Nokea
Mortality experience is taken into consideration when defining
- A. General fertility rate
- B. Total fertility rate
- C. Net reproduction rate
- D. Gross reproduction rate
Correct Answer: C
Rationale: Net Reproduction Rate (NRR) considers mortality experience, as it reflects the average number of daughters a woman would have if she survived through her reproductive years.
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Median is almost equivalent to
- A. 25th percentile
- B. 50th percentile
- C. 75th percentile
- D. 10th percentile
Correct Answer: B
Rationale: The median corresponds to the 50th percentile, dividing the dataset into halves.
Vaccine that should be kept in freezer are
- A. Polio, DPT, measles
- B. Polio measles BCG
- C. BCG DPT measles
- D. BCG DPT and polio
Correct Answer: A
Rationale: Polio vaccines must be stored frozen to maintain their efficacy; other vaccines like DPT and measles require refrigeration but not freezing.
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.
What does routine analysis of notifiable disease data at the state level include?
- A. Number of cases reported this week and during the previous 2-4 weeks.
- B. Number of cases reported this week and during comparable weeks of the previous 2-5 years.
- C. Simultaneous analysis by age, race, and sex of the patient.
- D. Analysis by county.
Correct Answer: D
Rationale: County-level analysis helps localize outbreaks or regional differences in disease burden.
Calculate the percentage decline in the death rate for all causes. What generalizations can be made about changes in disease rates between 1900 and the present?
- A. Death rates declined significantly due to advancements in healthcare.
- B. Death rates increased due to population growth.
- C. Death rates remained constant despite medical advancements.
- D. Death rates fluctuated without clear trends.
Correct Answer: A
Rationale: Death rates have declined significantly since 1900 due to improvements in healthcare, sanitation, and living conditions.