Which statement is true regarding Chronic Fatigue Syndrome and Fibromyalgia?

Which statement is true regarding Chronic Fatigue Syndrome and Fibromyalgia?

• A. The highest prevalence is among Latino and African Americans
• B. The disease is most common in young children
• C. It occurs exclusively in females
• D. There is no known prevalence pattern

Answer: (A)

The key idea here is how these syndromes show up across different populations. Chronic Fatigue Syndrome and Fibromyalgia are more common in adults and show a clear female predominance, but there are also differences in prevalence by race/ethnicity reported in various studies. In several datasets, higher reported prevalence has been observed among Latino and African American groups compared with other populations, though exact rates vary by criteria and setting. That pattern is why this statement is considered true. The other choices don't fit as well. These conditions are not most common in young children—the peak is in adults. They are not exclusive to females, since men can be affected too, though less often. And there is indeed some known prevalence pattern by race/ethnicity and other factors, so saying there is no known pattern ignores the observed data.

The key idea here is how these syndromes show up across different populations. Chronic Fatigue Syndrome and Fibromyalgia are more common in adults and show a clear female predominance, but there are also differences in prevalence by race/ethnicity reported in various studies. In several datasets, higher reported prevalence has been observed among Latino and African American groups compared with other populations, though exact rates vary by criteria and setting. That pattern is why this statement is considered true.

The other choices don't fit as well. These conditions are not most common in young children—the peak is in adults. They are not exclusive to females, since men can be affected too, though less often. And there is indeed some known prevalence pattern by race/ethnicity and other factors, so saying there is no known pattern ignores the observed data.