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P267 Are ulcerative colitis outpatients at nutritional risk?

M. Lopes1, A. Lyra1, 2, R. Rocha3, C. Factum3, L. Sales3, L. Mello3, C. Lima2, B.C. da Silva*2, G. Santana1, 2

1Federal University of Bahia, Post-graduate Programme in Medicine and Health, Salvador, Brazil, 2Federal University of Bahia, Gastroenterology Unit, University Hospital Professor Edgard Santos, Salvador, Brazil, 3Federal University of Bahia, Department of Sciences of Nutrition, Salvador, Brazil

Background

The nutritional status of ulcerative colitis (UC) patients has changed as in general population, with a decrease in the number of malnourished and an increase in the obese. The aim of this study was to evaluate anthropometric nutritional status, body composition, and dietary intake of UC patients and to compare with a control group.

Methods

Cross-sectional study conducted between September 2012 and March 2013 with 67 adult outpatients with UC and 66 healthy volunteers matched for gender and age. The nutritional data evaluated were body mass index (BMI), waist circumference (WC), body fat in kg (BFkg), body fat percentage (BF%), lean mass in kg (LM), and dietary intake (24-hour recall method applied in 2 non-consecutive days). Body composition was assessed by dual-energy X-ray absorptiometry. Energy, macro- and micronutrients intakes were quantified by DietWin Personal software, and adequacy of dietary intake was evaluated according to reference values proposed by the Dietary Reference Intakes.

Results

Mean age of patients was 38.2 ± 9.0 years; 61.2% were female; and 97.0% were in disease remission. Most patients presented adequate BMI (58.8%), followed by 33.8% overweight. Further, 39.0% presented high WC and 67.6% excess BF%. However, the median values of BMI, WC, and BFkg were lower compared with the control group (p = 0.003, p = 0.001, and p = 0.024, respectively). The same was not found in the LM and BF% variables (p > 0.05). In relation to the food intake there was inadequacy in fibre (95.5%); vitamin B1 (70.1%), B2 (52.2%), B3 (49.3%), B6 (86.6%), B9 (100.0%), B12 (79.1%), vitamin A (73.1%); vitamin C (38.8%); vitamin E (100.0%); and minerals, calcium (94.0%), phosphorus (17.9%), iron (64.2%), magnesium (95.5%), potassium (100.0%), selenium (100.0%), and zinc (73.1%). Patients had a lower intake of total fat (p = 0.034), saturated fat (p = 0.026), fibre (p = 0.048), calcium (p = 0.002), phosphorus (p = 0.000), magnesium (p = 0.001), potassium (p = 0.016), iron (p = 0.004), and zinc (p = 0.006), compared with the control group.

Conclusion

Although BMI is adequate in most patients with UC, it is noteworthy that these patients are at nutritional risk, considering the upwards trend of patients being overweight coupled with the presence of central adiposity, high body fat, and mostly nutrient intake deficiency. Thus, it is important to emphasise the need for a proper and thorough nutritional evaluation for these patients.

Support: FAPESB/CNPq.