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Past Papers | Epidemiology And Bio-Statistic | Cmt Nta 4 | Clinical Medicine First Year
Circle the most correct answer among the given alternative answers (10)
1. Epidemiology is:
a. Study the distribution and determinants of health related events in specified population
b. Study of distribution and determinants of infectious diseases only
c. Limited to deaths and their causes in a particular population at a given period of time
d. Study of non-communicable diseases and the associated risks in a given community
2. The following are advantages of using graphs except:
a. Simplifies the information
b. Complicates the information
c. Gives a memorable visual image
d. Enables to show the complex relationship
3. Ratio:
a. Numerator must be larger than denominator
b. Must be expressed in percentage
c. Numerator is not a part of denominator
d. Numerator is a part of denominator
4. Prevalence of a certain health event may increase due the following factors except:
a. Prolongation of life of patients without cure
b. Longer duration of the disease
c. High case – fatality rate from the disease
d. Increase in incidence
5. About Sample Surveys
a. it covers the whole population
b. No sampling is involved
c. Only a sample of the population is involved
d. it must have a legal basis to make it complete and compulsory
Section B: TRUE/FALSE questions
Write the word TRUE for the true statement and the word FALSE for the false statement (25 )
1. The following events may be reported under qualitative Variables
a…………….. Number of death due to malaria
b………………Outcome of disease e.g. recovery, death
c………………Hair color e.g. . black, blonde, grey
d………………Marital status
e…………….. Gender
2. About quantitative Variables
a…………….. Take numerical value
b……………… May be either continuous or discrete
c……………… Data on measles cases
d……………… Body weight of individuals
e…………….. Number of AIDS cases
3. The following are the measures of central tendency
a…………….. Mean
b……………… Mode
c……………… Median
d……………… Standard deviation
e…………….. Variance
4. The following are Characteristics of a Normal Distribution Curve a……………..is specified by two parameters: the population range and the standard deviation
b……….... is unsymmetrical around the mean, bell-shaped, and Unimodal
c…………… the mean, median, and mode are not in the middle of the curve
d……………the total area under the curve above the x-axis is one square unit with 0.75 area to the right of the mean and 0.25 to the left of the mean
e……………the area bounded by two standard deviations to the right and two to the left will represents approximately 95% of the values
5. Prevalence Rates
a…………………...Measure of the risk of developing a disease/condition within a specified time period.
b………………….. The number of new cases per population in a given time period
c…………………. the total number of existing cases among the entire population.
d…………………. can be measured at an instant time
e. ………………… measures the number of deaths within a designated population of people with a particular disease, over a specified period of time.
SECTION C: Short answer questions (35 )
1. Provide an example of determinants/factors influencing disease that is related to host (10 )
2. Differentiate the term Incidence rate from Prevalence rate (10 )
3. The following are number of malaria cases reported from Ijumbi Health centre from January to December, 2012
Month | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Confirmed malaria cases | 50 | 46 | 60 | 850 | 55 | 45 | 60 | 45 | 56 | 900 | 54 | 45 |
A. Find mean; mode and median (show the way clearly)
B. What measure of central tendency will you use between mean and median when presetting malaria cases and why? (15 )
Section D: Essay questions (30)
1. Kaigara Health Centre serves a population of about 10,000 people in its catchment area. The health facility provides both curative and maternal and child health care services. The basic information of those attending the outpatient department is summarized in the registers below:
Note: Count diarrhoea and severe diarrhoea as “diarrhoea
This table contains an Extract from the register of Kaigara Health Centre, new cases received from 6 to 10th May 2012.
i. Using data from Kaigara H.C Register, show the distribution of patients by disease or syndrome and the proportion of each disease/syndrome (the table should consist four column has shown below)
S/no | Disease/syndrome | Frequency | Proportion |
ii. What are the top 5 disease conditions by proportion recorded in Kaigara Health Centre?
iii. Draw a bar graph to display the top 5 disease conditions by number of cases.
iv. Which group of patients are seen most often
v. Summarize the distribution of Malaria patients by village
vi. What conclusion can you make from the table you have prepared above (v) about the patents and villages where they live?
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