Published in 2015

Ultrasound as an Outcome Measure in Gout. A Validation Process by the OMERACT Ultrasound Working Group

Terslev, L., Gutierrez, M., Schmidt, W. A., Keen, H. I., Filippucci, E., Kane, D., Thiele, R., Kaeley, G., Balint, P., Mandl, P., Delle Sedie, A., Hammer, H. B., Christensen, R., Möller, I., Pineda, C., Kissin, E., Bruyn, G. A., Iagnocco, A., Naredo, E., D'Agostino, M. A., & 1 flereOMERACT Ultrasound Working Group, nov. 2015, I: Journal of Rheumatology. 42, 11, s. 2177-81 5 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

OBJECTIVE: To summarize the work performed by the Outcome Measures in Rheumatology (OMERACT) Ultrasound (US) Working Group on the validation of US as a potential outcome measure in gout.

METHODS: Based on the lack of definitions, highlighted in a recent literature review on US as an outcome tool in gout, a series of iterative exercises were carried out to obtain consensus-based definitions on US elementary components in gout using a Delphi exercise and subsequently testing these definitions in static images and in patients with proven gout. Cohen's κ was used to test agreement, and values of 0-0.20 were considered poor, 0.20-0.40 fair, 0.40-0.60 moderate, 0.60-0.80 good, and 0.80-1 excellent.

RESULTS: With an agreement of > 80%, consensus-based definitions were obtained for the 4 elementary lesions highlighted in the literature review: tophi, aggregates, erosions, and double contour (DC). In static images interobserver reliability ranged from moderate to almost perfect, and similar results were found for the intrareader reliability. In patients the intraobserver agreement was good for all lesions except DC (moderate). The interobserver agreement was poor for aggregates and DC but moderate for the other components.

CONCLUSION: These first steps in evaluating the validity of US as an outcome measure for gout show that the reliability of the definitions ranged from moderate to excellent in static images and somewhat lower in patients, indicating that a standardized scanning technique may be needed, before testing the responsiveness of those definitions in a composite US score.

Originalsprog Engelsk
Tidsskrift Journal of Rheumatology
Vol/bind 42
Udgave nummer 11
Sider (fra-til) 2177-81
Antal sider 5
ISSN 0315-162X
DOI
Status Udgivet - nov. 2015

Objective. To validate the agreement between the 28-joint disease activity score based on erythrocyte sedimentation rate (DAS28-ESR) and the 28-joint disease activity score based on C-reactive protein (DAS28-CRP) in a group of Danish patients with rheumatoid arthritis (RA). Methods. Data from 109 Danish RA patients initiating biologic treatment were analysed at baseline and following one year of treatment. Participants were retrospectively enrolled from a previous cohort study and were considered eligible for this project if CRP and ESR were measured at baseline and at the follow-up visit. To assess the extent of agreement between the two DAS28 definitions, the "European League Against Rheumatism" (EULAR) response criteria based on each definition were calculated with cross-classification. Weighted Kappa (κ) coefficients were calculated, and Bland-Altman plots were used to illustrate degree of agreement between DAS28 definitions. Results. The 75 eligible patients were classified as EULAR good, moderate, and nonresponders with good agreement (61/75; 81%) between DAS28-CRP and DAS28-ESR (κ = 0.75 (95% CI: 0.63 to 0.88)). Conclusions. According to our findings, DAS28-CRP and DAS28-ESR are interchangeable when assessing RA patients and the two versions of DAS28 are comparable between studies.

Originalsprog Engelsk
Tidsskrift Arthritis
Vol/bind 2015
Sider (fra-til) 401690
ISSN 2090-1984
DOI
Status Udgivet - 2015

Validity of ankylosing spondylitis and undifferentiated spondyloarthritis diagnoses in the Swedish National Patient Register

Lindström, U., Exarchou, S., Sigurdardottir, V., Sundström, B., Askling, J., Eriksson, J. K., Forsblad-d'Elia, H., Turesson, C., Kristensen, L. E. & Jacobsson, L., okt. 2015, I: Scandinavian Journal of Rheumatology. 44, 5, s. 369-76 8 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

OBJECTIVES: Epidemiological studies of spondyloarthritis (SpA), using ICD codes from the Swedish National Patient Register (NPR), offer unique possibilities but hinge upon an understanding of the validity of the codes. The aim of this study was to validate the ICD codes for ankylosing spondylitis (AS) and undifferentiated SpA (uSpA) in the NPR against the established classification criteria [modified New York (mNY), Assessment of SpondyloArthritis international Society (ASAS), Amor, and European Spondyloarthropathy Study Group (ESSG) criteria].

