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Träfflista för sökning "WFRF:(Simmons David 1959 ) "

Sökning: WFRF:(Simmons David 1959 )

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1.
  • Hilden, K., et al. (författare)
  • Gestational diabetes and adiposity are independent risk factors for perinatal outcomes : a population based cohort study in Sweden
  • 2019
  • Ingår i: Diabetic Medicine. - : WILEY. - 0742-3071 .- 1464-5491. ; 36:2, s. 151-157
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims To evaluate the interaction effects of gestational diabetes (GDM) with obesity on perinatal outcomes. Methods A population-based cohort study in Sweden excluding women without pre-gestational diabetes with a singleton birth between 1998 and 2012. Logistic regression was performed to evaluate the potential independent associations of GDM and BMI with adverse perinatal outcomes as well as their interactions. Main outcome measures were malformations, stillbirths, perinatal mortality, low Apgar score, fetal distress, prematurity and Erb's palsy. Results Some 1,294,006 women were included, with a GDM prevalence of 1% (n = 14,833). The rate of overweight/obesity was 67.7% in the GDM-group and 36.1% in the non-GDM-group. No significant interaction existed. Offspring of women with GDM had significantly increased risk of malformations, adjusted odds ratio (aOR) 1.16 (95% confidence intervals 1.06-1.26), prematurity, aOR 1.86 (1.76-1. 98), low Apgar score, aOR 1.36 (1.10-1.70), fetal distress, aOR 1.09 (1.02-1.16) and Erb's palsy aOR 2.26 (1.79-2.86). No risk for stillbirth or perinatal mortality was seen. Offspring of overweight (BMI 25-29.9 kg/m(2)), obese (BMI 30-34.9 kg/m(2)) and severely obese women (BMI >= 35.0 kg/m(2)) had significantly increased risks of all outcomes including stillbirth 1.51 (1.40-1.62) to 2.85 (2.52-3.22) and perinatal mortality 1.49 (1.40-1.59) to 2.83 (2.54-3.15). Conclusions There is no interaction effect between GDM and BMI for the studied outcomes. Higher BMI and GDM are major independent risk factors for most serious adverse perinatal outcomes. More effective pre-pregnancy and antenatal interventions are required to prevent serious adverse pregnancy outcomes among women with either GDM or high BMI.
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2.
  • Fadl, Helena, 1965-, et al. (författare)
  • Changing diagnostic criteria for gestational diabetes in Sweden : a stepped wedge national cluster randomised controlled trial-the CDC4G study protocol
  • 2019
  • Ingår i: ; 19:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The optimal criteria to diagnose gestational diabetes mellitus (GDM) remain contested. The Swedish National Board of Health introduced the 2013 WHO criteria in 2015 as a recommendation for initiation of treatment for hyperglycaemia during pregnancy. With variation in GDM screening and diagnostic practice across the country, it was agreed that the shift to new guidelines should be in a scientific and structured way. The aim of the Changing Diagnostic Criteria for Gestational Diabetes (CDC4G) in Sweden () is to evaluate the clinical and health economic impacts of changing diagnostic criteria for GDM in Sweden and to create a prospective cohort to compare the many long-term outcomes in mother and baby under the old and new diagnostic approaches.Methods: This is a stepped wedge cluster randomised controlled trial, comparing pregnancy outcomes before and after the switch in GDM criteria across 11 centres in a randomised manner. The trial includes all pregnant women screened for GDM across the participating centres during January-December 2018, approximately two thirds of all pregnancies in Sweden in a year. Women with pre-existing diabetes will be excluded. Data will be collected through the national Swedish Pregnancy register and for follow up studies other health registers will be included.Discussion: The stepped wedge RCT was chosen to be the best study design for evaluating the shift from old to new diagnostic criteria of GDM in Sweden. The national quality registers provide data on the whole pregnant population and gives a possibility for follow up studies of both mother and child. The health economic analysis from the study will give a solid evidence base for future changes in order to improve immediate pregnancy, as well as long term, outcomes for mother and child.
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3.
