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Sökning: WFRF:(Lydersen Stian)

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1.
  • Aam, Stina, et al. (författare)
  • The Impact of Vascular Risk Factors on Post-stroke Cognitive Impairment : The Nor-COAST Study
  • 2021
  • Ingår i: Frontiers in Neurology. - : Frontiers Media S.A.. - 1664-2295. ; 12
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Post-stroke cognitive impairment (PSCI) is common, but evidence on the impact of vascular risk factors is lacking. We explored the association between pre-stroke vascular risk factors and PSCI and studied the course of PSCI.Materials and Methods: Vascular risk factors were collected at baseline in stroke survivors (n = 635). Cognitive assessments of attention, executive function, memory, language, and the Montreal Cognitive Assessment (MoCA) were performed at 3 and/or 18 months post-stroke. Stroke severity was assessed with the National Institutes of Health Stroke Scale (NIHSS). PSCI was measured with global z; MoCA z-score; and z-score of the four assessed cognitive domains. Mixed-effect linear regression was applied with global z, MoCA z-score, and z-scores of the cognitive domains as dependent variables. Independent variables were the vascular risk factors (hypertension, hypercholesterolemia, smoking, diabetes mellitus, atrial fibrillation, coronary heart disease, previous stroke), time, and the interaction between these. The analyses were adjusted for age, education, and sex. There were between 5 and 25% missing data for the variables for PSCI.Results: Mean age was 71.6 years (SD 11.7); 42% were females; and the mean NIHSS score at admittance was 3.8 (SD 4.8). Regardless of vascular risk factors, global z, MoCA, and all the assessed cognitive domains were impaired at 3 and 18 months, with MoCA being the most severely impaired. Atrial fibrillation (AF) was associated with poorer language at 18 months and coronary heart disease (CHD) with poorer MoCA at 18 months (LR =12.80, p = 0.002, and LR = 8.32, p = 0.004, respectively). Previous stroke was associated with poorer global z and attention at 3 and 18 months (LR = 15.46, p < 0.001, and LR = 16.20, p < 0.001). In patients without AF, attention improved from 3 to 18 months, and in patients without CHD, executive function improved from 3 to 18 months (LR = 10.42, p < 0.001, and LR = 9.33, p = 0.009, respectively).Discussion: Our findings indicate that a focal stroke lesion might be related to pathophysiological processes leading to global cognitive impairment. The poorer prognosis of PSCI in patients with vascular risk factors emphasizes the need for further research on complex vascular risk factor interventions to prevent PSCI.
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2.
  • Aanondsen, Chris Margaret, et al. (författare)
  • Psychometric properties of the Inventory of Life Quality in children and adolescents in Norwegian Sign Language
  • 2021
  • Ingår i: BMC psychology. - : Springer Science and Business Media LLC. - 2050-7283. ; 9:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Several studies have assessed the Quality of Life (QoL) in Deaf and hard-of-hearing (DHH) children and adolescents. The findings from these studies, however, vary from DHH children reporting lower QoL than their typically hearing (TH) peers to similar QoL and even higher QoL. These differences have been attributed to contextual and individual factors such as degree of access to communication, the participants’ age as well as measurement error. Using written instead of sign language measures has been shown to underestimate mental health symptoms in DHH children and adolescents. It is expected that translating generic QoL measures into sign language will help gain more accurate reports from DHH children and adolescents, thus eliminating one of the sources for the observed differences in research conclusions. Hence, the aim of the current study is to translate the Inventory of Life Quality in Children and Adolescents into Norwegian Sign Language (ILC-NSL) and to evaluate the psychometric properties of the self-report of the ILC-NSL and the written Norwegian version (ILC-NOR) for DHH children and adolescents. The parent report was included for comparison. Associations between child self-report and parent-report are also provided. Methods: Fifty-six DHH children completed the ILC-NSL and ILC-NOR in randomized order while their parents completed the parent-report of the ILC-NOR and a questionnaire on hearing- and language-related information. Internal consistency was examined using Dillon-Goldstein’s rho and Cronbach’s alpha, ILC-NSL and ILC-NOR were compared using intraclass correlation coefficients. Construct validity was examined by partial least squares structural equation modeling (PLS-SEM). Results: Regarding reliability, the internal consistency was established as acceptable to good, whereas the comparison of the ILC-NSL with the ILC-NOR demonstrated closer correspondence for the adolescent version of the ILC than for the child version. The construct validity, as evaluated by PLS-SEM, resulted in an acceptable fit for the proposed one-factor model for both language versions for adolescents as well as the complete sample. Conclusion: The reliability and validity of the ILC-NSL seem promising, especially for the adolescent version, even though the validation was based on a small sample of DHH children and adolescents.