METHOD: All patients with an ICD-8/9/10 code of AS or uSpA in the NPR 1966-2009 at a visit to a specialist in rheumatology or internal medicine or corresponding hospitalization, alive and living in Sweden 2009, were identified (n = 20 089). Following a structured procedure to achieve geographical representativeness, 500 random patients with a diagnosis of AS or uSpA in 2007-2009 were selected. Based on a structured review of clinical records, positive predictive values (PPVs) for fulfilling the criteria sets were calculated.

RESULTS: For those having received an ICD code for AS, the PPVs for fulfilling the mNY criteria or any set of SpA criteria were 70% and 89%, respectively. For those with an uSpA diagnosis (and never an AS diagnosis), the corresponding PPVs were 20% and 79%. The subset with both AS and uSpA diagnoses (overlap = 12%) were as likely to fulfil the mNY criteria as the group that had been coded as AS only.

CONCLUSIONS: The diagnosis codes for AS or uSpA had high PPVs, suggesting that our case identification in the Swedish NPR can be used for nationwide, population-based, epidemiological studies of these diseases.

Originalsprog Engelsk
Tidsskrift Scandinavian Journal of Rheumatology
Vol/bind 44
Udgave nummer 5
Sider (fra-til) 369-76
Antal sider 8
ISSN 0300-9742
DOI
Status Udgivet - okt. 2015

Work Disability in Early Systemic Sclerosis: A Longitudinal Population-based Cohort Study

Sandqvist, G., Hesselstrand, R., Petersson, I. F. & Kristensen, L. E., okt. 2015, I: Journal of Rheumatology. 42, 10, s. 1794-800 7 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

OBJECTIVE: To study work disability (WD) with reference to levels of sick leave and disability pension in early systemic sclerosis (SSc).

METHODS: Patients with SSc living in the southern part of Sweden with onset of their first non-Raynaud symptom between 2003 and 2009 and with a followup of 36 months were included in a longitudinal study. Thirty-two patients (26 women, 24 with limited SSc) with a median age of 47.5 years (interquartile range 43-53) were identified. WD was calculated in 30-day intervals from 12 months prior to disease onset until 36 months after, presented as the prevalence of WD per year (0-3) and as the period prevalence of mean net days per month (± SD). Comparisons were made between patients with different disease severity and sociodemographic characteristics, and between patients and a reference group (RG) from the general population.

RESULTS: Seventy-eight percent had no WD 1 year prior to disease onset, which decreased to 47% after 3 years. The relative risk for WD in patients with SSc compared with RG was 0.95 (95% CI 0.39-2.33) at diagnosis, and increased to 2.41 (1.28-4.55) after 3 years. There were no significant correlations between WD and disease severity, but between WD and years at workplace (rs = -0.72; p = 0.002), education (rs = -0.51; p = 0.004), and sickness absence the month before disease onset (rs = 0.58; p = 0.001), respectively.

CONCLUSION: Considerable increase in WD was noted 3 years after disease onset. Limited education, fewer years at workplace, and sickness absence before disease onset may be risk factors for sustained WD.

Originalsprog Engelsk
Tidsskrift Journal of Rheumatology
Vol/bind 42
Udgave nummer 10
Sider (fra-til) 1794-800
Antal sider 7
ISSN 0315-162X
DOI
Status Udgivet - okt. 2015

Published in 2014

Anti-nuclear antibodies (ANA) have traditionally been evaluated using indirect fluorescence assays (IFA) with HEp-2 cells. Quantitative immunoassays (EIA) have replaced the use of HEp-2 cells in some laboratories. Here, we evaluated ANA in 400 consecutive and unselected routinely referred patients using IFA and automated EIA techniques. The IFA results generated by two independent laboratories were compared with the EIA results from antibodies against double-stranded DNA (dsDNA), from ANA screening, and from tests of the seven included subantigens. The final IFA and EIA results for 386 unique patients were compared. The majority of the results were the same between the two methods (n = 325, 84%); however, 8% (n = 30) yielded equivocal results (equivocal-negative and equivocal-positive) and 8% (n = 31) yielded divergent results (positive-negative). The results showed fairly good agreement, with Cohen's kappa value of 0.30 (95% confidence interval (CI) = 0.14-0.46), which decreased to 0.23 (95% CI = 0.06-0.40) when the results for dsDNA were omitted. The EIA method was less reliable for assessing nuclear and speckled reactivity patterns, whereas the IFA method presented difficulties detecting dsDNA and Ro activity. The automated EIA method was performed in a similar way to the conventional IFA method using HEp-2 cells; thus, automated EIA may be used as a screening test.

Originalsprog Engelsk
Tidsskrift Autoimmune Diseases
Vol/bind 2014
Sider (fra-til) 534759
ISSN 2090-0422
DOI
Status Udgivet - 2014

A dynamic contrast enhanced MRI quantification method for objective assessment of treatment response in patients with inflammatory arthritis.

Kubassova, O. A., Boesen, M., Østergaard, M., Bliddal, H., Cimmino, M. A., Axelsen, M. B., Poggenborg, R. P., Bouert, R., Rastogi, A., Tzaribachev, N., Hinton, M. & Taylor, P. C., 2014, I: Radiographics : a review publication of the Radiological Society of North America, Inc.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

Originalsprog Engelsk
Tidsskrift Radiographics : a review publication of the Radiological Society of North America, Inc
ISSN 0271-5333
Status Udgivet - 2014

A gluten-free diet lowers NKG2D and ligand expression in BALB/c and non-obese dfiabetic (NOD) mice

Adlercreutz, E. H., Weile, C. R. A., Larsen, J., Engkilde, K., Agardh, D., Buschard, K. S. & Antvorskov, J. C., 2014, I: Clinical and Experimental Immunology. 177, 2, s. 391-403 doi.10.1111/cei.12340.PMID:24673402.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

BACKGROUND: Disease management programmes have been developed for chronic obstructive pulmonary disease (COPD) to facilitate the integration of care across healthcare settings. The purpose of the present study was to examine the experiences of COPD patients and their relatives of integrated care after implementation of a COPD disease management programme.

METHODS: Seven focus groups and five individual interviews were held with 34 patients with severe or very severe COPD and two focus groups were held with eight of their relatives. Data were analysed using inductive content analysis.

RESULTS: Four main categories of experiences of integrated care emerged: 1) a flexible system that provides access to appropriate healthcare and social services and furthers patient involvement; 2) the responsibility of health professionals to both take the initiative and follow up; 3) communication and providing information to patients and relatives; 4) coordination and professional cooperation. Most patients were satisfied with their care and raised few criticisms. However, patients with more unstable and severe disease tended to experience more problems.

CONCLUSIONS: Participant suggestions for optimizing the integration of healthcare included assigning patients a care coordinator, telehealth solutions for housebound patients and better information technology to support interprofessional cooperation. Further studies are needed to explore these and other possible solutions to problems with integrated care among COPD patients. A future effort in this field should be informed by detailed knowledge of the extent and relative importance of the identified problems. It should also be designed to address variable levels of severity of COPD and relevant comorbidities and to deliver care in ways appropriate to the respective healthcare setting. Future studies should also take health professionals' views into account so that interventions may be planned in the light of the experiences of all those involved in the treatment of COPD patients.