  • Abel, I, et al. (författare)
  • Overview of the JET results with the ITER-like wall
  • 2013
  • Ingår i: Nuclear Fusion. - 0029-5515 .- 1741-4326. ; 53:10, s. 104002-
  • Tidskriftsartikel (refereegranskat)abstract
    • Following the completion in May 2011 of the shutdown for the installation of the beryllium wall and the tungsten divertor, the first set of JET campaigns have addressed the investigation of the retention properties and the development of operational scenarios with the new plasma-facing materials. The large reduction in the carbon content (more than a factor ten) led to a much lower Z(eff) (1.2-1.4) during L- and H-mode plasmas, and radiation during the burn-through phase of the plasma initiation with the consequence that breakdown failures are almost absent. Gas balance experiments have shown that the fuel retention rate with the new wall is substantially reduced with respect to the C wall. The re-establishment of the baseline H-mode and hybrid scenarios compatible with the new wall has required an optimization of the control of metallic impurity sources and heat loads. Stable type-I ELMy H-mode regimes with H-98,H-y2 close to 1 and beta(N) similar to 1.6 have been achieved using gas injection. ELM frequency is a key factor for the control of the metallic impurity accumulation. Pedestal temperatures tend to be lower with the new wall, leading to reduced confinement, but nitrogen seeding restores high pedestal temperatures and confinement. Compared with the carbon wall, major disruptions with the new wall show a lower radiated power and a slower current quench. The higher heat loads on Be wall plasma-facing components due to lower radiation made the routine use of massive gas injection for disruption mitigation essential.
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4.
  • Fadl, Helena E., 1965-, et al. (författare)
  • Trends in diabetes in pregnancy in Sweden 1998-2012
  • 2016
  • Ingår i: BMJ Open Diabetes Research & Care. - : BMJ Publishing Group Ltd. - 2052-4897. ; 4:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Diabetes in pregnancy has been shown to increase in parallel with the increasing prevalence of obesity. In this national population-based study, we analyzed the trends for gestational diabetes mellitus (GDM), type 1 diabetes in pregnancy, and type 2 diabetes in pregnancy in Sweden between 1998 and 2012.Research design and methods: A population-based cohort study using the Swedish national medical birth registry data. The time periods were categorized into 3-year intervals and adjusted for maternal body mass index (BMI), ethnicity, and age in a logistic regression.Results: Each type of diabetes increased over the studied 15-year period. Type 1 diabetes increased by 33.2% (22.2-45.3) and type 2 diabetes by 111% (62.2-174.4) in the adjusted model. Nordic women had the highest prevalence of type 1 diabetes (0.47%) compared with other ethnic groups. The increase in GDM and, to a lesser extent, type 2 diabetes was explained by country of birth, BMI, and maternal age. The prevalence of GDM in Nordic women (0.7-0.8%) did not increase significantly over the time period.Conclusions: All types of diabetes in pregnancy increased over the 15-year time period in Sweden. Maternal pre-pregnancy BMI remains the key factor explaining the increase in GDM/type 2 diabetes. How to turn around the growing prevalence of diabetes in pregnancy, with its short-term and long-term health effects on both mother and child, requires population-based interventions that reduce the likelihood of entering pregnancy with a raised BMI.
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5.
  • Harreiter, Jürgen, et al. (författare)
  • Do Women with Diabetes Need More Intensive Action for Cardiovascular Reduction than Men with Diabetes?
  • 2020
  • Ingår i: Current Diabetes Reports. - : Springer. - 1534-4827 .- 1539-0829. ; 20:11
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose of review: This narrative review makes the case for greater efforts to reduce cardiovascular disease (CVD) risk in women with diabetes.Recent findings: In a recent meta-analysis including five CVOTs of diabetes medications with 46,606 subjects, women (vs men) with type 2 diabetes had a higher relative risk for stroke (RR 1.28; 95% CI 1.09, 1.50) and heart failure (1.30; 1.21, 1.40). Prior studies found higher "within-gender" RR for CVD mortality in women with diabetes although men have an absolute higher risk. Women with prior gestational diabetes mellitus (GDM) have a 2-fold higher CVD risk than the background population. Worse CVD and CVD risk factor management in women, as well as lower female therapy adherence, contribute further to these disparities.Summary: The mechanism behind this excess risk includes biological, hormonal, socioeconomic, clinical, and behavioral factors that still require further investigation. The need for more intensive CVD reduction in women now includes more attention to screening for both incident diabetes and CVD risk factors among high-risk women.
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7.