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3.
  • Amundstuen Reppe, Linda, et al. (författare)
  • Relationship Between Time Consumption and Quality of Responses to Drug-related Queries: A Study From Seven Drug Information Centers in Scandinavia
  • 2016
  • Ingår i: Clinical Therapeutics. - : ELSEVIER. - 0149-2918 .- 1879-114X. ; 38:7, s. 1738-1749
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: The aims of this study were to assess the quality of responses produced by drug information centers (DICs) in Scandinavia, and to study the association between time consumption processing queries and the quality of the responses. Methods: We posed six identical drug-related queries to seven DICs in Scandinavia, and the time consumption required for processing them was estimated. Clinical pharmacologists (internal experts) and general practitioners (external experts) reviewed responses individually. We used mixed model linear regression analyses to study the associations between time consumption on one hand and the summarized quality scores and the overall impression of the responses on the other hand. Findings: Both expert groups generally assessed the quality of the responses as "satisfactory" to "good." A few responses were criticized for being poorly synthesized and less relevant, of which none were quality-assured using co-signatures. For external experts, an increase in time consumption was statistically significantly associated with a decrease in common quality score (change in score, -0.20 per hour of work; 95% CI, -0.33 to -0.06; P = 0.004), and overall impression (change in score, -0.05 per hour of work; 95% CI, -0.08 to -0.01; P = 0.005). No such associations were found for the internal experts assessment. Implications: To our knowledge, this is the first study of the association between time consumption and quality of responses to drug-related queries in DICs. The quality of responses were in general good, but time consumption and quality were only weakly associated in this setting. (C) 2016 The Authors. Published by Elsevier HS Journals, Inc.
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4.
  • Dhainaut, Alvilde, et al. (författare)
  • Long-term in-vitro precision of direct digital X-ray radiogrammetry
  • 2011
  • Ingår i: Skeletal Radiology. - : Springer Science and Business Media LLC. - 1432-2161 .- 0364-2348. ; 40:12, s. 1575-1579
  • Tidskriftsartikel (refereegranskat)abstract
    • Digital X-ray radiogrammetry (DXR) calculates peripheral bone mineral density (BMD) from hand radiographs. The short-term precision for direct DXR has been reported to be highly satisfactory. However, long-term precision for this method has not been examined. Thus, the aim of this study was to examine the long-term in-vitro precision for the new direct digital version of DXR. The in-vitro precision for direct DXR was tested with cadaver phantoms on four different X-ray systems at baseline, 3 months, 6 months, and in one machine also at 12 months. At each time point, 31 measurements were performed. The in-vitro longitudinal precision for the four radiographic systems ranged from 0.22 to 0.43% expressed as coefficient of variation (CV%). The smallest detectable difference (SDD) ranged from 0.0034 to 0.0054 g/cm(2). The in vitro long-term precision for direct DXR was comparable to the previous reported short-term in-vitro precision for all tested X-ray systems. These data show that DXR is a stable method for detecting small changes in bone density during 6-12 months of follow-up.
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5.
  • Elvrum, Ann-Kristin G, et al. (författare)
  • Bimanual Capacity of Children With Cerebral Palsy: Intra- and Interrater Reliability of a Revised Edition of the Bimanual Fine Motor Function Classification.
  • 2017
  • Ingår i: Physical & occupational therapy in pediatrics. - : Informa UK Limited. - 1541-3144 .- 0194-2638. ; 37:3, s. 239-251
  • Tidskriftsartikel (refereegranskat)abstract
    • To develop a revised edition of the Bimanual Fine Motor Function (BFMF 2), as a classification of fine motor capacity in children with cerebral palsy (CP), and establish intra- and interrater reliability of this edition.The content of the original BFMF was discussed by an expert panel, resulting in a revised edition comprising the original description of the classification levels, but in addition including figures with specific explanatory text. Four professionals classified fine motor function of 79 children (3-17years; 45 boys) who represented all subtypes of CP and Manual Ability Classification levels (I-V). Intra- and inter-rater reliability was assessed using overall intra-class correlation coefficient (ICC), and Cohen's quadratic weighted kappa.The overall ICC was 0.86. Cohen's weighted kappa indicated high intra-rater (кw: >0.90) and inter-rater (кw: >0.85) reliability.The revised BFMF 2 had high intra- and interrater reliability. The classification levels could be determined from short video recordings (<5 minutes), using the figures and precise descriptions of the fine motor function levels included in the BFMF 2. Thus, the BFMF 2 may be a feasible and useful classification of fine motor capacity both in research and in clinical practice.
