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Volume 18, Number 5—May 2012

CME ACTIVITY - Research

Risk Factors for Intestinal Invasive Amebiasis in Japan, 2003–2009

Earning CME Credit

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Article Title: Risk Factors for Intestinal Invasive Amebiasis in Japan, 2003–2009

CME Questions

1. Based on the Japanese study by Dr. Nagata and colleagues, which of the following statements about prevalence of amebic colitis is most likely correct?

A. Overall, there was no significant increase in prevalence during the study period

B. During the study period, 0.5% of patients selected for analysis had developed amebic colitis

C. Prevalence among HIV-negative patients remained stable from 2003 to 2009

D. Among HIV-positive patients, the prevalence in 2009 increased 7-fold compared to 2003

2. You are a public health official asked to consult regarding an increase in prevalence of amebic colitis in Japan. Based on the study by Dr. Nagata and colleagues, which of the following statements about risk factors for amebic colitis is most likely to appear in your report?

A. Female sex is an independent risk factor

B. Age over 40 years is an independent risk factor

C. History of syphilitic infection is an independent risk factor

D. In multivariate analysis, HIV infection was associated with twice the risk for amebic colitis

3. Based on the study by Dr. Nagata and colleagues, which of the following statements about differences in risk factors for amebic colitis between HIV-positive and -negative patients would most likely appear in your report?

A. The risk factor profile was significantly different between HIV-positive and -negative patients

B. Contact with commercial sex workers (CSWs) was not a risk factor among HIV-negative patients

C. Immunosuppressed status was a significant independent risk factor in HIV-positive patients

D. Homosexual intercourse appeared to be a risk factor in HIV-positive patients

Activity Evaluation

1. The activity supported the learning objectives.

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2. The material was organized clearly for learning to occur.

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3. The content learned from this activity will impact my practice.

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4. The activity was presented objectively and free of commercial bias.

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