung-cancer-related deaths changes with the number of cigarettes smoked per day.
What is the trend shown by this data?