(Single Best Answer) Question 51: A chest physician observed that the distribution of forced expiratory volume (FEV) in 300 smokers had a median value of 2.5 litres with the first and third quartiles being 1.5 and 4.5 litres respectively. Based on this data how many persons in the sample are expected to have a FEV between 1.5 and 4.5 litres ?
A) 75 B) 150 C) 225 D) 300 Answer (Select an option above to get the answer):
(Single Best Answer) Question 52: The distribution of random blood glucose measurements from 50 first year medical students was found to have a mean of 3.0 mmol/litre with a standard deviation of 3.0 mmol/litre. Which of the following is a correct statement about the shape of the distribution of random blood glucose in these first year medical students ?
A) Since both mean and standard deviation are equal, it should be a symmetric distribution B) The distribution is likely to be positively skewed C) The distribution is likely to be negatively skewed D) Nothing can be said conclusively Answer (Select an option above to get the answer):
(Single Best Answer) Question 53: In an investigation to study the effect of smoking on renal cell cancer, it is observed that 30 of the 50 patients were smokers as compared to 10 out of 50 control subjects. The odds ratio of renal cancer associated with smoking will be ?
A) 3.0 B) 0.33 C) 6.0 D) 0.16 Answer (Select an option above to get the answer):
(Single Best Answer) Question 54: According to a joint study â??Healthcare In India : The Road Aheadâ?? done by CII and MekinSey and Company in 2002, Indiaâ??s executing bed population rated is ?
A) 2 : 1000 B) 1.5 : 1000 C) 9 : 1000 D) 2.5 : 1000 Answer (Select an option above to get the answer):
A) Acute malnutrition B) Chronic malnutrition C) Concomittant acute and chronic malnutrition D) Under weight Answer (Select an option above to get the answer):
A) Measles virus survives outside the human body for 5 days B) Carriers are important sources of infection C) Secondary attack rate is less than that of rubella D) Incidence of measles is more in males than females Answer (Select an option above to get the answer):
(Single Best Answer) Question 57: All of the following statements are true about the childhood mortality rates in India except ?
A) Almost 3/5th of infant mortality rate (IMR) occurs in neonatal period B) Almost 3/4th of the under-five mortality occurs in the first year of life C) About one in ten children die before they reach the age of five years D) Neonatal mortality is higher among female children as compared to males Answer (Select an option above to get the answer):
(Single Best Answer) Question 58: If the objective of the investigator is to assess the incidence of tuberculosis infection in a community, the most appropriate methodology would be to ?
A) Identify all individuals with positive tuberculin test B) Perform sputum examination of chest symptomatics C) Identify new converters to Tuberculin test D) Screen all under-five children with Tuberculin test Answer (Select an option above to get the answer):
(Single Best Answer) Question 59: Of the different epidemiological study designs available to test the association between risk factor and disease, the best design is of ?
A) Case - control study B) Ecological study C) Cohort study D) Cross - sectional study Answer (Select an option above to get the answer):
In a study 400 smokers and 600 non-smokers were followed up over a period of 10 years to find out the incidence of hypertension. The following table summarizes the data at the end of the study :
Hypertension
Yes
No
Total
Smoking
Yes
120
280
400
No
30
570
600
Total
150
850
1000
The risk ratio in this study is ?
A) 0.06 B) 0.60 C) 6.0 D) 60.0 Answer (Select an option above to get the answer):