Nokea
Which of the following is the best indicator of health status of a community?
- A. Birth rate
- B. Infant mortality rate
- C. Crude death rate
- D. None of the above
Correct Answer: B
Rationale: Infant Mortality Rate (IMR) is widely regarded as a sensitive indicator of the health status of a community, reflecting access to healthcare, nutrition, and living conditions.
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The geometric mean is the value that:
- A. Is midway between the lowest and highest value on a log scale
- B. Occurs most often on a log scale
- C. Has half the observations below it and half above it on a log scale
- D. Is statistically closest to all of the values in the distribution on a log scale
Correct Answer: A
Rationale: Geometric mean finds the central tendency for a set of numbers by using the product of their values.
PNMR refers to:
- A. post Neonatal mortality rate
- B. post natal mortality rate
- C. perinatal mortality rate
- D. prenatal mortality rate
Correct Answer: A
Rationale: Post-neonatal mortality rate refers to deaths occurring between 28 days and one year of age.
30 babies were born in hospital, 10 were less than 2.5 kg and 20 were greater than 2.5 kg the average is
- A. Arithmetic mean
- B. Median
- C. Geometric mean
- D. Mode
Correct Answer: B
Rationale: The median divides the data into two equal parts, making it suitable here.
Which of the following is unrelated to the chi square test of significance?
- A. Degree of freedom
- B. Life table
- C. Significance level
- D. Qualitative data
Correct Answer: B
Rationale: Life tables are not directly related to chi-square tests, which assess qualitative data associations.
A case definition during an outbreak investigation should specify:
- A. Clinical features
- B. Time
- C. Place
- D. Person
Correct Answer: A
Rationale: A good case definition includes clinical criteria and details on time, place, and person to ensure consistent identification of cases.