In a cross-sectional study of peptic ulcer in the community, 80 in every 100,000 men aged 35 to 49 years and 90 in every 100,000 women aged 35 to 49 years met the criteria for havi... In a cross-sectional study of peptic ulcer in the community, 80 in every 100,000 men aged 35 to 49 years and 90 in every 100,000 women aged 35 to 49 years met the criteria for having a peptic ulcer. The conclusion that, in this age group, women are more likely to develop peptic ulcer than men is: A. Correct B. Incorrect because of the failure to distinguish between incidence and prevalence C. Incorrect because rates were used to compare males and females D. Incorrect because there is no comparison or control group

Understand the Problem

The question presents statistical data from a cross-sectional study regarding the prevalence of peptic ulcers among men and women in a specific age group and asks for an evaluation of the conclusion drawn from that data. It tests understanding of epidemiological concepts such as incidence and prevalence.

Answer

Incorrect because of the failure to distinguish between incidence and prevalence.

The conclusion is incorrect because the cross-sectional study provides prevalence data rather than incidence data, making the comparison potentially misleading.

Answer for screen readers

The conclusion is incorrect because the cross-sectional study provides prevalence data rather than incidence data, making the comparison potentially misleading.

More Information

Cross-sectional studies measure prevalence, which is the total number of cases at a specific point in time, as opposed to incidence, which measures new cases over a period of time.

Tips

A common mistake is confusing prevalence with incidence. Prevalence includes all existing cases, while incidence only counts new cases.

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