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Alcohol consumption has been clearly linked to high blood

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Alcohol consumption has been clearly linked to high blood [#permalink] New post 19 Jul 2011, 23:01
Alcohol consumption has been clearly linked to high blood pressure, which increases the likelihood of developing heart disease. Yet in a study of the effects of alcohol consumption, the incidence of heart disease was lower among participants who drank moderate quantities of alcohol every day than it was among participants identified as nondrinkers.

Which one of the following, if true, most helps to resolve the apparent discrepancy in the information above?

(A) Because many people who do not drink alcohol are conscious of their health habits, they are likely to engage in regular exercise and to eat nutritionally well-balanced meals.
(B) Many of the participants identifies as nondrinkers were people who had been heavy drinkers but had stopped drinking alcohol prior to participating in the study.
(C) Some of the participants who drank moderate quantities of alcohol every day said that they occasionally drank large quantities of alcohol.
(D) Some of the participants who drank moderate quantities of alcohol every day had high blood pressure.
(E) The two groups of participants were similar to each other with respect to the participants’ age, sex, geographical origin, and economic background.
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Re: CR - Alcohol Consumption [#permalink] New post 19 Jul 2011, 23:20
I guess the OA is B. Not sure.

DeeptiM wrote:
Alcohol consumption has been clearly linked to high blood pressure, which increases the likelihood of developing heart disease. Yet in a study of the effects of alcohol consumption, the incidence of heart disease was lower among participants who drank moderate quantities of alcohol every day than it was among participants identified as nondrinkers.

Which one of the following, if true, most helps to resolve the apparent discrepancy in the information above?

Discrepancy: Moderate Drinkers have lower incidence of heart disease than Non Drinkers.

(A) Because many people who do not drink alcohol are conscious of their health habits, they are likely to engage in regular exercise and to eat nutritionally well-balanced meals.
Doesn't solve the discrepancy. Nondrinkers should have lower incidence of heart disease.

(B) Many of the participants identifies as nondrinkers were people who had been heavy drinkers but had stopped drinking alcohol prior to participating in the study.
Solves the discrepancy. Nondrinkers were heavy drinkers before and thats y they have higher incidence of heart disease than moderate ones.

(C) Some of the participants who drank moderate quantities of alcohol every day said that they occasionally drank large quantities of alcohol.
Doesn't solve the discrepancy. Moderate drinkers should have higher incidence of heart disease.

(D) Some of the participants who drank moderate quantities of alcohol every day had high blood pressure.
Doesn't solve the discrepancy. Moderate drinkers should have higher incidence of heart disease.

(E) The two groups of participants were similar to each other with respect to the participants’ age, sex, geographical origin, and economic background.
Doesn't solve the discrepancy. Moderate drinkers should have higher incidence of heart disease.

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Re: CR - Alcohol Consumption [#permalink] New post 19 Jul 2011, 23:25
ooops i misunderstood the question..but then the discrepancy is that "Moderate Drinkers have lower incidence of heart disease than Non Drinkers"

Option B states " nondrinkers were people who had been heavy drinkers but had stopped drinking alcohol "...but then they used to drink heavily earlier right?.. so how can they have lower rate of heart disease..

Am i thinking too much or totally in the wrong direction...pls help!

OA is indeed B!
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Re: CR - Alcohol Consumption [#permalink] New post 20 Jul 2011, 02:08
B for me as well.

According to argument
Premise: Incidence of heart disease is proportional to amount of alcohol.

Paradox: Incidence of heart disease in moderate drinker < Incidence of heart disease in non-drinkers.

B explains the paradox by stating that the many non-drinkers in the study were actually heavy drinkers before .

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Re: CR - Alcohol Consumption [#permalink] New post 20 Jul 2011, 04:08
Has to be B....
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Re: CR - Alcohol Consumption [#permalink] New post 21 Jul 2011, 12:27
B
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Re: CR - Alcohol Consumption [#permalink] New post 19 Aug 2011, 22:11
Although B is clear winner here. I'd like to mention Runner-up as well

Had not been an option, second best would have been the E

(E) The two groups of participants were similar to each other with respect to the participants’ age, sex, geographical origin, and economic background.

Because, Age and Sex are also important factors that determine the likelihood of Heart Diseases among people.
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Re: CR - Alcohol Consumption   [#permalink] 19 Aug 2011, 22:11
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