Obesity and asthma in schoolchildren

Abstracts S218 International Journal of Obesity T5:PS.157 Obesity and asthma in schoolchildren Padrão, P1, Moreira, P1,2, Valente, H¹, Cordeiro, T¹, Bessa, M¹, Lopes, C3, Moreira, A4 ¹ Faculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal 2Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal 3 Department of Hygiene and Epidemiology, University of Porto Medical School, Porto, Portugal 4 Department of Immunology, University of Porto Medical School, Porto, Portugal and Department of Immunoallergology, University Hospital of São João, Porto, Portugal Background: Asthma and obesity are major public health problems in childhood, but controversy remains regarding the mechanisms underlying this relationship. The aim of this study was to evaluate the association between asthma and obesity risk in schoolchildren. Participants and methods: The study was performed using a convenience sample of 1962 Portuguese school children (49.8% girls), 5-10-year-old. Height and weight were measured according to international standards, and body mass index (BMI) was calculated. The definition of obesity was based on average centiles according to the International Obesity Task Force cut-offs. Children’s parents completed a selfadministered questionnaire, which provided information on general family background characteristics, children’s dietary intake (using a semi-quantitative food frequency questionnaire) and asthma (based on the following question: “Have you ever been told by any doctor that your son had asthma?”. Unconditional logistic regression models were fitted to estimate the magnitude of the association between asthma and obesity in children, adjusting for confounders (age and energy intake). Results: The prevalence of obesity was 11.0% in girls and 14.0% in boys and the prevalence of asthma was 7.3% in girls and 11.0% in boys. Girls reporting asthma presented a two-fold risk for being obese (OR = 2.07, 95% CI 1.06-4.05, p trend = 0.05), even after further adjustment for confounders (OR = 2.16, 95% CI 1.10-4.24, p trend = 0.05). In boys, no association was found between asthma and obesity. Conclusion: Asthma was positively associated with obesity in girls. T5:PS.158 Obesity remains underdiagnosed in english hospital in-patients Sharma, V1,Harger, S2, Braithwaite, A 2, Finer, N 1,2 1Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK 2University of Cambridge School of Clinical Medicine, Cambridge, UK Organised medical management of obesity in England remains poorly developed; hospitals are required as a performance standard to have reporting systems in place to identify in-patients with a BMI  27 with a co-morbidity or BMI 30. We have audited compliance with this performance standard in two hospitals. Notes and clinical records of all patients were inspected on sample medical, surgical and acute admission wards. Data on height, weight, BMI, waist circumference, clinical statement about body habitus, and current prescription of drugs for cardiovascular or metabolic disease were recorded. Where height was not recorded, an estimated BMI was calculated using ‘average’ height for men (1.75m) and women (1.61m). Table: Weight, BMI and waist circumference recorded on inpatients Anthropometry Hospital An=156 Hospital B n=147 Weight 110 (70.5%) 85 (57.82%) Waist circum. none none BMIs recorded 78 (50%) 14( 9.5%) BMI category BMI30 BMI27 BMI<20 BMI 30 BMI 27 BMI<20 Recorded 2415.3% 4126.2% 117.0% 96.1% 10(6.8%) - Estimated 95.7% - 1610.9% 4127.9% 1510.2% Under-reporting of BMI is common. Length of stay impacted upon weight records: weight was recorded in no patients with <2 days and only 80% with ≥8 days admission. Paradoxically, those with CV or diabetes-related conditions were less likely to have a weight recorded. Waist circumference was not recorded on any patient. Recognition of overweight and obesity (and also presumably underweight) remains poor in English hospitals. T5:PS.159 Effects of exercise on risk factors, exercise capacity and body composition in obese individuals, class