Originalsprog Engelsk
Tidsskrift B M C Health Services Research
Vol/bind 14
Sider (fra-til) 471
ISSN 1472-6963
DOI
Status Udgivet - 2014

A three-day course can increase knowledge and interest in disaster medicine for medical students

Rubin, M. A., Viggers, S. R., Ballegaard, C. & Bæk, N. H., 2014, I: Europe PMC. 31, s. 213 1 s.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

Originalsprog Engelsk
Tidsskrift Europe PMC
Vol/bind 31
Sider (fra-til) 213
Antal sider 1
Status Udgivet - 2014

Activity of daily living performance amongst Danish asylum seekers: a cross-sectional study

Morville, A-L., Erlandsson, L-K., Eklund, M., Danneskiold-Samsøe, B., Christensen, R. & Amris, K., 2014, I: Torture (on-line udgave af Torture Journal). 24, 1, s. 49-64 16 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

OBJECTIVE: The aim of this study was to evaluate the extent of Activities of Daily Living (ADL) ability impairment in newly arrived Danish asylum seekers. It was hypothesized that exposure to trauma and torture would negatively influence ADL performance and that measures of ADL ability would be lower in individuals exposed to torture as compared to the non-tortured.

SUBJECTS: Forty-three newly arrived asylum seekers aged 20-50 years, from Iran, Afghanistan and Syria, were consecutively included in the study.

METHOD: ADL ability was assessed with the observation-based test Assessment of Motor and Process Skills (AMPS). Interviews were based on questionnaires about torture exposure, WHO-5 Wellbeing Index, Major Depression Inventory and Pain Detect Questionnaire. All participants were interviewed and tested using a linguistic interpreter.

RESULTS: Thirty three (77%) participants reported exposure to torture. The tortured did not differ significantly from the nontortured on measures of ADL ability (two-sample t-tests: Motor, p= 0.36; Process, p= 0.82). ADL performance impairment was observed in the overall study sample. Twelve had motor and 15 process ability measures below age norms and 2 below both AMPS motor and process cut-offs for effortless and efficient ADL performance. There were statistically significant - weak to moderate - correlations between self-reported psychological distress, VAS average pain, pain distribution and the AMPS measures.

CONCLUSION: The study results supported significant ADL ability impairment in tortured as well as non-tortured newly arrived asylum seekers. Implementation of performance-based evaluation of ADL ability as part of the initial medical screening of this particular population should be considered.

Originalsprog Engelsk
Tidsskrift Torture (on-line udgave af Torture Journal)
Vol/bind 24
Udgave nummer 1
Sider (fra-til) 49-64
Antal sider 16
ISSN 1997-3322
Status Udgivet - 2014

Adherence to methotrexate in rheumatoid arthritis treated by practice vs. hospital based rheumatologists: A Danish nationwide cohort study.

Bliddal, H., Eriksen, SA., Christensen, R., Lorenzen, T., Hansen, M. S., Østergaard, M., Dreyer, L. & Vestergaard, P., 2014, I: Annals of the Rheumatic Diseases. 73, Suppl. 2, s. 448-9 2 s.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

Originalsprog Engelsk
Tidsskrift Annals of the Rheumatic Diseases
Vol/bind 73
Udgave nummer Suppl. 2
Sider (fra-til) 448-9
Antal sider 2
ISSN 0003-4967
Status Udgivet - 2014

Alterations in circulating miRNA levels following early-stage estrogen receptor-positive breast cancer resection in post-menopausal women

Kodahl, A. R., Zeuthen, P., Binder, H., Knoop, A. S. & Ditzel, H. J., 2014, I: PLoS One. 9, 7, s. e101950

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

OBJECTIVE: To develop standardized musculoskeletal ultrasound (MUS) procedures and scoring for detecting knee osteoarthritis (OA) and test the MUS score's ability to discern various degrees of knee OA, in comparison with plain radiography and the 'Knee injury and Osteoarthritis Outcome Score' (KOOS) domains as comparators.

METHOD: A cross-sectional study of MUS examinations in 45 patients with knee OA. Validity, reliability, and reproducibility were evaluated.

RESULTS: MUS examination for knee OA consists of five separate domains assessing (1) predominantly morphological changes in the medial compartment, (2) predominantly inflammation in the medial compartment, (3) predominantly morphological changes in the lateral compartment, (4) predominantly inflammation in the lateral compartment, and (5) effusion. MUS scores displayed substantial reliability and reproducibility, with interclass correlations coefficients ranging from 0.75 to 0.97 for the five domains. Construct validity was confirmed with statistically significant correlation coefficients (0.47-0.81, P < 0.01).

CONCLUSION: The MUS score suggested in this study was reliable and valid in detecting knee OA. In comparison with standing radiographs of the knees, the score detected all aspects of knee OA with relevant precision.

