Question 14 · LDEK · Characteristics of scientific studies
Although the most important American baseball league - Major League Baseball - strives to ban players from chewing tobacco, most of them continue to do it. A team of researches wants to determine the relation between tobacco chewing and the occurrence of contact mucositis of the oral cavity among players. At a training camp they ask players about their tobacco chewing, smoking and alcohol drinking. They also estimate the condition of the players’ oral cavity mucosa. Which of the following the researches carry out?
- A. case-control study.
- B. case study.
- C. cohort retrospective study.
- D. cohort prospective study.
- E. cross-sectional study.
Hint
Exposure and outcome are assessed in the same people at a single point in time, without any follow-up.
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