Nokea
The hallmark feature of an analytic epidemiologic study is:
- A. Use of an appropriate comparison group
- B. Laboratory confirmation of the diagnosis
- C. Publication in a peer-reviewed journal
- D. Statistical analysis using logistic regression
Correct Answer: A
Rationale: The key feature of analytic studies is the use of a comparison group to assess associations.
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The true regarding chi square test:
- A. Null hypothesis is equal
- B. Does not test the significance
- C. Tests correlation and regression
- D. Measures the significance of difference between two proportions
Correct Answer: D
Rationale: Chi-square tests assess differences between observed and expected frequencies.
Hottest year was
- A. 2001
- B. 2002
- C. 2003
- D. 2004
Correct Answer: C
Rationale: The year 2003 was recorded as one of the hottest years globally due to climate change impacts.
Why does the line for domestic animals diverge from that of wild animals?
- A. Domestic animals received more vaccinations.
- B. Wild animals are less exposed to humans.
- C. Climate change affected wild animals.
- D. Urbanization reduced domestic animal exposure.
Correct Answer: A
Rationale: Vaccination campaigns targeted domestic animals, reducing their rabies incidence compared to wild animals.
Population doubling time is
- A. Growth rate(GR%)/70
- B. 70/GR%
- C. 60/GR%
- D. GR%/60
Correct Answer: B
Rationale: Population doubling time is calculated using the formula 70/GR%, where GR% is the annual growth rate expressed as a percentage.
Estimate how likely it would be for a similar epidemic of plague to develop during the current decade.
- A. Unlikely due to modern sanitation and antibiotics.
- B. Likely due to increased travel.
- C. Likely due to climate change.
- D. Unlikely due to genetic immunity.
Correct Answer: A
Rationale: Modern healthcare, sanitation, and antibiotics significantly reduce the likelihood of a plague epidemic.