What is the RR of dying of coronary thrombosis for smokers versus nonsmokers?
- A. 1.2
- B. 1.3
- C. 1.4
- D. 1.5
Correct Answer: C
Rationale: RR = (Death rate among smokers / Death rate among nonsmokers) = 599 / 422 ≈ 1.42. Smokers have a 1.42 times higher risk of dying from coronary thrombosis compared to nonsmokers.
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Milk secretion in breast of mother is influenced by mother's
- A. Nutritional status states
- B. Physiological state
- C. Hormonal state
- D. All of the above
Correct Answer: D
Rationale: Milk secretion is influenced by a combination of nutritional, physiological, and hormonal factors.
What methodologic difficulties exist with respect to investigations of the health effects of these forms of radiation?
- A. Difficulty measuring exposure levels accurately.
- B. Lack of available funding for research.
- C. Public resistance to participation in studies.
- D. Overabundance of conclusive evidence.
Correct Answer: A
Rationale: Accurately quantifying exposure to EMFs and ionizing radiation poses significant challenges due to variability and complexity.
Does notifiable disease surveillance focus on both morbidity and mortality?
- A. True.
- B. FALSE
Correct Answer: A
Rationale: Notifiable disease surveillance typically covers both morbidity and mortality related to the listed diseases.
Health education on early diagnosis and treatment is
- A. primary prevention
- B. secondary prevention
- C. tertiary prevention
- D. primordial prevention
Correct Answer: B
Rationale: Secondary prevention involves early detection and intervention to halt or slow the progression of disease.
when research topic is not novel and relevant:
- A. correct it
- B. change it
- C. read more about it
- D. review articles
Correct Answer: B
Rationale: If a research topic lacks novelty and relevance, changing it is advisable.