  • Hildén, Karin, 1978-, et al. (författare)
  • Born over 4500 g : the trends in birth trauma and mode of delivery in women with GDM and type 1 diabetes in Sweden between 1998-2012
  • 2018
  • Konferensbidrag (refereegranskat)abstract
    • Background: We have previously shown that during the years 1998-2012, the overall incidence of LGA and birthweight decreased in both women with and without GDM in Sweden, and unpublished preliminary results show that there is a converse trend among women with T1DM. The incidence of Erbs palsy also decreased in the GDM and background population, but remained unchanged for women with T1DM. Since macrosomia is one of the most prominent risk factors for Erb´s palsy and delivery complications, the aim of the study was to evaluate trends in incidence of Erb´s palsy and delivery mode in the macrosomic group defined as weight ≥4500g and we present here our preliminary results.Method: This is a cohort study in Sweden 1998-2012 , including singleton macrosomic (≥4500 g) births. Vaginal deliveries were selected for the analyses relating to Erb´s plasy. Poisson regression was used to evaluate trends per year in both the GDM, T1DM and the background population. Results were partly stratified on BMI, to be able to detect any group differences in trends. P-value of <0.05 was considered statistically significant.Results: In total there were 57 2015 macrosomic infants, of whom (n= 36 933, 64,6%) were delivered vaginally. Of these, only 2.1 % (n=798) were vaginally delivered by women with GDM, (1.4%) type 2 diabetes (0.1%) or T1DM (0.7%). The trend in Erb´s palsy decreased significantly in the background population at a rate of OR 0.954 (95% CI 0.936-0.973) per year. For women with GDM or T1DM there was no significant change in incidence of trends over these years for Erb´s palsy. As for Caesarean section (CS) there was a significant increase per year for GDM pregnancies (OR 1.028, 95% CI 1.007-1.049) and in the background population (1.018 95% CI 1.013-1.022). No change was seen for CS in pregnancies with T1DM.Conclusion: Even though the rates of LGA and birthweight have decreased in Sweden over this time period for women with GDM and the background population, we could not see a significant decrease in Erb´s palsy among women with vaginal births in either the GDM group or for women with T1DM in the macrosomic infants. However, a decrease was seen in the incidence of Erb´s palsy in the macrosomic babies in the background population. The rates of CS have significantly increased in the background population and for GDM pregnancies, but been stable for T1DM. We conclude that the disparity in risk of Erbs has grown over this time period. Further work is needed to ascertain whether this is due to the need for improved surveillance, a higher CS rate, and/or improved glycaemic management (or other factors).
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9.
  • Hildén, Karin, 1978- (författare)
  • Gestational diabetes, obesity and pregnancy outcomes in Sweden
  • 2018
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • The overall aim of the thesis was to evaluate maternal and fetal outcomes in relation to gestational diabetes mellitus (GDM) in both a shortand long term perspective.Study I was a population based cohort study including 1 249 908 pregnancies during the years 1998-2012. Maternal outcomes and fetal size were studied in relation to BMI and presence/absence of GDM. The conclusions were that maternal overweight and obesity are associated with similar increments in risks of adverse maternal outcomes and delivery of large-for-gestational-age infants in women with and without gestational diabetes. Study II was a population based cohort study using the same cohort as in study I. Fetal outcomes were studied in relation to GDM-status and BMI. Interaction between GDM and BMI for the outcomes was also analyzed. Conclusions were that excess maternal weight and GDM were, both major independent risk factors for adverse, perinatal outcomes, there were no intercation. In study III the same cohort was used to study time trends 1998-2012 in maternal and perinatal outcomes in women with GDM. Trends were also analyzed in women without GDM for comparison. This study showed that there have been improvements in fetal outcomes for women with GDM. But since the improvements were similar or less than the changes in the background population this was probably not due to better medical care for women with GDM alone. The conlusion is that there is still a lot to do to improve outcomes for women with GDM. Study IV was a case control study aiming to evaluate if there was an interaction between GDM and preeclampsia (PE) or if the conditions were independent risk factors for later cardio vascular disease (CVD). We also wanted to analyze how BMI influenced the association between PE and later CVD. We showed that GDM and PE are independently associated with elevated risk for CVD. The association of PE and CVD is not affected by BMI to a great extent as is the case in GDM and CVD.
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