Question 70 (part 2) · LEK · Characteristics of scientific studies
The results of a study have shown that the incidence rate for chronic bronchitis is 2 times higher in the bakery workers group than in teachers. All the participants were men of a similar age. The conclusion presented comes from the following type of epidemiological study:
- A. cross-sectional.
- B. case-control.
- C. ecological.
- D. cohort.
- E. experimental.
Hint
The result is expressed as incidence rates in groups defined by occupational exposure.
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