Question

“As of September 24, 2019, 46 state health departments had reported 805 patients with cases of lung injury associated with use of e-cigarette, or vaping, products to CDC. Sixty-nine percent of patients were males, and the median age was 23 years (range = 13–72 years). To date, 12 deaths have been confirmed in 10 states. Among 514 patients with information on substances used in e-cigarettes, or vaping products, in the 30 days preceding symptom onset, 76.9% reported using THC-containing products, and 56.8% reported using nicotine-containing products; 36.0% reported exclusive use of THC-containing products, and 16.0% reported exclusive use of nicotine-containing products. The specific chemical exposure(s) causing the outbreak is currently unknown. While this investigation is ongoing, CDC recommends that persons consider refraining from using e-cigarette, or vaping, products, particularly those containing THC. CDC will continue to work in collaboration with FDA and state and local partners to investigate cases and advise and alert the public on the investigation as additional information becomes available.”

1. How many patients were reported with lung injuries? 805

2. How many of those patients were males (numbers not percentage, and round to whole number)?_______ How many were females? _______

3. How many patients were younger than 23 years? _______ Older than 23 years?_______

4. What age was the youngest smoker? 13 Oldest smoker? 72

5. What percentage of states in the USA reported patients with lung injuries?_______

6. What percentage of states in the USA included a death?_______

7. What percentage of patients reported information on the substances they used in their e-cig (round to nearest whole number)?_______

8. Draw a graph comparing the percentages of patients using THC-containing products, Nicotine- containing products, exclusive THC products, and exclusive Nicotine products.

Answer 1

How many of those patients were males? = 805*0.69

= 555.45

~ 555

How many were females? = 805-555

= 250

How many patients were younger than 23 years? = 0.5*805

= 402.5

~ 403

Older than 23 years? = 805-403

= 402

What percentage of states in the USA reported patients with lung injuries? = 46*100/50

= 92%

What percentage of states in the USA included a death? = 10*100/50

= 20%

What percentage of patients reported information on the substances they used in their e-cig (round to nearest whole number)? = 514*100/805

= 63.85%

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