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Obesity and obesity-related markers associated with breast and colorectal cancer occurence and mortalityGathirua-Mwangi, Wambui Grace 05 April 2016 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Purpose: Obesity is a growing public health problem and the second most
preventable cause of death in the US. Obesity has been linked as a risk factor for
several cancers. However, there are limited studies that have examined the roles
of metabolic syndrome (MetS) and C-reactive protein (CRP), as well as change
in body composition from early adulthood to late adulthood on the risk of cancer.
The overall objective of this dissertation was to determine the association of
obesity and obesity-related markers with breast and colorectal cancer occurrence
and mortality.
Methods: Three datasets were used. The first study used 4,500 asymptomatic
adults who were surveyed during a colorectal cancer screening study. The
second study was based on the National Health and Nutrition Examination
Survey (NHANES) 2005-2010. The dataset had 172 breast cancer survivors and
2,000 women without breast cancer. The last manuscript resulted from the
NHANES follow-up study (NHANES III). A total of 120 cancer deaths from breast
and colorectal deaths were identified from 10,103 women aged 18 years or older.
Results: Overall, obesity and obesity related markers were associated with
breast and colorectal cancer occurrence and mortality. BMI change and WC
change were positively associated with increased risk of advanced colorectal
neoplasia (AN). WC measures (both static and dynamic) were generally a better
predictor of AN compared to BMI. In the second study involving breast cancer survivors, neither MetS nor CRP were associated with having a breast cancer
diagnosis. Also, none of the individual components of MetS (WC, Triglycerides,
HDL, fasting blood glucose and blood pressure) were associated with a breast
cancer diagnosis. In the last study, MetS was associated with increased risk of
mortality from obesity-related cancers. In addition, all components of MetS,
except dyslipidemia, were associated with increased risk of mortality for the
obesity-related cancers.
Conclusion: Obesity expressed in terms of BMI and WC, or their change, MetS
and CRP are important factors in regard to the occurrence, survivorship and
mortality of breast and colorectal cancer. The results of this research underscore
the importance of maintaining a healthy weight.
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| 182 |
Hodnocení pooperačních lymfedemů u různě radikálních operací karcinomu vulvy a děložního hrdla / Evaluation of postoperative lymphoedema after differently radical surgery for vulvar and cervical carcinomaNováčková, Marta January 2013 (has links)
The aim of this study was a prospective detection of postoperative lymphedema of the lower limbs in patients after the surgery for cervical and vulvar cancer using different methods of examination and their comparison and monitoring of postoperative complications and quality of life. Totally 78 women were followed after the surgery for cervical cancer and 36 for carcinoma of the vulva. Due to the radicality of the surgery the patients were divided into the conservative and radical groups. Lower limbs lymphedema were evaluated preoperatively and 3, 6 and 12 months after the surgery by the measurement of the lower limbs circumference, multifrequency bioelectrical impedance analysis (MFBIA) and subjective feeling. Quality of life using the European Organisation for Research and Treatment of Cancer (EORTC) questionnaires was evaluated before and 6 and 12 month after the surgery. 12 months after the cervical cancer surgery 35.9 % of patients reported subjective lymphedema, 37.18 % lymphedema were objectively diagnosed by the measurement of lower limb circuits and in 52.56 % of cases the increase of amount of extracellular fluid was detected by the MFBIA Ri/R0 method. The prevalence of lymphedema after the surgery for vulvar cancer reached 19.44% by the subjective assessment, 38.89 % by the measurement of...
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| 183 |
Effects of Proxies for Muscle Fiber Composition and Body Composition on Resting Blood PressureSlattery, Eric William 05 May 2014 (has links)
No description available.
