Studies in the epidemiology of appendicitis have s

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Epidemiologic Question Questions

Question 1 of 5

Studies in the epidemiology of appendicitis have shown that

A. it affects girls nearly three times as frequently as boys B. its incidence is highest in the sixth and seventh decades of life C. its incidence is decreasing in the Western world D. its mortality is increasing in the Western world

Correct Answer: C

Rationale: Incidence is decreasing in the West (e.g., due to fiber intake). A is false (males slightly higher). B is wrong (peak is teens). D is false (mortality down). E is off (rarer, ~1/1,500 in pregnancy).

Question 2 of 5

Compared with the general population, all the following patients are at an increased risk of cobalamin (B12) deficiency EXCEPT

A. a 40-year-old man with a history of ingestion of lye at age 20 B. a 20-year-old woman with a history of Graves' disease C. a 60-year-old man with a brother with pernicious anemia D. a 70-year-old woman with a nematodal infection

Correct Answer: B

Rationale: Graves’ doesn’t affect B12; others do (e.g., malabsorption, genetics).

Question 3 of 5

Studies of the epidemiology of cutaneous drug reactions have shown which of the following?

A. The incidence of cutaneous drug reactions is highest in the elderly B. Urticaria is the most common skin manifestation C. Cutaneous drug reactions usually occur about 2 to 3 weeks following initial exposure D. The most common drugs involved are antihypertensive medications

Correct Answer: A

Rationale: Elderly have higher rates due to polypharmacy; B (rashes vary), C (timing varies), D (antibiotics lead) false.

Question 4 of 5

All the following statements about the relationship between marital status and cancer are true EXCEPT

A. the risk of cancer of the cervix is higher in married women compared with single women B. the risk of cancer of the cervix is lower in women who marry late in life than in women who marry earlier C. the risk of breast cancer is higher in single than in married women D. the risk of cancer of the testes is higher in married than in single men

Correct Answer: D

Rationale: Testicular cancer isn’t higher in married men; others align with data.

Question 5 of 5

The use of oral contraceptives increases the risk of

A. breast cancer B. vaginal cancer C. osteoporosis D. thromboembolism

Correct Answer: D

Rationale: OCPs increase thromboembolism risk; A (mixed), B (no), C (protective) false.

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Studies in the epidemiology of appendicitis have shown that

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Epidemiologic Question Questions

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