Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

Compute the proportion of lung cancer attributable to smoking.

Doll As well as Hill first evaluated the proposition that smoking was a risk factor for lung cancer in a case-control study (Doll and Hill, 1950). They originate that, of 650 men with lung cancer (cases), 645 had smoked at some time and compared with 625 of the 650 men without lung cancer (control).

a) Draw up a clearly labelled as well as appropriate 2 x 2 table to show these data.

b) How many times more probable was a smoker to develop lung cancer than a non-smoker?

c) Compute the proportion of lung cancers attributable to smoking among i) smokers and ii) the whole population.

d) What are these measures called as well as how does their interpretation differ?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M916619

Have any Question? 


Related Questions in Biology

Some boxers and wrestlers dehydrate abruptly by spending

Some boxers and wrestlers dehydrate abruptly by spending time in a sauna and sweating a lot in order to lose weight and compete with a lower tier, however this is a serious health hazard, explain what happens to the toni ...

Explain how the decline in genetic diversity with distance

Explain how the decline in genetic diversity with distance from Africa supports the Out of Africa hypotheses.

Which phylloclade commonly found in xerophytic plants that

Which phylloclade commonly found in xerophytic plants that is modified?

Provide answers to the following in essay forma identify

Provide answers to the following in essay form. a) Identify three different general types of fossil fuels. b) Identify and discuss environmental problems that are associated with using these fossil fuels. c) Identify 3 t ...

What is the state of the issue of genome engineering

What is the state of the issue of Genome engineering technology in Sweden? Are there laws governing the it? Is there a high level of controversy in Sweden over the ethical issues of Genome engineering technology? Why/why ...

What characteristics of sahelanthropus tchadenssis exclude

What characteristics of Sahelanthropus tchadenssis exclude it from being considered human?

How does the presence of nitrate phosphate and ammonium

How does the presence of nitrate + phosphate and ammonium ions affect fertilization?

Biology questions1 what were the characteristics of the pea

Biology questions 1. What were the characteristics of the Pea plant that enabled Mendel to do his experiments? 2. How does probability and chance play an important role in genetics? 3. Explain the difference between gene ...

The primary goal of the reproductive system is the

The primary goal of the reproductive system is the production of a new human being. Let's consider each step of that process, beginning with the formation of gametes (sperm and eggs) and ending with birth. Can someone st ...

Blame for commercial overexploitation can be placed on the

Blame for commercial overexploitation can be placed on the people who directly do the exploiting and those that buy the product - but which group deserves more of the the blame? Why? What is an example of a commercial re ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen