close solutoin list

Smoking and Lung Function Data from the Coronary Artery Risk Development in Young Adults (CARDIA) study was used to assess the effects of smoking on lung function. In 1985--86, the study enrolled about 5,000 people aged 18 to 30 years old in a long term study. Over the next 20 years, study subjects were periodically asked about their habits and their health, including their lung function, was assessed. FIGURE 38.19 is a model based on data from this study, of how lifetime tobacco and marijuana use affects forced expiration. FIGURE 38.19 Associations between marijuana or tobacco smoking and the change in forced expiration volume (FEV) . One joint-year means an average of one joint smoked daily for one year. One pack-year is an average of one pack smoked per day for one year. Dots at the top of the graph show the distribution of observations. Lines below show the modeled association. Blue is marijuana and black is tobacco. The change in FEV 1 is given as milliliters of air. Based on this model, how would smoking two packs of cigarettes a day for 20 years (40 pack-years or exposure) affect FEV 1 ? What level of marijuana smoking would produce an equivalent effect?

BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

Solutions

Chapter
Section
Chapter 38, Problem 2DAA
Textbook Problem

Smoking and Lung Function Data from the Coronary Artery Risk Development in Young Adults (CARDIA) study was used to assess the effects of smoking on lung function. In 1985--86, the study enrolled about 5,000 people aged 18 to 30 years old in a long term study. Over the next 20 years, study subjects were periodically asked about their habits and their health, including their lung function, was assessed. FIGURE 38.19 is a model based on data from this study, of how lifetime tobacco and marijuana use affects forced expiration.

Chapter 38, Problem 2DAA, Smoking and Lung Function Data from the Coronary Artery Risk Development in Young Adults (CARDIA)

FIGURE 38.19 Associations between marijuana or tobacco smoking and the change in forced expiration volume (FEV). One joint-year means an average of one joint smoked daily for one year. One pack-year is an average of one pack smoked per day for one year. Dots at the top of the graph show the distribution of observations. Lines below show the modeled association. Blue is marijuana and black is tobacco. The change in FEV1 is given as milliliters of air.

Based on this model, how would smoking two packs of cigarettes a day for 20 years (40 pack-years or exposure) affect FEV1? What level of marijuana smoking would produce an equivalent effect?

Expert Solution

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

See Solution

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.

Additional Science Textbook Solutions

Find more solutions based on key concepts
Show solutions
Taking supplements of fish oil is recommended for those who don't like fish. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What are the chemical differences between DNA and RNA?

Biology: The Dynamic Science (MindTap Course List)

What evidence can you give that the corona has a very high temperature?

Horizons: Exploring the Universe (MindTap Course List)

An underground gasoline lank can hold 1.00 103 gallons of gasoline at 52.0F. Suppose the tank is being filled o...

Physics for Scientists and Engineers, Technology Update (No access codes included)

Which is the largest marine community?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin