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Small Bowel Tumors in Connecticut: Epidemiological and Clinical Characteristics

Ioannis Hatzaras1, Farshad Abir1, Paul Sullivan2, Robert Kozol3, Walter Longo1
1Yale University, New Haven, CT;2CT Department of Health, CT Tumor Registry, New Haven, CT;3University of Connecticut, Farmington, CT

Objective: To examine the epidemiology and clinical characteristics of small bowel cancer.
Design: Retrospective study performed between 1980 and 2000.
Setting: Academic. Data from the Connecticut Tumor Registry was analyzed.
Patients: 1260 small bowel cancer cases; 628 (49.84%) men, 632 (50.16%) women; mean age at presentation: 65.2 years.
Interventions:
Main Outcome Measures:
Results:
Most common location was the ileum (374, 29.7%), followed by the duodenum (320, 25.4%) and the jejunum (193, 15.3%). In 367 (29.1%) patient cases [192 males (30.6%), 175 females (27.7%)] a subsequent tumor of the gastrointestinal track was reported. Most prevalent histological type was carcinoid (417, 33%) followed by adenocarcinoma (341, 27%) and lymphoma (198, 15.7%). Predominant race was the Caucasian (1159, 92%%) followed by the African American (91, 7.2%). Stratification per 7 years interval showed: 1980- 1986: 10.5 cases per 100,000 people, 1987 - 1993: 13.05 cases per 100,000 people, 1993 - 2000: 14.86 cases per 100,000 people. Males comprised 44.8% of cases in 1980 - 1986, 50.2% in 1987 - 1993, and 53.3% in 1994 - 2000. African Americans accounted for 7.5% of all cases in 1980- 1986, 5.8% in 1986 - 1993, and 8.2% in 1994 - 2000. Surgery was used in 993 patients (78.8%), followed by no treatment in 225 (17.8%).
Conclusions: The incidence of small bowel tumors in Connecticut has increased. The rate of increase is highest in the male and African American populations. Carcinoids followed by adenocarcinoma are the most common histological types. Surgery is the treatment of choice.

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