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| 184 |
Análise comparativa de quatro índices clínicos de obesidade em relação a fatores de risco e doenças cardiovasculares em idosos funcionalmente independentes / Comparative analysis of four obesity indices in relation to risk factors and cardiovacular diseases for functionally independent elderlySílvia Von Tiesenhausen de Sousa-Carmo 12 January 2016 (has links)
Introdução A população mundial vem envelhecendo, e apresentando aumento na prevalência de obesidade, que é fator de risco cardiovascular e metabólico. Índices antropométricos, em particular aqueles que evidenciam obesidade visceral, são marcadores de distúrbios cardiometabólicos. Não há consenso sobre qual o melhor índice para a população idosa. Objetivo Descrever a associação entre índices antropométricos, fatores de risco e eventos cardiovasculares em idosos funcionalmente independentes. Material e casuística Em revisão de prontuários de instituto público de geriatria foram coletados dados sócio-demográficos, sobre comorbidades, doença coronariana (ICo) e doença cerebrovascular (AVC), e dados antropométricos, a saber: índice de massa corporal (IMC), circunferência de cintura (CC), razão cintura-quadril (RCQ) e razão cintura-altura (RCA). Resultados Foram analisados 989 idosos, 85,6% mulheres, 67,5 ± 5,5 anos, 52,8% com até quatro anos de estudo, 72,6% hipertensos (HAS) e 21,5% diabéticos (DM). A freqüência de dislipidemia (DLP) foi 43,2% e de artrose 66,6%, com predomínio entre mulheres (p=0,015 e p=0,001, respectivamente). Sedentarismo foi relatado por 66,2% e tabagismo por 22,5%, com predomínio entre homens (p=0,004 e p < 0,001, respectivamente). Cerca de 10% dos idosos apresentavam concomitantemente HAS, DM e DLP. ICo foi relatada por 5,5% da amostra, e AVC por 3,2%, com predomínio entre homens (p=0,001 e p=0,013, respectivamente). A maioria apresentou excesso de peso (76,3%) e obesidade central (CC aumentada em 71,4%, RCQ aumentada em 59,4% e RCA aumentada em 84,1%). Houve associação entre IMC >= 35 kg/m2 e CC >= 102 cm e ICo entre homens, com maior risco quando CC >= 102 cm; resultado semelhante ocorreu para homens sedentários. Conclusões A maioria dos idosos apresentava HAS e sedentarismo. IMC, CC e RCQ apresentaram associação com HAS para todos, e RCA apenas para mulheres. CC apresentou associação com DM para todos, e RCQ e RCA apenas para mulheres. Os limites dos índices antropométricos para a população adulta associaram-se ao risco cardiometabólico em idosos. CC apresentou associação direta com ICo e risco sete vezes maior em homens, sugerindo o uso deste parâmetro para a população idosa masculina. Obesidade em idosos deve ser discutida em profundidade e há premência de abordagens direcionadas à promoção de saúde e prevenção de doenças para a população idosa / Rationale Population is ageing and presenting increasing prevalence of obesity, which is a cardiovascular and metabolic risk factor. Anthropologic indices may indicate cardiometabolic disturbances, particularly the ones related to visceral adiposity. There is no consensus which is the best index for the aged. Objective This study aims to describe the association between anthropologic indices, risk factors, and cardiovascular diseases for functionally independent elderly. Methods and subjects Patients\' records at a public geriatric institute were surveyed and data was collected on demography, comorbidities, coronary heart disease (CHD), stroke, and on anthropometric measurements, specifically body mass index (BMI), waist circumference (WC), waist-hip ratio (WHR), and waistheight ratio (WHtR). Results There were 989 elders, 85.6% females, 67.5±5,5 years old, 52.8% studied up to four years, 72.6% presented hypertension (HTN) and 21.5% diabetes (DM). The prevalence of dyslipidemia (DLP) was 43.2% and for arthrosis it was 66.6%, predominantly among female (respectively p=0.015 and p=0.001). Sedentarism was referred by 66.2% of the sample and tobacco use by 22.5%, predominantly among males (respectively p=0.004 and p < 0.001). Around 10% of all seniors presented HTN, DM and DLP simultaneously. CHD was referred by 5.5% of the participants and stroke by 3.2%, predominantly among males (respectively p=0.001 and p=0.013). The majority of the aged were overweight (76.3%) and presented central obesity (increased WC in 74.1%, increased WHR in 59.4% and increased WHtR in 84.1%). BMI >= 35 kg/m2 e WC >= 102 cm were associated with CHD among males, with higher risk when >= 102 cm. Sedentary men presented similar results. Conclusions The majority of the elders presented HTN and sedentarism. BMI, WC, and WHR were associated with HTN for all subjects, and WHtR only for women. WC was associated with DM for all participants, and WHR and WHtR only for women. The cut off values used for the adult population were associated with cardiometabolic risk among seniors. WC was directly associated with CHD and a risk seven times higher among males. This suggests the use of this cut off value for aged men. Obesity among aged individuals needs to be addressed thoroughly and there is urgency on broad health promotion and disease prevention approaches directed towards the ageing population
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| 185 |
Análise comparativa de quatro índices clínicos de obesidade em relação a fatores de risco e doenças cardiovasculares em idosos funcionalmente independentes / Comparative analysis of four obesity indices in relation to risk factors and cardiovacular diseases for functionally independent elderlySousa-Carmo, Sílvia Von Tiesenhausen de 12 January 2016 (has links)
Introdução A população mundial vem envelhecendo, e apresentando aumento na prevalência de obesidade, que é fator de risco cardiovascular e metabólico. Índices antropométricos, em particular aqueles que evidenciam obesidade visceral, são marcadores de distúrbios cardiometabólicos. Não há consenso sobre qual o melhor índice para a população idosa. Objetivo Descrever a associação entre índices antropométricos, fatores de risco e eventos cardiovasculares em idosos funcionalmente independentes. Material e casuística Em revisão de prontuários de instituto público de geriatria foram coletados dados sócio-demográficos, sobre comorbidades, doença coronariana (ICo) e doença cerebrovascular (AVC), e dados antropométricos, a saber: índice de massa corporal (IMC), circunferência de cintura (CC), razão cintura-quadril (RCQ) e razão cintura-altura (RCA). Resultados Foram analisados 989 idosos, 85,6% mulheres, 67,5 ± 5,5 anos, 52,8% com até quatro anos de estudo, 72,6% hipertensos (HAS) e 21,5% diabéticos (DM). A freqüência de dislipidemia (DLP) foi 43,2% e de artrose 66,6%, com predomínio entre mulheres (p=0,015 e p=0,001, respectivamente). Sedentarismo foi relatado por 66,2% e tabagismo por 22,5%, com predomínio entre homens (p=0,004 e p < 0,001, respectivamente). Cerca de 10% dos idosos apresentavam concomitantemente HAS, DM e DLP. ICo foi relatada por 5,5% da amostra, e AVC por 3,2%, com predomínio entre homens (p=0,001 e p=0,013, respectivamente). A maioria apresentou excesso de peso (76,3%) e obesidade central (CC aumentada em 71,4%, RCQ aumentada em 59,4% e RCA aumentada em 84,1%). Houve associação entre IMC >= 35 kg/m2 e CC >= 102 cm e ICo entre homens, com maior risco quando CC >= 102 cm; resultado semelhante ocorreu para homens sedentários. Conclusões A maioria dos idosos apresentava HAS e sedentarismo. IMC, CC e RCQ apresentaram associação com HAS para todos, e RCA apenas para mulheres. CC apresentou associação com DM para todos, e RCQ e RCA apenas para mulheres. Os limites dos índices antropométricos para a população adulta associaram-se ao risco cardiometabólico em idosos. CC apresentou associação direta com ICo e risco sete vezes maior em homens, sugerindo o uso deste parâmetro para a população idosa masculina. Obesidade em idosos deve ser discutida em profundidade e há premência de abordagens direcionadas à promoção de saúde e prevenção de doenças para a população idosa / Rationale Population is ageing and presenting increasing prevalence of obesity, which is a cardiovascular and metabolic risk factor. Anthropologic indices may indicate cardiometabolic disturbances, particularly the ones related to visceral adiposity. There is no consensus which is the best index for the aged. Objective This study aims to describe the association between anthropologic indices, risk factors, and cardiovascular diseases for functionally independent elderly. Methods and subjects Patients\' records at a public geriatric institute were surveyed and data was collected on demography, comorbidities, coronary heart disease (CHD), stroke, and on anthropometric measurements, specifically body mass index (BMI), waist circumference (WC), waist-hip ratio (WHR), and waistheight ratio (WHtR). Results There were 989 elders, 85.6% females, 67.5±5,5 years old, 52.8% studied up to four years, 72.6% presented hypertension (HTN) and 21.5% diabetes (DM). The prevalence of dyslipidemia (DLP) was 43.2% and for arthrosis it was 66.6%, predominantly among female (respectively p=0.015 and p=0.001). Sedentarism was referred by 66.2% of the sample and tobacco use by 