(Single Best Answer) Question 71: A total 5000 patients of glaucoma are identified and surveyed by patient interviews regarding family history of glaucoma. Such a study design is called ?
A) Case series report B) Case-control study C) Clinical Trial D) Cohort study Answer (Select an option above to get the answer):
A) It is synonymous with isolation B) Absolute quarantine is restriction during the incubation period C) Excusion of children from schools is an example of modified quarantine D) Quarantine should not be longer than the longest incubation period Answer (Select an option above to get the answer):
A) It is a definitive host in malaria B) It is a definitive host in filaria C) Its life cycle is completed in 3 weeks D) The female can travel upto 3 kilometers Answer (Select an option above to get the answer):
A) India has eradicated this disease B) Niridazole prevents transmission of the disease C) The disease is limited to tropical and subtropical regions D) No animal reservoir has been proved Answer (Select an option above to get the answer):
(Single Best Answer) Question 76: To test the association between risk factor and disease, which of the following is the weakest study design ?
A) Case - control study B) Ecological study C) Cohort study D) Cross - sectional study Answer (Select an option above to get the answer):
(Single Best Answer) Question 77: As compared to a routine case control study, nested case control study avoids problems (in study design) related to ?
A) Temporal association B) Confounding bias C) Need for long follow up D) Randomization Answer (Select an option above to get the answer):