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Träfflista för sökning "WFRF:(Holmqvist Björn) "

Sökning: WFRF:(Holmqvist Björn)

  • Resultat 1-10 av 31
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1.
  • Thorslund, Birgitta, 1976-, et al. (författare)
  • Hearing loss and a supportive tactile signal in a navigation system : Effects on driving behavior and eye movements
  • 2013
  • Ingår i: Journal of Eye Movement Research. - : INT GROUP EYE MOVEMENT RESEARCH. - 1995-8692. ; 6:5, s. 1-9
  • Tidskriftsartikel (refereegranskat)abstract
    • An on-road study was conducted to evaluate a complementary tactile navigation signal on driving behaviour and eye movements for drivers with hearing loss (HL) compared to drivers with normal hearing (NH). 32 participants (16 HL and 16 NH) performed two preprogrammed navigation tasks. In one, participants received only visual information, while the other also included a vibration in the seat to guide them in the correct direction. SMI glasses were used for eye tracking, recording the point of gaze within the scene. Analysis was performed on predefined regions. A questionnaire examined participant's experience of the navigation systems. Hearing loss was associated with lower speed, higher satisfaction with the tactile signal and more glances in the rear view mirror. Additionally, tactile support led to less time spent viewing the navigation display. 
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  • Falkenström, Fredrik, et al. (författare)
  • Can psychotherapists function as their own controls? Meta-analysis of the crossed therapist design in comparative psychotherapy trials
  • 2013
  • Ingår i: Journal of Clinical Psychiatry. - : Physicians Postgraduate Press. - 0160-6689 .- 1555-2101. ; 74:5, s. 482-491
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE:Clinical trials sometimes have the same therapists deliver more than 1 psychotherapy, ostensibly to control for therapist effects. This "crossed therapist" design makes controlling for therapist allegiance imperative, as therapists may prefer one treatment they deliver to the other(s). Research has established a strong relationship between principal investigators' allegiances and treatment outcome. Study therapists' allegiances probably also influence outcome, yet this moderating factor on outcome has never been studied.DATA SOURCES:English language abstracts in PsycINFO and MEDLINE from January 1985 to December 2011 were searched for keywords psychotherapy and randomized trial.STUDY SELECTION:The search yielded 990 abstracts that were searched manually. Trials using the same therapists in more than 1 condition were included.DATA EXTRACTION:Thirty-nine studies fulfilled inclusion criteria. Meta-regression analyses assessed the influence of researchers' allegiance on treatment outcome, testing the hypothesis that studies poorly controlling for therapist allegiance would show stronger influence of researcher allegiance on outcome. A single-item measure assessed researchers' reported attempts to control for therapist allegiance.RESULTS:Only 1 of 39 studies (3%) measured therapist treatment allegiance. Another 5 (13%) mentioned controlling for, without formally assessing, therapist allegiance. Most publications (67%) did not even mention therapist allegiance. In studies not controlling for therapist allegiance, researcher allegiance strongly influenced outcome, whereas studies reporting control for therapist allegiance showed no differential researcher allegiance. Researchers with cognitive-behavioral therapy allegiance described controlling for therapist allegiance less frequently than other researchers.CONCLUSIONS:The crossed therapist design is subject to bias due to differential psychotherapist allegiance. Worrisome results suggest that researchers strongly allied to a treatment may ignore therapist allegiance, potentially skewing outcomes. All clinical trials, and especially crossed therapist designs, should measure psychotherapist allegiance to evaluate this possible bias.
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5.
  • Holmqvist, Lina, et al. (författare)
  • Cardiovascular outcome in treatment-resistant hypertension: results from the Swedish Primary Care Cardiovascular Database (SPCCD).
  • 2018
  • Ingår i: Journal of hypertension. - 1473-5598. ; 36:2, s. 402-409
  • Tidskriftsartikel (refereegranskat)abstract
    • To assess cardiovascular outcome in patients with treatment-resistant hypertension (TRH) compared with patients with nontreatment-resistant hypertension (HTN).Cohort study with data from 2006 to 2012 derived from the Swedish Primary Care Cardiovascular Database with hypertensive patients aged at least 30 years. TRH was defined as blood pressure at least 140/90 mmHg despite medication adherence to three or more dispensed antihypertensive drug classes. Patients with cardiovascular comorbidity were excluded. The association between TRH and cardiovascular events with adjustment for important confounders was analyzed.We included 4317 TRH patients and 32 282 HTN patients. TRH patients (61% women) were older (70 vs. 66 years), had higher SBP (152 vs. 141 mmHg) and more diabetes (30 vs. 20%) (P < 0.001 for all) compared with HTN patients. Mean follow-up time was 4.3 years. In the adjusted analysis, TRH patients had an increased risk for total mortality [hazard ratio 1.12; 95% confidence interval (CI), 1.03-1.23], cardiovascular mortality (hazard ratio 1.20; 95% CI, 1.03-1.40) and incident heart failure (hazard ratio 1.34; 95% CI, 1.17-1.54) but not for incident stroke (hazard ratio 1.03; 95% CI, 0.90-1.19) or transitoric ischemic attack (hazard ratio 1.12; 95% CI, 0.86-1.46) compared with HTN patients.Patients with TRH have a poor prognosis beyond blood pressure level, compared with hypertensive patients without TRH. In particular, the high risk for heart failure is of clinical importance and merits further investigation.