22.5%, predominantly among males (respectively p=0.004 and p < 0.001). Around 10% of all seniors presented HTN, DM and DLP simultaneously. CHD was referred by 5.5% of the participants and stroke by 3.2%, predominantly among males (respectively p=0.001 and p=0.013). The majority of the aged were overweight (76.3%) and presented central obesity (increased WC in 74.1%, increased WHR in 59.4% and increased WHtR in 84.1%). BMI >= 35 kg/m2 e WC >= 102 cm were associated with CHD among males, with higher risk when >= 102 cm. Sedentary men presented similar results. Conclusions The majority of the elders presented HTN and sedentarism. BMI, WC, and WHR were associated with HTN for all subjects, and WHtR only for women. WC was associated with DM for all participants, and WHR and WHtR only for women. The cut off values used for the adult population were associated with cardiometabolic risk among seniors. WC was directly associated with CHD and a risk seven times higher among males. This suggests the use of this cut off value for aged men. Obesity among aged individuals needs to be addressed thoroughly and there is urgency on broad health promotion and disease prevention approaches directed towards the ageing population
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The association between levels of fish consumption early in pregnancy and birth outcomes of pregnant women in Johannesburg, South AfricaAlawode, Oluwatoyin Wumi 06 1900 (has links)
Background: Neonates born with low birth weight or preterm are at an increased risk of long-term adverse health outcomes. Research studies on the association of fish consumption during pregnancy and birth outcomes, have led to inconsistent conclusions. Maternal dietary intakes during pregnancy have a significant impact on foetal development and growth. The aim of this project is to determine levels of maternal fish intake at <18 weeks during pregnancy and to determine the association with birth outcomes in pregnant women from Johannesburg, South Africa.
Methods: This Master‘s study is nested in a larger study with a longitudinal observational research design was conducted on 250 pregnant women in Johannesburg, South Africa. For this Master‘s study, data from the first 102 participants were used. Data for this study were collected early in pregnancy (<18 week‘s gestation) and at birth. The birth data were collected by the study mid-wife. Maternal fish consumption during early pregnancy was measured using a Quantitative Food Frequency Questionnaire (QFFQ). Correlation analysis was used to examine the association between maternal fish consumption during early pregnancy and neonatal anthropometry (birth weight, crown heel length and head circumference) and gestational age at birth.
Results: Majority (88.1%) of the mothers were black South Africans between the ages of 18 and 39 with a mean age of 28 ± 5 years. At enrolment, the mean BMI of the women was 27.8±5.8kg/m2 having a mean height of 158.8±6.7cm and a mean weight of 70.4±15.2kg. Most of them were unmarried (45.4%), living in households of 2 – 5 members (86.3%), wage-earning (44.6%) and had Grade 11 or 12 schooling (58.4%). Most (76.5%) of the pregnant women consumed fish rarely (once a month) and the overall median fish intake was 4.8g/day (0; 25). In the study sample 12.5% of new-borns had a low birth weight (<2500g), the percentages of preterm births were 1.0% - extremely preterm (<28 weeks), 2.0% - very preterm (28 – <32 weeks) and 10.0% - moderate to late preterm (32 – 37 weeks). The mean birth weight was 2999.2±624.4g with boys having a mean birth weight of 3157.3±571g and girls at 2819±671g. The new-borns‘ mean gestational age at birth was 38.8±2.4weeks (271.6days). The percentage of new-born head circumference ≤ 31.49cm was 9.2% and the mean head circumference was 34.3±3.6cm with the boys having a mean head circumference of 34.5±2.4cm and the girls 34.1±4.3cm. In this study sample, 3.7% of new-borns were born with crown heel length of 31 – 40cm and the mean crown heel length mean was 49.5±4.6cm with the boys having a mean crown heel length of 49.8±4.9cm and the girls having mean crown heel length of 49.3±4.3cm. In this study, there were no statistically significant associations between fish consumption at early pregnancy and birth outcomes such as gestational age at birth (r=0.051; p=0.625), birth weight (r=-0.043; p=0.695) and crown heel length (r=0.008; p=0.943). There was a positive association between maternal fish consumption in early pregnancy and head circumference of the new-born which tended towards statistical significance (r=0.193; p=0.079).
