493.In a study in UK ,an association was found between sale of antiarryhthmic drug and an increase in death due to asthma .This is an example of

a.Ecological study
b.Cohort study
c.Case reference study
d.Experimental study
Ans-a.Ecological study

438.Denominator while calculating the secondary attack rate Includes:

 

a. All the people living in next fifty houses

b. All the close contacts

c. All susceptible amongst close contact

d. All susceptible in the whole village

437. The Vipeholm study revealed the effect of various diet factors on dental decay? The occurrence of dental caries is most dependent on which factors

a. Amount and form of diet

b. Form and Frequency of diet
c. Amount and Frequency of diet
d. All of the above

436. The proportion of a population affected with a disease at a given point in time, i.e., (cases)/(population) refers to as

a. Incidence b. Prevalence

c. Sensitivity d. Specificity

220.Shoe leather survey was conducted in

a.Japan
b.USA
c.France
d.Germany

Ans:b.USA

36.The first dental college in India was started in Calcutta by Dr. Rafiuddin Ahmed in:

1. 1930 2. 1925
3. 1920 4. 1915

ANS.3 ref Soben Peter-12


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