Strengths and limitations of cohort studies — Flashcards

Flashcard 1: _____ studies are observational studies that compares groups with a given exposure or risk factor to a group without such exposure

Answer: Cohort

Flashcard 2: Are cohort studies useful for measuring incidence and/or prevalence? _____

Answer: Incidence

Flashcard 3: What kind of study compares a group with an exposure to another group without an exposure and looks for differences in disease outcomes between the two groups.

Answer: Cohort study

Flashcard 4: Explain how a cohort study works.

Answer: Compares a group with an exposure to another group without an exposure and looks for differences in disease outcomes between the two groups.

Flashcard 5: What is the unit for measuring outcomes in a cohort study?

Answer: relative risk (RR)

Flashcard 6: Lung cancer risk is directly related to the duration and the amount of smoking, which is measured in '_____'

Answer: pack-years

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/lung-cancer?index=2] https://onlinemeded.org/spa/pulmonology/lung-cancer/acquire?ref=anki 

Flashcard 7: The Case Fatality Rate = (_____) / (# of individuals with disease at t0)

Answer: # of individuals who die from disease during T0->T+1

Extra:  https://onlinemeded.org?ref=anki 

Flashcard 8: What is the equation for attributable risk percent in the exposed (ARPexposed)? _____

Answer: ARPexposed = 100 x [(RR-1)/RR]

Extra: Watch associated Bootcamp video [https://app.bootcamp.com/med-school/biostatistics/videos/risk-quantification?index=10] https://onlinemeded.org?ref=anki 

Flashcard 9: Construct a 2x2 table and calculate the risk ratio _____

Answer:

Extra:  https://onlinemeded.org/spa/epidemiology-and-stats/risk/acquire?ref=anki 

Flashcard 10: If 21% of smokers develop lung cancer versus only 1% of nonsmokers, the attributable risk = _____

Answer: 20