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6.
  • Elvrum, Ann-Kristin G, et al. (författare)
  • Bimanual Fine Motor Function (BFMF) Classification in Children with Cerebral Palsy: Aspects of Construct and Content Validity.
  • 2016
  • Ingår i: Physical & occupational therapy in pediatrics. - : Informa UK Limited. - 1541-3144 .- 0194-2638. ; 36:1, s. 1-16
  • Tidskriftsartikel (refereegranskat)abstract
    • ABSTRACT The Bimanual Fine Motor Function (BFMF) is currently the principal classification of hand function recorded by the Surveillance of Cerebral Palsy in Europe (SCPE) register. The BFMF is used in a number of epidemiological studies, but has not yet been validated. Aims: To examine aspects of construct and content validity of the BFMF. Methods and Results: Construct validity of the BFMF was assessed by comparison with the Manual Ability Classification System (MACS) using register-based data from 539 children born 1999-2003 (304 boys; 4-12years). The high correlation with the MACS (Spearman's rho = 0.89, CI: 0.86-0.91, p<.001) supports construct validity of the BFMF. The content of the BFMF was appraised through literature review, and by using the ICF-CY as a framework to compare the BFMF and MACS. The items hold, grasp and manipulate were found to be relevant to describe increasingly advanced fine motor abilities in children with CP, but the description of the BFMF does not state whether it is a classification of fine motor capacity or performance. Conclusion: Our results suggest that the BFMF may provide complementary information to the MACS regarding fine motor function and actual use of the hands, particularly if used as a classification of fine motor capacity.
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7.
  • Hollung, Sandra Julsen, et al. (författare)
  • Point prevalence and motor function of children and adolescents with cerebral palsy in Scandinavia and Scotland : a CP-North study
  • 2021
  • Ingår i: Developmental Medicine and Child Neurology. - : Wiley. - 0012-1622 .- 1469-8749. ; 63:6, s. 721-728
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To describe the point prevalence of cerebral palsy (CP) and distribution of gross and fine motor function in individuals registered in a CP-North surveillance programme.METHOD: Aggregate data of individuals with CP aged 6 to 19 years, sex, CP subtype, and gross and fine motor function levels were collected from each programme. Overall and age-specific point prevalence of CP was calculated for each programme using 95% confidence intervals. Logistic regression was used to estimate prevalence and CP subtypes with age as the covariate variable. Pearson χ2 tests were used to compare the distributions of CP subtypes, Gross Motor Function Classification System (GMFCS) levels, and Manual Ability Classification System (MACS) levels by age and between programmes.RESULTS: Among 3 759 138 individuals residing in Scandinavia and Scotland, 8278 had a diagnosis of CP (57-59% were males). The overall point prevalence of CP ranged from 2.13 to 2.32 per 1000 residents. Age-specific prevalence in each programme varied with the exception of Denmark. While the proportions of bilateral spastic CP were similar between programmes, there were variations in all other CP subtypes and in GMFCS and MACS levels.INTERPRETATION: While the results of this study may reflect real differences in CP populations between countries, they may not be clinically relevant. The variations may be attributable to differences in the year when each programme was first established, different data collection methods, and country-specific governmental policies.
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8.
  • Talabani, Aras Jamal, et al. (författare)
  • Risk factors of admission for acute colonic diverticulitis in a population-based cohort study : the HUNT Study, Norway
  • 2016
  • Ingår i: World Journal of Gastroenterology. - Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery. - 2219-2840 .- 1007-9327.