Originalsprog Engelsk
Tidsskrift Osteoarthritis and cartilage / OARS, Osteoarthritis Research Society
Vol/bind 22
Udgave nummer 10
Sider (fra-til) 1675-91
Antal sider 17
ISSN 1063-4584
DOI
Status Udgivet - okt. 2014

Anaemia in Quick Diagnostic Unit

Stenqvist, C. & Schmidt, T. A., 2014, I: Palliative Medicine & Care: Open Access. 4 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskning

Anatomic suitability for endovascular repair of abdominal aortic aneurysms and possible benefits of low profile delivery systems

Kristmundsson, T., Sonesson, B., Dias, N., Malina, M. & Resch, T., apr. 2014, I: Vascular. 22, 2, s. 112-5 4 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Anti-TNF treatment response in rheumatoid arthritis patients is associated with genetic variation in the NLRP3-inflammasome

Sode, J., Vogel, U., Bank, S., Andersen, P. S., Thomsen, M. K., Hetland, M. L., Locht, H., Heegaard, N. H. H. & Andersen, V., 2014

Publikation: AndetUdgivelser på nettet - Net-publikationForskningpeer review

OBJECTIVE: Many patients with rheumatoid arthritis (RA) benefit from tumor necrosis factor-α blocking treatment (anti-TNF), but about one third do not respond. The objective of this study was to replicate and extend previously found associations between anti-TNF treatment response and genetic variation in the TNF-, NF-κB- and pattern recognition receptor signalling pathways.

METHODS: Forty-one single nucleotide polymorphisms (SNPs), including 34 functional, in 28 genes involved in inflammatory pathways were assessed in 538 anti-TNF naive Danish RA patients with clinical data. Multivariable logistic regression analyses were performed to test associations between genotypes and treatment response at 3-6 months using the European League Against Rheumatism (EULAR) response criterion. American College of Rheumatology treatment response (ACR50) and relative change in 28-joint disease activity score (relDAS28) were used as secondary outcomes. Subgroup analyses were stratified according to smoking status, type of anti-TNF drug and IgM-Rheumatoid Factor (IgM-RF) status. False discovery rate (FDR) controlling was used to adjust for multiple testing.

RESULTS: Statistically significant associations with EULAR response were found for two SNPs in NLRP3(rs4612666) (OR (odds ratio) for good/moderate response = 0.64 (95% confidence interval: 0.44-0.95), p = 0.025, q = 0.95) and INFG(rs2430561) (OR = 0.40 (0.21-0.76), p = 0.005, q = 0.18) and among IgM-RF positive patients for TNFRS1A(rs4149570) (0.59 (0.36-0.98), p = 0.040, q = 0.76). Current smokers who carried the NLRP3(rs4612666) variant allele were less likely to benefit from anti-TNF treatment (OR = 0.24 (0.10-0.56), p = 0.001, q = 0.04).

CONCLUSIONS: In a population of Danish RA patients, we confirm the NLRP3 gene as associated with EULAR anti-TNF response as previously reported. The NLRP3 variant (T) allele is associated with lower treatment response, in particular among current smokers. Furthermore, we find that a functional polymorphism in the interferon-γ gene is associated with anti-TNF response. All findings should be tested by replication in independent validation cohorts and augmented by assessing cytokine levels and activities of the relevant gene products.

Originalsprog Engelsk
Publikationsdato 2014
DOI
Status Udgivet - 2014

Antipsychotic treatment for children and adolescents with schizophrenia spectrum disorders: protocol for a network meta-analysis of randomised trials

Pagsberg, A. K., Tarp, S., Glintborg, D., Stenstrøm, A. D., Fink-Jensen, A., Correll, C. U. & Christensen, R. D. K., 2014, I: B M J Open. 4, 10, s. e005708

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

INTRODUCTION: Antipsychotic treatment in early-onset schizophrenia (EOS) lacks a rich evidence base, and efforts to rank different drugs concerning their efficacy have not proven any particular drug superior. In contrast to the literature regarding adult-onset schizophrenia (AOS), comparative effectiveness studies in children and adolescents are limited in number and size, and only a few meta-analyses based on conventional methodologies have been conducted.