Conclusions: In this study of pregnant women living in Johannesburg, a few women consumed fish at early pregnancy compared with women who did not consume fish during pregnancy. We found no statistically significant association in this study between fish consumption at early pregnancy and birth outcomes. / Life and Consumer Sciences / MCS (Consumer Science)
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Effects of weight loss and exercise on chemerin serum concentrations and adipose tissue expression in human obesityChakaroun, Rima 14 January 2015 (has links) (PDF)
Chemerin is a chemoattractant adipokine that regulates adipogenesis and may induce insulin resistance. Chemerin serum concentrations are elevated in obese, insulin-resistant, and inflammatory states in vivo. Here we investigate the role of omental (OM) and subcutaneous (SC) adipose tissue chemerin and CMKLR1 messenger RNA (mRNA) expression in human obesity. In addition, we test the hypothesis that changes in chemerin serum concentrations are primarily associated with reduced body fat mass in the context of 3 weight loss intervention studies. Chemerin serum concentration was measured in 740 individuals in a cross-sectional (n = 629) study including a subgroup (n = 161) for which OM and SC chemerin mRNA expression has been analyzed as well as in 3 interventions including 12 weeks of exercise (n = 60), 6 months of calorie-restricted diet (n = 19) studies, and 12 months after bariatric surgery (n = 32). Chemerin mRNA is significantly higher expressed in adipose tissue of patients with type 2 diabetes mellitus and correlates with circulating chemerin, body mass index (BMI), percentage body fat, C-reactive protein, homeostasis model assessment of insulin resistance, and glucose infusion rate in euglycemic-hyperinsulinemic clamps. CMKLR1 mRNA expression was not significantly different between the 2 fat depots. Obesity surgery–induced weight loss causes a significant reduction on both OM and SC chemerin expression. All interventions led to significantly reduced chemerin serum concentrations. Decreased chemerin serum concentrations significantly correlate with improved glucose infusion rate and reduced C-reactive protein levels independently of changes in BMI. Insulin resistance and inflammation are BMI-independent predictors of elevated chemerin serum concentrations. Reduced chemerin expression and serum concentration may contribute to improved insulin sensitivity and subclinical inflammation beyond significant weight loss.
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Exame médico periódico e risco cardiovascular em trabalhadores de uma grande empresa do Rio de Janeiro / Periodic medical examinations and cardiovascular risk in workers of a large company in Rio de JaneiroBruno, Ana Cecilia Rocha January 2009 (has links)
Made available in DSpace on 2011-05-04T12:36:24Z (GMT). No. of bitstreams: 0
Previous issue date: 2009 / Neste estudo, foi analisado o risco cardiovascular de trabalhadores administrativos de uma grande empresa do Rio de Janeiro. Para tanto, a Síndrome Metabólica foi considerada como marcador, por encerrar um conjunto de alterações associadas a um elevado risco de doença cardiovascular e/ou diabetes, tais como obesidade abdominal, resistência insulínica, dislipidemia e hipertensão arterial. Os critérios para Síndrome Metabólica da Organização Mundial de Saúde, do Programa Nacional de Educação para o Colesterol-Terceiro Painel para Tratamento do Adulto e da Federação Internacional de Diabetes foram utilizados para diagnóstico, assim como o algoritmo de Framingham foi calculado. Dados do exame médico periódico foram reunidos, no período compreendido entre janeiro de 2003 até dezembro de 2007. Dos 2.052 exames realizados em 2003, 1.260 foram considerados para análise por estarem completos. Um grupo de 123 trabalhadores foi diagnosticado pelo critério da Federação Internacional de Diabetes e acompanhado durante cinco anos. Estabeleceu-se a relação entre a síndrome e as diversas ocupações, bem como com o absenteísmo. A prevalênciade 9,7 por cento foi abaixo da encontrada na literatura. Não foram observadas diferenças entre os grupos ocupacionais e, quanto ao absenteísmo, as faltas por problemas do aparelho circulatório foram a segunda causa mais importante. Verificou-se a baixa participação dos trabalhadores nos programas de saúde oferecidos. Os trabalhadores que realizaram exame médico periódico em 2007 foram diagnosticados pelos três critérios. A prevalência observada de 3,8 por cento com base no critério da Organização Mundial de Saúde; 16,6 por cento no Programa Nacional de Educação para o Colesterol-Terceiro Painel para Tratamento do