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Which of the following may be connected to sample or sample size in relation to public health? * I. Sample is a fraction of the population of interest II. Sample must have the same characteristics as the population to arrive at a correct inference II. In sampling, collection of relatively large entities or objects are observed IV. Exclusion of eligible participant is only applicable in population selection I and II I only I, Il and III O 1, I, II and IV

Which of the following may be connected to sample or sample size in relation to public health? * I. Sample is a fraction of the population of interest II. Sample must have the same characteristics as the population to arrive at a correct inference II. In sampling, collection of relatively large entities or objects are observed IV. Exclusion of eligible participant is only applicable in population selection I and II I only I, Il and III O 1, I, II and IV

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Which of the following may be connected to sample or sample size in relation to public health? * I. Sample is a fraction of the population of interest II. Sample must have the same characteristics as the population to arrive at a correct inference II. In sampling, collection of relatively large entities or objects are observed IV. Exclusion of eligible participant is only applicable in population selection I and II I only I, Il and III O I, I, II and IV Refer to the given case below. How many independent variables were studied in the given case? * Traveler's diarrhea (TD) is the most frequent disease among people from industrialized countries who travel to less developed ones, especially sub-Saharan Africa, Southern Asia and South America. The most common bacteria causing TD is enterotoxigenic Escherichia coli (ETEC). The WC/rBS cholera vaccine (Dukoral) has been shown to induce cross-protection against ETEC by means of the B subunit of the cholera toxin. The aim of the study was to evaluate the effectiveness of the WC/rBS cholera vaccine in preventing TD. The vaccinated group (n = 544 travelers) included people vaccinated with the WC/rBS cholera vaccine, and the non-vaccinated group (n = 530 travelers) by people not vaccinated. The cumulative incidence rate of TD was 1.69 in vaccinated and 2.14 in non- vaccinated subjects. The adjusted relative risk of TD in vaccinated travelers was 0.72 (95% Cl: 0.58- 0.88) and the adjusted vaccination effectiveness was 28% (95% CI: 12-42). O 1 No independent variable present 2 3
Transcribed Image Text:Which of the following may be connected to sample or sample size in relation to public health? * I. Sample is a fraction of the population of interest II. Sample must have the same characteristics as the population to arrive at a correct inference II. In sampling, collection of relatively large entities or objects are observed IV. Exclusion of eligible participant is only applicable in population selection I and II I only I, Il and III O I, I, II and IV Refer to the given case below. How many independent variables were studied in the given case? * Traveler's diarrhea (TD) is the most frequent disease among people from industrialized countries who travel to less developed ones, especially sub-Saharan Africa, Southern Asia and South America. The most common bacteria causing TD is enterotoxigenic Escherichia coli (ETEC). The WC/rBS cholera vaccine (Dukoral) has been shown to induce cross-protection against ETEC by means of the B subunit of the cholera toxin. The aim of the study was to evaluate the effectiveness of the WC/rBS cholera vaccine in preventing TD. The vaccinated group (n = 544 travelers) included people vaccinated with the WC/rBS cholera vaccine, and the non-vaccinated group (n = 530 travelers) by people not vaccinated. The cumulative incidence rate of TD was 1.69 in vaccinated and 2.14 in non- vaccinated subjects. The adjusted relative risk of TD in vaccinated travelers was 0.72 (95% Cl: 0.58- 0.88) and the adjusted vaccination effectiveness was 28% (95% CI: 12-42). O 1 No independent variable present 2 3
Refer to the given case below. What was the dependent variable in the given case? * Traveler's diarrhea (TD) is the most frequent disease among people from industrialized countries who travel to less developed ones, especialy sub-Saharan Africa, Southern Asia and South America. The most common bacteria causing TD is enterotoxigenic Escherichia coli (ETEC). The WC/rBS cholera vaccine (Dukoral) has been shown to induce cross-protection against ETEC by means of the B subunit of the cholera toxin. The aim of the study was to evaluate the effectiveness of the WC/rBS cholera vaccine in preventing TD. The vaccinated group (n = 544 travelers) included people vaccinated with the WC/rBS cholera vaccine, and the non-vaccinated group (n = 530 travelers) by people not vaccinated. The cumulative incidence rate of TD was 1.69 in vaccinated and 2.14 in non- vaccinated subjects. The adjusted relative risk of TD in vaccinated travelers was 0.72 (95% CI: 0.58- 0.88) and the adjusted vaccination effectiveness was 28% (95% CI: 12-42). Occurrence of traveler's diarrhea Industrialized country using Dukoral ETEC infection wc/rBS cholera vaccination status Which among the following statements about the different types of variables are correct? " I. Independent variables always have an effect on dependent variables II. Covariates have an effect on dependent variables II. The dependent variables are the variables being manipulated IV. Independent variables explain the presumed effect to X variables Only one of the statements is correct O Two of the statements are correct O All of the statements are correct O Three of the statements are correct
Transcribed Image Text:Refer to the given case below. What was the dependent variable in the given case? * Traveler's diarrhea (TD) is the most frequent disease among people from industrialized countries who travel to less developed ones, especialy sub-Saharan Africa, Southern Asia and South America. The most common bacteria causing TD is enterotoxigenic Escherichia coli (ETEC). The WC/rBS cholera vaccine (Dukoral) has been shown to induce cross-protection against ETEC by means of the B subunit of the cholera toxin. The aim of the study was to evaluate the effectiveness of the WC/rBS cholera vaccine in preventing TD. The vaccinated group (n = 544 travelers) included people vaccinated with the WC/rBS cholera vaccine, and the non-vaccinated group (n = 530 travelers) by people not vaccinated. The cumulative incidence rate of TD was 1.69 in vaccinated and 2.14 in non- vaccinated subjects. The adjusted relative risk of TD in vaccinated travelers was 0.72 (95% CI: 0.58- 0.88) and the adjusted vaccination effectiveness was 28% (95% CI: 12-42). Occurrence of traveler's diarrhea Industrialized country using Dukoral ETEC infection wc/rBS cholera vaccination status Which among the following statements about the different types of variables are correct? " I. Independent variables always have an effect on dependent variables II. Covariates have an effect on dependent variables II. The dependent variables are the variables being manipulated IV. Independent variables explain the presumed effect to X variables Only one of the statements is correct O Two of the statements are correct O All of the statements are correct O Three of the statements are correct
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