I-III. Wisén A1, Saltin B2, Christiansen L1 1Bispebjergs Hospital, Copenhagen, Denmark; 2Centre of Muscle Research, Rigshospitalet, Copenhagen Denmark The effects of different exercise intensities in severely obese individuals (mean BMI= 42.1; range 33.3-64.8) were explored. Subjects were randomised into two groups and exercise performed for 16 weeks. Tests were performed prior and after the exercise period. Both groups performed supervised exercise 3 times a week. A high intensity group (HI, n=51) exercised for 1 hour, and a low intensity group (LO, n=43) for ½ hour, on each occasion. The LO group also performed non-supervised exercise at least 3 times a week. High intensity Low intensity Test 1 Test 2 (n) Test 1 Test 2 (n) Weight (kg) 123 120 *** 51 122 120 * 43 BMI (kg ⋅ m2)42 40 *** 51 43 42 ** 43 Fat (% of body weight) 46.3 45.0*** 51 46.5 46.0 ns 43 Fat (kg) 54.5 51.6*** 51 55.0 53.5 ns 43 VO2max (L ⋅ min) 2.7 2.9 *** 51 2.2 2.3 * 43 VO2max (ml ⋅ min-1 ⋅ kg-1)22.3 24.8 ** 51 18.8 20.1 * 43 BPsyst (mmHg) 153 144*** 28# 160 144** 24# BPdiast (mmHg) 99 90.8** 21# 99 90*** 20# TG (microMol/L) 2104 1656* 26# 1955 1830ns 26# LDL (mMol/L) 4.8 4.3* 20# 4.8 4.4ns 20# Glucose (mMol/L) 8.2 7.2ns 13# 9.0 7.0** 9# Table: Mean values and statistical significance. #Risk factors were evaluated, only for subjects with initially increased levels. In conclusion, all evaluated parameters were numerically improved in both groups (Table). In the HI group, several parameters improved with greater significance than in the LO group. T5:PS.160 Changes of body weight in outdoor patients - relationship with morbidity and medication during an observation period of 11 years Dzien A1, DzienBischinger C1, Hoppichler F2, Dämon S2, Lechleitner M3 1Medical Center Innsbruck; 2KH Barmherzige Brüder, Salzburg; 3KH Hochzirl, Innsbruck Objective: In man y overwei g ht and obese patients wei g ht reduction and wei g ht maintenance are difficult to obtain, especiall y under clinical routine procedures. In addition to counselin g pro g rams the dia g nosis of metabolic disease or cardiovascular disorders could be of influence on the patient`s motivation to lose body weight. Methods: Clinical and laborator y results of 3193 patients attendin g a medical outdoor center were evaluated. Dia g nosis and the need for medication were compared between patients with a successful wei g ht loss and those with a continuous weight gain during an observation period of 11 years. Results: In the female study population (n=1844) the percentage of patients with normal BMI was 46%, with overwei g ht 19%, with obesit y 22% and with morbid obesit y 2%. In the male stud y population ( n=1349 ) 44% of the patients revealed a normal BMI, 40% were overwei g ht, 10% obese and 1% morbidl y obese. A counseling program comprisin g dietar y instructions and recommendations for physical activity was offered to all overweight and obese patients. Durin g the followin g observation period of 11 y ears, successful and maintained weight loss could be observed in 313 patients with a mean BMI of 26.8±2.6 kg/m2at the first visit and 25.2±3.3 kg/m2 ( p<0.001 ) at the latest control. At the initial visit this g roup of patients with a successful wei g ht loss revealed more unfavourable metabolic results and a higher prevalence of type 2 diabetes ( 12.5% ) , h y pertension ( 38% ) and coronar y heart disease ( 19% ) , than the g roup of 330 patients with a continuous increase in BMI ( t y pe 2 diabetes 7.2%, h y pertension 25%, coronar y heart disease 12%). During the observation period of 11 years the prevalence of diabetes increased for 1.2% in patients with wei g ht loss and for 1.8% in those with wei g ht g ain. The increase in cardiovascular medication was 24% in patients with wei g ht loss and 48% in the group with weight gain. Conclusion: The results of our evaluation indicate that in addition to counselin g p ro g rams the dia g nosis of metabolic or cardiovascular disease mi g ht be a stron g motivator for patients to lose bod y wei g ht successfull y and to maintain this effect for years.