METHODS AND ANALYSES: We will conduct a network meta-analysis of all randomised controlled trials (RCTs) that evaluate antipsychotic therapies for EOS to determine which compounds are efficacious, and to determine the relative efficacy and safety of these treatments when compared in a network meta-analysis. Unlike a contrast-based (standard) meta-analysis approach, an arm-based network meta-analysis enables statistical inference from combining both direct and indirect comparisons within an empirical Bayes framework. We will acquire eligible studies through a systematic search of MEDLINE, the Cochrane Central Registry of Controlled Trials, Clinicaltrials.gov and Centre for Reviews and Dissemination databases. Eligible studies should randomly allocate children and adolescents presenting with schizophrenia or a related non-affective psychotic condition to an intervention group or to a control group. Two reviewers will-independently and in duplicate-screen titles and abstracts, complete full text reviews to determine eligibility, and subsequently perform data abstraction and assess risk of bias of eligible trials. We will conduct meta-analyses to establish the effect of all reported therapies on patient-relevant efficacy and safety outcomes when possible.

ETHICS AND DISSEMINATION: No formal ethical procedures regarding informed consent are required as no primary data collection is undertaken. The review will help facilitate evidence-based management, identify key areas for future research, and provide a framework for conducting large systematic reviews combining direct and indirect comparisons. The study will be disseminated by peer-reviewed publication and conference presentation.

TRIAL REGISTRATION NUMBER: PROSPERO CRD42013006676.

Originalsprog Engelsk
Tidsskrift B M J Open
Vol/bind 4
Udgave nummer 10
Sider (fra-til) e005708
ISSN 2044-6055
DOI
Status Udgivet - 2014

Assessing bias in osteoarthritis trials included in Cochrane reviews: protocol for a meta-epidemiological study

Hansen, J. B., Juhl, C. B., Boutron, I., Tugwell, P., Ghogomu, E. A. T., Pardo Pardo, J., Rader, T., Wells, G. A., Mayhew, A., Maxwell, L., Lund, H., Christensen, R. & Editorial Board of the Cochrane Musculoskeletal Group, 2014, I: B M J Open. 4, 10, s. e005491

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

INTRODUCTION: The validity of systematic reviews and meta-analysis depends on methodological quality and unbiased dissemination of trials. Our objective is to evaluate the association of estimates of treatment effects with different bias-related study characteristics in meta-analyses of interventions used for treating pain in osteoarthritis (OA). From the findings, we hope to consolidate guidance on interpreting OA trials in systematic reviews based on empirical evidence from Cochrane reviews.

METHODS AND ANALYSIS: Only systematic reviews that compare experimental interventions with sham, placebo or no intervention control will be considered eligible. Bias will be assessed with the risk of bias tool, used according to the Cochrane Collaboration's recommendations. Furthermore, center status, trial size and funding will be assessed. The primary outcome (pain) will be abstracted from the first appearing forest plot for overall pain in the Cochrane review. Treatment effect sizes will be expressed as standardised mean differences (SMDs), where the difference in mean values available from the forest plots is divided by the pooled SD. To empirically assess the risk of bias in treatment benefits, we will perform stratified analyses of the trials from the included meta-analyses and assess the interaction between trial characteristics and treatment effect. A relevant study-level covariate is defined as one that decreases the between-study variance (τ(2), estimated as Tau-squared) as a consequence of inclusion in the mixed effects statistical model.

ETHICS AND DISSEMINATION: Meta-analyses and randomised controlled trials provide the most reliable basis for treatment of patients with OA, but the actual impact of bias is unclear. This study will systematically examine the methodological quality in OA Cochrane reviews and explore the effect estimates behind possible bias. Since our study does not collect primary data, no formal ethical assessment and informed consent are required.

TRIAL REGISTRATION NUMBER: PROSPERO (CRD42013006924).

