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Objetivo: Identificar a relação entre o IMC e os sintomas e gravidade de asma em adolescentes escolares. Metodologia: Trata-se de um estudo transversal de base populacional em escolas públicas e particulares do município de São José SC, incluindo adolescentes entre 12 a 14 anos de idade. As características de asma foram avaliadas pelo questionário International Study of Asthma and Allergies in Childhood (ISAAC). O indicador antropométrico para classificar o grau nutricional nos adolescentes foi Índice de Massa Corpórea. O nível de significância foi de p > 0,05, e os dados foram analisados usando Statistical Package for the Social Sciencies (SPSS) versão 20.0. Resultados: Foram avaliados estudantes adolescentes (n=2042; 1116 [54,6%] feminino). Um total de 26,4% adolescentes apresentou IMC com percentil >85º, sem diferença estatisticamente significativa entre os que apresentaram critérios para asma e os que não tinham sintomas de asma (28,1% versus 26,3%; p = 0,633). Apenas 263 adolescentes apresentaram critérios de provável asma, mostrando uma prevalência de 13% da doença, em relação a gravidade a maioria apresentou uma menor gravidade não tendo uma associação significativa com sobrepeso e/ou obesidade. Não se encontrou nenhuma relação entre prevalência de sintomas, gravidade e o estado nutricional entre os adolescentes asmáticos eutróficos, com sobrepeso ou obesidade. Conclusão: Este estudo mostrou elevada prevalência de sobrepeso e/ou obesidade entre os adolescentes escolares, independente da presença de sintomas de asma. Entre aqueles com sintomas de asma, houve predomínio de sobrepeso no gênero feminino, entretanto a gravidade dos sintomas de asma não foi associada ao IMC.
Introduction: The association between asthma and obesity in adolescents has been investigated; however, findings from the literature are still controversial. Objective: To identify the association between body mass index (BMI) and asthma symptoms and severity among students aged 12-14 years. Methodology: Cross-sectional population-based study conducted in public and private schools in São José, Santa Catarina, Southern of Brazil. Asthma symptoms were assessed using the International Study of Asthma and Allergies in Childhood (ISAAC). BMI (greater than or equal to the 85percentile) was used to assess the nutritional status. Data were analyzed using descriptive statistics. The association between overweight/obesity (BMI ≥ 85 percentile) and asthma severity was analyzed by calculating odds ratios and confidence intervals. The level of significance was set at p <0.05.Results: A total of 2,042 adolescents (54.6% female) were surveyed. The prevalence of asthma symptoms was 13%, with predominance in female. Of the total, 26.4% had a BMI ≥ 85 percentile. No statistically significant difference was found between the groups with and without asthma symptoms (28.1% versus 26.3%; p = 0.633). No significant associations were found between prevalence and severity of asthma symptoms and overweight and/or obese subjects. Conclusion: There was a high prevalence of overweight and/or obesity among adolescents, regardless of the presence of asthma symptoms. Among those with asthma symptoms, there was a prevalence of overweight among girls, though severity of asthma symptoms was not associated with BMI.
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Objecflve To determine the prevalences of nutritional risk,undemutrition,overweight,and obesity as well as nutritional support and the changes of nutritional risks from admission to discharge or over a two-week period.Methods A consecutive sampling was performed.Dam were collected from general surgical depart-ments in three Beijing teaching hospitals from March to July in 2007.Patients were screened using Nutritional Risk Screening 2002(NRS2002)on admission and two weeks after admission(or discharge).The nutritional supper apphcation during hospital stay was recorded.NRS2002 score≥3 was classified as nutritional risk.BMI<1 8.5kg/m2 with impaired genend condition was defined as undemutrition.Results Among 300 enrolled patients,the NRS2002 WaS completed by 99.0%(297/300)of all patients.The nutritional risk and the prevalence of under_nutrition,overweight,and obesity was 30.0%,8.1%,38.3%,and 9.4%,respectively at admission.Fifty of 90(62.2%)patients who were at nutritional risk received nutritional support while 40 of 210(19.O%)non-risk patients received nutritional support.Especially among major abdominal surgery patients,56 of 90(71.6%)pa-tients who were at nutritional risk received nutritional supper while 35 of 81(43.2%)non-risk pafients received nutritional support.The prevalence of nutritional risk changed from 30.0%to 35.8%(X2=2.271,P=0.132).Conclusions NRS2002 is a feasible nutritional risk screening tool among general surgical pafienm in selected Bei-jing teaching hospitals.Nutritional support is somehow inappropriately apphed in general surgical hospitalized pa-tients.The prevalence of nutritional risk remains unchanged in general surgical patients during hospitalization.
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Objective:To investigate the effects ofbody mass index on duration of non-hypoxic apnoea during induction and intubation of anesthesia.Methods:80 patients undergoing surgery with general anaesthesia aged 21～63 years old with ASA Ⅰ-Ⅱgrade and without special diseases were included.they were assigned to one of four groups according to body mass index:Group 1(normal,n=20),Group 2 (overweight,n=20),Group 3(Ⅰ? obesity,n=20)and Group 4(Ⅱ?obesity,n=20).Preoxygenation was achieved with an oxygen flowof10 litre/min within 4 minutes.After rapid sequence induction of anaesthesia,the trachea was intubated and the patient was left apneic with disconnected from the anaesthesia circuit until SpO2 decreased to 90%.The time taken for desaturation to 90%from the end of induction of anaesthesia was recorded.Arterial blood samples were drawn when patients to enter the operating room and the end of induction of anaesthesia and SpO2 decreased to 90%respectively for arterial blood ga(sABG)analysis.Results:Desaturation safety period(the time to desaturation to 90%)were significantly differences between four groups with different body mass index(P