Nokea
Contrast the changes in death rates due to cancer, heart disease, and cerebrovascular diseases.
- A. Heart disease and cancer rates increased initially but stabilized or declined, while cerebrovascular diseases declined steadily.
- B. All three diseases showed consistent declines.
- C. Cancer rates increased, while heart disease and cerebrovascular diseases decreased.
- D. Heart disease rates increased, while cancer and cerebrovascular diseases decreased.
Correct Answer: A
Rationale: Heart disease and cancer initially rose but later stabilized or declined, while cerebrovascular diseases showed steady declines due to improved treatments and risk factor management.
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Identify the type of study design described: A random sample of middle-aged sedentary women was selected from four census tracts, and each subject was examined for evidence of osteoporosis. Those found to have the disease were excluded. All others were randomly assigned to either an exercise group, which followed a two-year program of systematic exercise, or a control group, which had no exercise program. Both groups were observed semiannually for incidence of osteoporosis.
- A. Cohort study
- B. Case-control study
- C. Randomized controlled trial
- D. Ecological study
Correct Answer: C
Rationale: This is a randomized controlled trial evaluating preventive measures.
Cereal protein are deficient in,
- A. Methionine
- B. Lysine
- C. Typtophan
- D. Leucin
Correct Answer: B
Rationale: Cereal proteins are typically deficient in lysine, an essential amino acid.
What type of disease is rabies?
- A. Zoonotic
- B. Non-infectious
- C. Vector-borne
- D. Foodborne
Correct Answer: A
Rationale: Rabies is a zoonotic disease transmitted from animals to humans.
The vector responsible for leishmaniasis is:
- A. mosquito
- B. bugs
- C. tsetse flies
- D. sandflies
Correct Answer: D
Rationale: Sandflies are the vectors responsible for transmitting leishmaniasis.
validity stands for.
- A. accuracy
- B. reliability
- C. consistency
- D. all
Correct Answer: A
Rationale: Validity refers to how accurately a method measures what it is intended to measure.