Originalsprog Engelsk
Tidsskrift B M J Open
Vol/bind 4
Udgave nummer 10
Sider (fra-til) e005491
ISSN 2044-6055
DOI
Status Udgivet - 2014

Association between prenatal polychlorinated biphenyl exposure and obesity development at ages 5 and 7 y: a prospective cohort study of 656 children from the Faroe Islands

Tang-Péronard, J. L., Heitmann, B. L., Andersen, H. R., Steuerwald, U., Grandjean, P., Weihe, P. & Jensen, T. K., jan. 2014, I: The American journal of clinical nutrition. 99, 1, s. 5-13 9 s.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

BACKGROUND: Chemicals with endocrine-disrupting abilities may act as obesogens and interfere with the body's natural weight-control mechanisms, especially if exposure occurs during prenatal life.

OBJECTIVE: We examined the association between prenatal exposure to polychlorinated biphenyls (PCBs) and p,p'-dichlorodiphenyldichloroethylene (DDE) and subsequent obesity at 5 and 7 y of age.

DESIGN: From 1997 to 2000, 656 pregnant Faroese women were recruited. PCB and DDE were measured in maternal serum and breast milk, and children's weight, height, and waist circumference (WC) were measured at clinical examinations at 5 and 7 y of age. The change in body mass index (BMI) from 5 to 7 y of age was calculated. Analyses were performed by using multiple linear regression models for girls and boys separately, taking into account maternal prepregnancy BMI.

RESULTS: For 7-y-old girls who had overweight mothers, PCB was associated with increased BMI (β = 2.07, P = 0.007), and PCB and DDE were associated with an increased change in BMI from 5 to 7 y of age (PCB: β = 1.23, P = 0.003; DDE: β = 1.11, P = 0.008). No association was observed with BMI in girls with normal-weight mothers. PCB was associated with increased WC in girls with overweight mothers (β = 2.48, P = 0.001) and normal-weight mothers (β = 1.25, P = 0.04); DDE was associated with increased WC only in girls with overweight mothers (β = 2.21, P = 0.002). No associations were observed between PCB or DDE and BMI in 5-y-old girls. For boys, no associations were observed.

CONCLUSIONS: Results suggest that prenatal exposure to PCB and DDE may play a role for subsequent obesity development. Girls whose mothers have a high prepregnancy BMI seem most affected.

Originalsprog Engelsk
Tidsskrift The American journal of clinical nutrition
Vol/bind 99
Udgave nummer 1
Sider (fra-til) 5-13
Antal sider 9
ISSN 0002-9165
DOI
Status Udgivet - jan. 2014

OBJECTIVE: Exercise has beneficial effects on pain in knee osteoarthritis (OA), yet the underlying mechanisms are unclear. The purpose of this study was to investigate the effects of exercise on pressure-pain sensitivity in patients with knee OA.

METHODS: In a randomized controlled trial, participants were assigned to 12 weeks of supervised exercise therapy (ET; 36 sessions) or a no attention control group (CG). Pressure-pain sensitivity was assessed by cuff pressure algometry on the calf of the most symptomatic leg. The coprimary outcomes were pressure-pain thresholds (PPTs) and cumulated visual analog scale pain scores during constant pressure for 6 minutes at 125% of the PPT as a measure of temporal summation (TS) of pressure-pain. Secondary outcomes included self-reported pain using the Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire. Analyses were based on the "per-protocol" population (participants following the protocol).

RESULTS: Sixty participants were randomized (31 in ET group, 29 in CG), and the per-protocol population included 48 participants (25 in ET group, 23 in CG). At followup, mean group differences in the change from baseline were 3.1 kPa (95% confidence interval [95% CI] 0.2, 6.0; P = 0.038) for the PPT, 2,608 mm × seconds (95% CI 458, 4,758; P = 0.019) for TS, and 6.8 points (95% CI 1.2, 12.4; P = 0.018) for KOOS pain, all in favor of ET.

CONCLUSION: Pressure-pain sensitivity, TS, and self-reported pain are reduced among patients completing a 12-week supervised exercise program compared to a no attention CG. These results demonstrate beneficial effects of exercise on basic pain mechanisms and further exploration may provide a basis for optimized treatment.

Originalsprog Engelsk
Tidsskrift Arthritis Care & Research
Vol/bind 66
Udgave nummer 12
Sider (fra-til) 1836-43
Antal sider 8
ISSN 2151-464X
DOI
Status Udgivet - dec. 2014

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