Adulto e 16,3 por cento na Federação Internacional de Diabetes, novamente, foi abaixo da encontrada na literatura. O algoritmo de Framingham foi calculado e ao considerar a Síndrome Metabólica como fator agravante, quintuplicou-se a parcela de trabalhadores em alto risco para doenças cardiovasculares. Esse grupo necessita abordagem especial para tratamento médico e modificação do estilo de vida, a fim de reduzir o risco de incapacidade ou morte prematura. / In this dissertation the cardiovascular risk among office workers from a large company in Rio de Janeiro was studied. So, the Metabolic Syndrome was considered as a marker because it is associated with a clustering of components that increase the risk of cardiovascular disease and/or diabetes, like abdominal obesity, insulin resistance, dyslipidemia and elevated blood pressure. Among the several Metabolic Syndrome
criteria the following three were used: World Health Organization, National Cholesterol
Education Program - Third Adult Treatment Panel, and International Diabetes Federation. Also the Framingham Risk Score was calculated for this population and combined to the Metabolic Syndrome in order to improve the overall cardiovascular
risk marker. Data were collected from the periodic medical examination between January 2003 and December 2007. From 2.052 exams realized in 2003, 1.260 were considered. A group of 123 workers was diagnosed with Metabolic Syndrome using the International Diabetes Federation criteria and followed during five years. The
prevalence found of 9,7% was lower than the one reported in the literature. The Metabolic Syndrome prevalence was uniformly distributed between the different occupational groups in the company. Circulatory disorders were the second cause for lost workdays. Poor participation in the health programs available was observed. The
workers who were submitted to the periodic medical examination in 2007 were diagnosed using the three criteria. The prevalence found were the following: World Health Organization - 3,8%; National Cholesterol Education Program- Third Adult Treatment Panel - 16,6%; and International Diabetes Federation - 16,3%. All the three
were lower than the one reported in the literature. When the Metabolic Syndrome was
added to the Framingham Risk Score as a grievance factor, a 5-fold increase in workers with high risk of cardiovascular disease was observed. This group is in need of a special approach for medical treatment and lifestyle change, in order to reduce disability and premature death.
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Effects of weight loss and exercise on chemerin serum concentrations and adipose tissue expression in human obesityChakaroun, Rima 13 January 2014 (has links)
Chemerin is a chemoattractant adipokine that regulates adipogenesis and may induce insulin resistance. Chemerin serum concentrations are elevated in obese, insulin-resistant, and inflammatory states in vivo. Here we investigate the role of omental (OM) and subcutaneous (SC) adipose tissue chemerin and CMKLR1 messenger RNA (mRNA) expression in human obesity. In addition, we test the hypothesis that changes in chemerin serum concentrations are primarily associated with reduced body fat mass in the context of 3 weight loss intervention studies. Chemerin serum concentration was measured in 740 individuals in a cross-sectional (n = 629) study including a subgroup (n = 161) for which OM and SC chemerin mRNA expression has been analyzed as well as in 3 interventions including 12 weeks of exercise (n = 60), 6 months of calorie-restricted diet (n = 19) studies, and 12 months after bariatric surgery (n = 32). Chemerin mRNA is significantly higher expressed in adipose tissue of patients with type 2 diabetes mellitus and correlates with circulating chemerin, body mass index (BMI), percentage body fat, C-reactive protein, homeostasis model assessment of insulin resistance, and glucose infusion rate in euglycemic-hyperinsulinemic clamps. CMKLR1 mRNA expression was not significantly different between the 2 fat depots. Obesity surgery–induced weight loss causes a significant reduction on both OM and SC chemerin expression. All interventions led to significantly reduced chemerin serum concentrations. Decreased chemerin serum concentrations significantly correlate with improved glucose infusion rate and reduced C-reactive protein levels independently of changes in BMI. Insulin resistance and inflammation are BMI-independent predictors of elevated chemerin serum concentrations. Reduced chemerin expression and serum concentration may contribute to improved insulin sensitivity and subclinical inflammation beyond significant weight loss.
