Questions 14-17 refer to the following information: Researchers carried out a st
ID: 3059089 • Letter: Q
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Questions 14-17 refer to the following information: Researchers carried out a study to assess the association between age and seat belt use. During a two-month period, an interviewer and a road traffic police officer randomly stopped 1400 passenger cars, in 10 sites of randomly selected secondary roads in the Athens, Greece metropolitan area. The policeman stopped the car and the interviewer inspected seat belt availability and use and recorded basic demographic variables, date and time of day or night. The percent of participants who wore seatbelts was 15% in 16-24- year-olds, 18% in 25-34 year olds, 19 % in 35-64-year-olds, and 28% in those 65 years and older. 14. What type of study design is this? (Choose the one best answer) a. ecologic b. case series c. cross-sectional d. case-control e. cohort f. randomized trial 15. Name the appropriate measure of association for this type of study: 16. Calculate the measure of association using those 265 years olds as the "expose" group and those 15-24 years old as the unexposed group (show your calculation): 17. Interpretation of the measure of associationExplanation / Answer
Questions 14-17 refer to the following information: Researchers carried out a study to assess the association between age and seat belt use. During a two-month period, an interviewer and a road traffic police officer randomly stopped 1400 passenger cars, in 10 sites of randomly selected secondary roads in the Athens, Greece metropolitan area. The policeman stopped the car and the interviewer inspected seat belt availability and use and recorded basic demographic variables, date and time of day or night. The percent of participants who wore seatbelts was 15% in 16-24- year-olds, 18% in 25-34 year olds, 19 % in 35-64-year-olds, and 28% in those 65 years and older. 14. What type of study design is this? (Choose the one best answer) a. ecologic b. case series c. cross-sectional d. case-control e. cohort f. randomized trial 15. Name the appropriate measure of association for this type of study: 16. Calculate the measure of association using those 265 years olds as the "expose" group and those 15-24 years old as the unexposed group (show your calculation): 17. Interpretation of the measure of association
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