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Träfflista för sökning "WFRF:(Törnkvist Birgitta) srt2:(2005-2009)"

Sökning: WFRF:(Törnkvist Birgitta) > (2005-2009)

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1.
  • Håglin, Lena, et al. (författare)
  • Prediction of all-cause mortality in a patient population with hypertension and type 2 DM by using traditional risk factors and serum-phosphate, -calcium and -magnesium.
  • 2007
  • Ingår i: Acta Biabetologica. - : Springer Science and Business Media LLC. - 0940-5429 .- 1432-5233. ; 44:3
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study is to investigate whether the prediction of all-cause mortality from traditional risk factors is improved by adding electrolytes (serum-phosphate (S-P), serum-calcium (S-Ca) and serum-magnesium (S-Mg)) in a Cox regression. The study uses an 18-year follow-up of patients (n=2504) referred by physicians in primary health care and hospitals to the Vindeln Patient Education (VPE) Center, mainly with a diagnosis of hypertension (HT), type 2 diabetes mellitus (DM) and/or obesity.Cox regression, with the latest registered value and baseline values for risk factors, was used to study all-cause mortality in men and women. 221 out of 1096 men and 157 out of 1408 women died during the 18-year follow-up (20% and 11% respectively). The Cox regression analysis reveals that high blood glucose (B-Glu) and low S-Mg were significantly associated with increased all-cause mortality in the whole patient population as well as in men and women separately. Among women, type 2 DM and systolic blood pressure (SBP) and among men, high S-Ca, S-P, S-urate and body mass index (BMI) were the main predictors of all-cause mortality. There is significantly improved prediction of all-cause mortality with electrolytes added to the traditional risk factors. High B-Glu and low S-Mg in both men and women, and high S-Ca and S-P in men, are significantly associated with all-cause mortality. The metabolic disturbance in this high-risk group of patients can be more fully understood if ionic imbalance is included in the prediction of mortatlity.
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2.
  • Törnkvist, Birgitta, et al. (författare)
  • Validity issues concerning repeated test taking of the SweSAT
  • 2006
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • The main purpose of this study is to integrate and discuss results from studies that focus on the effects of repeated test taking of the Swe-SAT. Messick’s four-faceted model of validity is used as an integrating and an analytic tool. Another purpose is to use results from supplementary education as a reference in this integration.The summarized conclusion is that the existing rule concerning repeated test taking for the Swedish Scholastic Assessment Test (Swe-SAT) is relevant. It is relevant as the test taker has a chance to obtain a good estimate of his or her knowledge and ability. The unintended social consequences are reduced if actions are taken to motivate test takers to repeat the test.The conclusion is quite the opposite for supplementary education. Achange in the rule that eliminates the usage of supplementary grades in the selection procedure will result in higher validity.The conclusion is also that the Messick model is a very useful tool for validation. When applying the Messick model, the aim and the direction of the process of validation will be systemized and optimized as well as nuanced.
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  • Resultat 1-2 av 2
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rapport (1)
tidskriftsartikel (1)
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övrigt vetenskapligt/konstnärligt (1)
refereegranskat (1)
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Törnkvist, Birgitta (2)
Håglin, Lena (1)
Henriksson, Widar (1)
Backman, Lennart (1)
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Umeå universitet (2)
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