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To assess risk factors of hospital admission for acute colonic diverticulitis. METHODS: The study was conducted as part of the second wave of the population-based North Trondelag Health Study (HUNT2), performed in North Trondelag County, Norway, 1995 to 1997. The study consisted of 42570 participants (65.1% from HUNT2) who were followed up from 1998 to 2012. Of these, 22436 (52.7%) were females. The cases were defined as those 358 participants admitted with acute colonic diverticulitis during follow-up. The remaining participants were used as controls. Univariable and multivariable Cox regression analyses was used for each sex separately after multiple imputation to calculate HR. RESULTS: Multivariable Cox regression analyses showed that increasing age increased the risk of admission for acute colonic diverticulitis: Comparing with ages < 50 years, females with age 50-70 years had HR = 3.42, P < 0.001 and age > 70 years, HR = 6.19, P < 0.001. In males the corresponding values were HR = 1.85, P = 0.004 and 2.56, P < 0.001. In patients with obesity (body mass index ≥ 30) the HR = 2.06, P < 0.001 in females and HR = 2.58, P < 0.001 in males. In females, present (HR = 2.11, P < 0.001) or previous (HR = 1.65, P = 0.007) cigarette smoking increased the risk of admission. In males, breathlessness (HR = 2.57, P < 0.001) and living in rural areas (HR = 1.74, P = 0.007) increased the risk. Level of education, physical activity, constipation and type of bread eaten showed no association with admission for acute colonic diverticulitis. CONCLUSION: The risk of hospital admission for acute colonic diverticulitis increased with increasing age, in obese individuals, in ever cigarette smoking females and in males living in rural areas.
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9.
  • Talseth, Arne, et al. (författare)
  • Quality of life and psychological and gastrointestinal symptoms after cholecystectomy : a population-based cohort study
  • 2017
  • Ingår i: BMJ Open Gastroenterology. - Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery. - 2054-4774.
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The study aims to examine gastrointestinal symptoms, quality of life and the risk of psychological symptoms after cholecystectomy. DESIGN: This is a prospective population-based cohort study based on the Nord-Trondelag Health Study (HUNT) Norway. HUNT is a repeated health survey of the county population and includes a wide range of health-related items. In the present study, all 3 HUNT surveys were included, performed between 1984 and 2008. Selected items were scores on quality of life, the Hospital Anxiety and Depression Scale (HADS) and selected gastrointestinal symptoms. Participants who underwent cholecystectomy for gallstone disease between 1 January 1990 and until 1 year before attending HUNT3 were compared with the remaining non-operated cohort. Associations between cholecystectomy and the postoperative scores and symptoms were assessed by multivariable regression models. RESULTS: Participants in HUNT1, HUNT2 and HUNT3 were 77 212 (89.4% of those invited), 65 237 (69.5%) and 50 807 (54.1%), respectively. In the study period, 931 participants were operated with cholecystectomy. Cholecystectomy was associated with an increased risk of diarrhoea and stomach pain postoperatively. In addition, cholecystectomy was associated with an increased risk of nausea postoperatively in men. We found no associations between cholecystectomy and quality of life, symptoms of anxiety and depression, constipation, heartburn, or acid regurgitation following surgery. CONCLUSIONS: In this large population-based cohort study, cholecystectomy was associated with postoperative diarrhoea and stomach pain. Cholecystectomy for gallstone colic was associated with nausea in men. There were no associations between quality of life, symptoms of anxiety and depression, constipation, heartburn, or acid regurgitation.
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10.
  • Thoresen, Lene, et al. (författare)
  • Nutritional status, cachexia and survival in patients with advanced colorectal carcinoma. Different assessment criteria for nutritional status provide unequal results
  • 2013
  • Ingår i: Clinical Nutrition. - : Elsevier. - 0261-5614 .- 1532-1983. ; 32:1, s. 65-72
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and aims: Different nutrition assessment tools and definitions are proposed for cancer-associated malnutrition and wasting (cachexia). We studied the associations between these assessments and overall survival in stage IV colorectal carcinoma patients. Methods: Anthropometric measures, energy intake, biochemical variables, nutritional risk screening, assessment of malnutrition, cachexia and body composition from computed tomography images were analysed, in 77 patients from Norway and Canada. Results were dichotomized into presence or absence of nutritional risk, malnutrition, cachexia and sarcopenia (low muscle mass) and associated with survival. Results: Overall, 22% up to 55% of the patients had cachexia according to different cachexia criteria: 34% were malnourished, 42% were at nutritional risk, and 39% were sarcopenic. Forty-four percent of the patients did not meet criteria for any of these conditions. Patients with cachexia defined by Cancer Cachexia Study Group (CCSG) had shorter survival in an unadjusted analysis, [Hazard ratio (HR) = 2.43; 95% confidence interval (CI) 1.32-4.47; P = 0.005]. After adjusting for nation, age and gender, cachexia (HR = 2.26; CI 1.18-432; P = 0.014) and malnutrition (HR = 1.83; CI 1.06-3.13; P = 0.029) remained significant predictors of survival. Conclusions: Nutritional depletion in up to 55% of the patients was found. The lack of concordance between the results obtained by different assessment criteria was obvious. CCSGs cachexia score was the best prognostic factor for overall survival.
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