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  • Holmqvist, Lina, et al. (författare)
  • Prevalence of treatment-resistant hypertension and important associated factors—results from the Swedish Primary Care Cardiovascular Database
  • 2016
  • Ingår i: Journal of the American Society of Hypertension. - 1933-1711 .- 1878-7436. ; 10:11, s. 838-846
  • Tidskriftsartikel (refereegranskat)abstract
    • © 2016 American Society of HypertensionWe aimed to describe the prevalence, treatment, and associated comorbidity of treatment-resistant hypertension (TRH). This registry-based cohort study from The Swedish Primary Care Cardiovascular Database assessed 53,090 hypertensive patients attending primary care. Patients adherent to antihypertensive treatment measured by pharmacy fills and with proportion of days covered ≥80% were included. The prevalence of TRH was 17% when considering all current TRH definitions. Adherence to mineralocorticoid receptor antagonists differed between TRH- and non-TRH patients (8 vs. 4%). Higher frequencies (prevalence ratio and 95% confidence intervals) of diabetes mellitus (1.59, 1.53–1.66), heart failure (1.55, 1.48–1.64), atrial fibrillation (1.33, 1.27–1.40), ischemic heart disease (1.25, 1.20–1.30), and chronic kidney disease (1.38, 1.23–1.54) were seen in patients with TRH compared to patients without TRH. These findings, in a population with valid data on medication adherence, emphasize a broad preventive approach for these high-risk patients.
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  • Holmqvist, Rolf, et al. (författare)
  • Developing practice-based evidence : Benefits, challenges, and tensions
  • 2015
  • Ingår i: Psychotherapy Research. - : Routledge. - 1050-3307 .- 1468-4381. ; 25:1, s. 20-31
  • Tidskriftsartikel (refereegranskat)abstract
    • Attempts to regulate service delivery in line with results from randomized trials have been vigorously debated. In this paper, results from practice-based studies using the CORE System illustrate the potential to enrich knowledge about the actual outcome of psychological therapy in routine care. These studies also provide data for important questions in psychotherapy research, like orientation differences, the importance of the therapist factor, number of sessions needed for clinical effect, and the alliance-outcome question. Obstacles and challenges in making such studies are illustrated. In conclusion, arguments are put forward for introducing a common measurement system that strikes a balance between clinicians' questions and the need for comparable data, and that encompasses the complexities of patients' reasons for seeking psychological help.
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8.
  • Bigelow, NH, et al. (författare)
  • Climate change and Arctic ecosystems: 1. Vegetation changes north of 55 degrees N between the last glacial maximum, mid-Holocene, and present
  • 2003
  • Ingår i: Journal of Geophysical Research. - : Wiley-Blackwell. - 2156-2202. ; 108:D19
  • Forskningsöversikt (refereegranskat)abstract
    • [1] A unified scheme to assign pollen samples to vegetation types was used to reconstruct vegetation patterns north of 55degreesN at the last glacial maximum (LGM) and mid-Holocene (6000 years B. P.). The pollen data set assembled for this purpose represents a comprehensive compilation based on the work of many projects and research groups. Five tundra types (cushion forb tundra, graminoid and forb tundra, prostrate dwarf-shrub tundra, erect dwarf-shrub tundra, and low- and high-shrub tundra) were distinguished and mapped on the basis of modern pollen surface samples. The tundra-forest boundary and the distributions of boreal and temperate forest types today were realistically reconstructed. During the mid-Holocene the tundra-forest boundary was north of its present position in some regions, but the pattern of this shift was strongly asymmetrical around the pole, with the largest northward shift in central Siberia (similar to200 km), little change in Beringia, and a southward shift in Keewatin and Labrador (similar to200 km). Low- and high-shrub tundra extended farther north than today. At the LGM, forests were absent from high latitudes. Graminoid and forb tundra abutted on temperate steppe in northwestern Eurasia while prostrate dwarf-shrub, erect dwarf-shrub, and graminoid and forb tundra formed a mosaic in Beringia. Graminoid and forb tundra is restricted today and does not form a large continuous biome, but the pollen data show that it was far more extensive at the LGM, while low- and high-shrub tundra were greatly reduced, illustrating the potential for climate change to dramatically alter the relative areas occupied by different vegetation types.
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  • Breidegard, Björn, et al. (författare)
  • Enlightened: The art of finger reading
  • 2008
  • Ingår i: Studia Linguistica. - : Wiley-Blackwell. - 1467-9582 .- 0039-3193. ; 62:3, s. 249-260
  • Tidskriftsartikel (refereegranskat)abstract
    • For some forty years the eye-tracking technology has facilitated the study of eye movement patterns for sighted people during reading and other visual activities. Today – a newly developed automatic finger tracking system makes it possible to reconstruct blind people’s tactile reading in real time and to automatically analyze finger movements during Braille text reading and tactile picture recognition. In this case study, the very first automatic finger tracking system is presented together with results indicating how Braille readers can increase awareness of their own reading styles. This opens up for future Braille education to become more evidence-based and, at the same time, for a new research field: contrastive studies of language in its auditory, visual and tactile manifestations.
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