Smoking and lung cancer in study

Reference no: EM131183207

A cohort study to evaluate the effect of smoking on lung cancer (LC) produced the following results:

	LC	No LC
Smokers	178	1129
Non-smokers	79	1262

The distribution of these people by age (less or more than 40 years old) is shown below:

Among younger than 40-years old:

	LC	No LC
Smokers	168	880
Non-smokers	34	177

Among older than 40-years old:

	LC	No LC
Smokers	10	249
Non-smokers	45	1085

Discuss if age is confounding the association between smoking and lung cancer in this study.

Reference no: EM131183207

Questions Cloud

Create a gantt chart that shows the wbs : Countywide Construction At Countywide Construction, you are trying to convince your boss that he should consider modern project management techniques to manage a complex project.

Answer the case study questions : Residence and source Fred, an executive of a British corporation specializing in management consultancy, comes to Australia to set up a branch of his company. - Discuss whether Fred is a resident of Australia for taxation purposes.

Political struggle to pass ppaca : One of the significant challenges for health policy is not necessarily the implementation of programs but the influence of the political climate in regard to both the financial support and control of the programs. Based on your understanding of t..

Design a small-signal voltage amplifier : Design a small-signal voltage amplifier using BJT's that meets the following specifications: 1) Voltage gain of 50 or more 2) Minimum input resistance of 15 k? 3) Output resistance less than 100 ? 4) Maximum unclipped output of 2V peak-to-peak 5) ..

Smoking and lung cancer in study : Discuss if age is confounding the association between smoking and lung cancer in study - A cohort study to evaluate the effect of smoking on lung cancer.

Calculate ecell for the following galvanic cell : Calculate Ecell for the following galvanic cell at 298K. (note: you need the reduction potential list)

Which does not contribute to marginal productivity of worker : Which of the following does NOT contribute to the marginal productivity of workers? All of the following are choices for the polluter when faced with additional costs to abate the externality EXCEPT.

Who is most to blame for the events depicted in the film : Who is most to blame for the events depicted in the film? Were you angered by the events? Why?- List the rationalizations the Bakkers offered (there are many)?

Spectrophotometric analysis of fluoride ion : What role do the stability constants of the various complexes play in the spectrophotometric analysis of fluoride ion using the SPADNS colourimetric method?

User Account

All Pages