A diagnostic test for a particular disease has a sensitivity of 0.90 and a specificity of 0.80. A single test is applied to each subject in the population
A randomized trial comparing efficacy of two regimens showed that difference is statistically significant with p< 0.001 but in reality the two drugs do not differ in their
All of the following indicators are included in Physical Quality of Life Index (PQLI) except: a) Infant mortality rate b) Life expectancy at age one c) Literacy rate
The highest percentages of polyunsaturated fatty acids are present in: a) Groundnut oil b) Soyabean oil c) Margarine d) Palm oil Correct answer : b) Soyabean oil
Vitamin A deficiency is considered a public health problem if prevalence rate of night blindness in children between 6 months to 6 years is more than: a) 0.01%
Which of the following is an example of Disability limitation? a) Reducing occurrence of polio by immunization b) Arranging for schooling of child suffering from PRPP c) Resting
The mechanisms by which cholera might be maintained during the intervals between peak cholera seasons is: a) Carrier status in animals b) Carrier status in man c) An
The following statements are true regarding leptospirosis, except: a) It is zoonosis b) Man is the dead end host c) Man is an accidental host d) Lice act
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