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BIRTHWEIGHT AND SUSCEPTIBILITY TO CHRONIC DISEASEIssa Al Salmi Unknown Date (has links)
The thesis examines the relationship of birthweight to risk factors and markers, such as proteinuria and glomerular filtration rate, for chronic disease in postnatal life. It made use of the Australian Diabetes, Obesity and Lifestyle Study (AusDiab). The AusDiab study is a cross sectional study where baseline data on 11,247 participants were collected in 1999-2000. Participants were recruited from a stratified sample of Australians aged ≥ 25 years, residing in 42 randomly selected urban and non-urban areas (Census Collector Districts) of the six states of Australia and the Northern Territory. The AusDiab study collected an enormous amount of clinical and laboratory data. During the 2004-05 follow-up AusDiab survey, questions about birthweight were included. Participants were asked to state their birthweight, the likely accuracy of the stated birthweight and the source of their stated birthweight. Four hundred and twelve chronic kidney disease (CKD) patients were approached, and 339 agreed to participate in the study. The patients completed the same questionnaire. Medical records were reviewed to check the diagnoses, causes of kidney trouble and SCr levels. Two control subjects, matched for gender and age, were selected for each CKD patient from participants in the AusDiab study who reported their birthweight. Among 7,157 AusDiab participants who responded to the questionnaire, 4,502 reported their birthweights, with a mean (standard deviation) of 3.4 (0.7) kg. The benefit and disadvantages of these data are discussed in chapter three. The data were analysed for the relationship between birthweight and adult body size and composition, disorders of glucose regulation, blood pressure, lipid abnormalities, cardiovascular diseases and glomerular filtration rate. Low birthweight was associated with smaller body build and lower lean mass and total body water in both females and males. In addition low birthweight was associated with central obesity and higher body fat percentage in females, even after taking into account current physical activity and socioeconomic status. Fasting plasma glucose, post load glucose and glycosylated haemoglobin were strongly and inversely correlated with birthweight. In those with low birthweight (< 2.5 kg), the risks for having impaired fasting glucose, impaired glucose tolerance, diabetes and all abnormalities combined were increased by 1.75, 2.22, 2.76 and 2.28 for females and by 1.40, 1.32, 1.98 and 1.49 for males compared to those with normal birthweight (≥ 2.5 kg), respectively. Low birthweight individuals were at higher risk for having high blood pressure ≥ 140/90 mmHg and ≥ 130/85 mmHg compared to those with normal birthweight. People with low birthweight showed a trend towards increased risk for high cholesterol (≥ 5.5 mmol/l) compared to those of normal birthweight. Females with low birthweight had increased risk for high low density lipoprotein cholesterol (≥ 3.5 mmol/l) and triglyceride levels (≥ 1.7 mmol/l) when compared to those with normal birthweight. Males with low birthweight exhibited increased risk for low levels of high density lipoprotein cholesterol (<0.9 mmol/l) than those with normal birthweight. Females with low birthweight were at least 1.39, 1.40, 2.30 and 1.47 times more likely to have angina, coronary artery disease, stroke and overall cardiovascular diseases respectively, compared to those ≥ 2.5 kg. Similarly, males with low birthweight were 1.76, 1.48, 3.34 and 1.70 times more likely to have angina, coronary artery disease, stroke and overall cardiovascular diseases compared to those ≥ 2.5 kg, respectively. The estimated glomerular filtration rate was strongly and positively associated with birthweight, with a predicted increase of 2.6 ml/min (CI 2.1, 3.2) and 3.8 (3.0, 4.5) for each kg of birthweight for females and males, respectively. The odd ratio (95% confidence interval) for low glomerular filtration rate (<61.0 ml/min for female and < 87.4 male) in people of low birthweight compared with those of normal birthweight was 2.04 (1.45, 2.88) for female and 3.4 (2.11, 5.36) for male. One hundred and eighty-nineCKD patients reported their birthweight; 106 were male. Their age was 60.3(15) years. Their birthweight was 3.27 (0.62) kg, vs 3.46 (0.6) kg for their AusDiab controls, p<0.001 and the proportions with birthweight<2.5 kg were 12.17% and 4.44%, p<0.001. Among CKD patients, 22.8%, 21.7%, 18% and 37.6% were in CKD stages 2, 3, 4 and 5 respectively. Birthweights by CKD stage and their AusDiab controls were as follows: 3.38 (0.52) vs 3.49 (0.52), p=0.251 for CKD2; 3.28 (0.54) vs 3.44 (0.54), p=0.121 for CKD3; 3.19 (0.72) vs 3.43 (0.56), p= 0.112 for CKD4 and 3.09 (0.65) vs 3.47 (0.67), p<0.001 for CKD5. The results demonstrate that in an affluent Western country with a good adult health profile, low birthweight people were predisposed to higher rates of glycaemic dysregulation, high blood pressure, dyslipidaemia, cardiovascular diseases and lower glomerular filtration rate in adult life. In all instances it would be prudent to adopt policies of intensified whole of life surveillance of lower birthweight people, anticipating this risk. The general public awareness of the effect of low birthweight on development of chronic diseases in later life is of vital importance. The general public, in addition to the awareness of people in medical practice of the role of low birthweight, will lead to a better management of this group of our population that is increasingly surviving into adulthood.
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