Nokea
The reference protein is
- A. Egg
- B. Milk
- C. Soybean
- D. Meat
Correct Answer: A
Rationale: Egg protein is considered the reference protein due to its high biological value.
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Identify the type of study design described: Fifteen hundred adult men who worked for Lockheed Aircraft were initially examined in 1951 and were classified by diagnostic criteria for coronary artery disease. Every three years they have been reexamined for new cases of the disease; attack rates in different subgroups have been computed annually.
- A. Cohort study
- B. Case-control study
- C. Cross-sectional study
- D. Ecological study
Correct Answer: A
Rationale: This ongoing follow-up represents a cohort study monitoring disease incidence.
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.
In epidemiology, the measure of central location generally preferred for summarizing skewed data such as incubation periods is the:
- A. Mean
- B. Median
- C. Midrange
- D. Mode
Correct Answer: B
Rationale: The median is less affected by outliers and skewed data.
UNFPA established in
- A. 1969
- B. 1954
- C. 1949
- D. 1974
Correct Answer: A
Rationale: The United Nations Population Fund (UNFPA) was established in 1969.
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.