Hammermagnusson2604
The aim of this retrospective observational study was to assess the long-term impact of pulsatile gonadotropin releasing hormone (GnRH), combined gonadotropin, or testosterone-replacement therapy on hip, femoral, and lumbar bone mineral density (BMD) and Z-score in adult men with idiopathic hypogonadotropic hypogonadism (IHH).
In the cross-sectional study, 69 patients were included and allocated to untreated (n= 42) and treated groups (n= 27). The untreated group included IHH patients without hormonal therapy history, while the treated group included age- and BMI-matched patients who received hormonal therapy for at least 5 years. In the longitudinal study, 53 IHH patients were included, and their hip and lumber BMD were measured several times during hormonal therapy. We then evaluated the changes in their BMD.
Our cross-sectional study showed that the treated group possessed a significantly higher BMD and Z-score for total hip, femoral neck and lumbar spine (P < 0.001, for all) than the untreated group and the average bone mass even reached the age-matched normal range. The prevalence of low BMD was 80.95% and 11.11% in untreated and treated groups, respectively. In the longitudinal study (n= 53), the BMD of total hip, femoral neck, and lumber spine gradually increased during treatment. The lumber spine showed a greater increment in BMD comparing to total hip and femoral neck (P < 0.05).
Sex hormone therapy improved hip and lumbar spine BMD and Z-score in patients with IHH. Lumbar spine gained a greater BMD increment compared with total hip and femoral neck.
Sex hormone therapy improved hip and lumbar spine BMD and Z-score in patients with IHH. Lumbar spine gained a greater BMD increment compared with total hip and femoral neck.
To provide guidance on quality improvement thresholds for outcomes and complications of image-guided thermal ablation for the treatment of early stage non-small cell lung cancer, recurrent lung cancer, and metastatic disease.
A multidisciplinary writing group conducted a comprehensive literature search to identify studies on the topic of interest. Data was extracted from relevant studies and thresholds were derived from a calculation of two standard deviations from the weighted mean of each outcome. A modified Delphi technique was used to achieve consensus agreement on the thresholds.
Data from 29 studies, including systematic reviews and meta-analysis, retrospective cohort studies, and single-arm trials were extracted for calculation of the thresholds. The expert writing group agreed on thresholds for local control, overall survival and adverse events associated with image-guided thermal ablation.
SIR recommends utilizing the indicator thresholds to review and assess the efficacy of ongoing quality improvement programs. AOA hemihydrochloride research buy When performance falls above or below specific thresholds, consideration of a review of policies and procedures to assess for potential causes, and to implement changes in practices, may be warranted.
SIR recommends utilizing the indicator thresholds to review and assess the efficacy of ongoing quality improvement programs. When performance falls above or below specific thresholds, consideration of a review of policies and procedures to assess for potential causes, and to implement changes in practices, may be warranted.
One of the most commonly used tools to measure fatigue is the Multidimensional Fatigue Inventory (MFI). Studies into the scale structure of the MFI show discrepant findings. The objective of this study was to investigate the scale structure of the MFI in the general Dutch population.
Using data from a Dutch probability-based internet panel (n=2512), the original 5-factor model, a 4-factor, and a 5- and 4-bifactor model of the MFI were tested with confirmatory factor analyses. Additional models were investigated using exploratory factor analysis.
Results neither confirmed a 5-factor (RMSEA = 0.120, CFI=0.933, TLI=0.920) nor a 4-factor model (RMSEA=0.122, CFI=0.928, TLI=0.917). The two bi-factor models also showed a poor fit (bi-4-factor RMSEA=0.151, CFI=0.895, TLI=0.873; bi-5-factor RMSEA=0.153, CFI=0.894, TLI=0.871). Exploratory factor analysis did not support an alternative model, but seemed to show robustness in the loading of the original general fatigue items.
Our results did not provide empirical support for a four or five (bi-)factor structure of the MFI, nor for an alternative model. The most reliable scale of the MFI seems to be the general fatigue scale that could be used as a general indicator of fatigue.
Our results did not provide empirical support for a four or five (bi-)factor structure of the MFI, nor for an alternative model. The most reliable scale of the MFI seems to be the general fatigue scale that could be used as a general indicator of fatigue.
To examine the proposition that identical summary statistics (mean and/or SD) in different randomized controlled trials (RCT) or clinical cohorts can be explained by common or homogeneous source populations.
We estimated the probability of identical summary data in studies with high proportions of identical summary statistics, in simulations, and in control datasets.
The probability of both an identical mean and an identical SD for a variable in separate RCT is low (<~3%), unless the variable is rounded to 1 significant figure. In two RCT with identical summary statistics for 16 of 39 shared variables, simulations indicated the probability of the observed matches was <1 in 100,000. In 34 clinical cohorts with publication integrity concerns, the proportion of summary statistics from variables reported in ≥10 studies that were identical in ≥2 cohorts were high (42% for means, 52% for SD, and 29% for both), and improbable based on simulations and comparisons to control datasets.
The likelihood of multiple identical summary statistics within an individual RCT or across a body of RCT or cohort studies by the same research group is low, especially when both the mean, and the SD are identical, unless the variables are rounded to 1 significant figure.
The likelihood of multiple identical summary statistics within an individual RCT or across a body of RCT or cohort studies by the same research group is low, especially when both the mean, and the SD are identical, unless the variables are rounded to 1 significant figure.