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  1. Article ; Online: Susceptibility to COVID-19 after High Exposure to Perfluoroalkyl Substances from Contaminated Drinking Water: An Ecological Study from Ronneby, Sweden.

    Nielsen, Christel / Jöud, Anna

    International journal of environmental research and public health

    2021  Volume 18, Issue 20

    Abstract: There is concern that immunotoxic environmental contaminants, particularly perfluoroalkyl substances (PFAS), may play a role in the clinical course of COVID-19 and epidemiologic studies are needed to answer if high-exposed populations are especially ... ...

    Abstract There is concern that immunotoxic environmental contaminants, particularly perfluoroalkyl substances (PFAS), may play a role in the clinical course of COVID-19 and epidemiologic studies are needed to answer if high-exposed populations are especially vulnerable in light of the ongoing pandemic. The objective was, therefore, to determine if exposure to highly PFAS-contaminated drinking water was associated with an increased incidence of COVID-19 in Ronneby, Sweden, during the first year of the pandemic. We conducted an ecological study determining the sex- and age-standardized incidence ratio (SIR) in the adult population relative to a neighboring reference town with similar demographic characteristics but with only background levels of exposure. In Sweden, COVID-19 is subject to mandatory reporting, and we retrieved aggregated data on all verified cases until 3 March 2021 from the Public Health Agency of Sweden. The SIR in Ronneby was estimated at 1.19 (95% CI: 1.12; 1.27). The results suggest a potential link between high PFAS exposure and susceptibility to COVID-19 that warrants further research to clarify causality.
    MeSH term(s) Adult ; Alkanesulfonic Acids/analysis ; Alkanesulfonic Acids/toxicity ; COVID-19 ; Drinking Water/analysis ; Fluorocarbons/analysis ; Fluorocarbons/toxicity ; Humans ; SARS-CoV-2 ; Sweden/epidemiology ; Water Pollutants, Chemical/analysis ; Water Pollutants, Chemical/toxicity
    Chemical Substances Alkanesulfonic Acids ; Drinking Water ; Fluorocarbons ; Water Pollutants, Chemical
    Language English
    Publishing date 2021-10-12
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph182010702
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Cohort profile: The Swedish Tattoo and Body Modifications Cohort (TABOO).

    Nielsen, Christel / Andréasson, Kristofer / Olsson, H / Engfeldt, Malin / Jöud, Anna

    BMJ open

    2023  Volume 13, Issue 5, Page(s) e069664

    Abstract: Purpose: The Swedish Tattoo and Body Modifications Cohort (TABOO) cohort was established to provide an infrastructure for epidemiological studies researching the role of tattoos and other body modifications as risk factors for adverse health outcomes. ... ...

    Abstract Purpose: The Swedish Tattoo and Body Modifications Cohort (TABOO) cohort was established to provide an infrastructure for epidemiological studies researching the role of tattoos and other body modifications as risk factors for adverse health outcomes. It is the first population-based cohort with detailed exposure assessment of decorative, cosmetic, and medical tattoos, piercing, scarification, henna tattoos, cosmetic laser treatments, hair dyeing, and sun habits. The level of detail in the exposure assessment of tattoos allows for investigation of crude dose-response relationships.
    Participants: The TABOO cohort includes 13 049 individuals that participated in a questionnaire survey conducted in 2021 (response rate 49%). Outcome data are retrieved from the National Patient Register, the National Prescribed Drug Register and the National Cause of Death Register. Participation in the registers is regulated by Swedish law, which eliminates the risk of loss to follow-up and associated selection bias.
    Findings to date: The tattoo prevalence in TABOO is 21%. The cohort is currently used to clarify the incidence of acute and long-lasting health complaints after tattooing based on self-reported data. Using register-based outcome data, we are investigating the role of tattoos as a risk factor for immune-mediated disease, including hypersensitisation, foreign body reactions and autoimmune conditions.
    Future plans: The register linkage will be renewed every third year to update the outcome data, and we have ethical approval to reapproach the responders with additional questionnaires.
    MeSH term(s) Humans ; Tattooing/adverse effects ; Taboo ; Sunbathing ; Sweden/epidemiology ; Surveys and Questionnaires
    Language English
    Publishing date 2023-05-04
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2599832-8
    ISSN 2044-6055 ; 2044-6055
    ISSN (online) 2044-6055
    ISSN 2044-6055
    DOI 10.1136/bmjopen-2022-069664
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Can Baseline Characteristics Predict Successful Outcomes after Individual, Physiotherapist-Led Rehabilitation in Patients with Chronic Musculoskeletal Pain?

    Bondesson, Elisabeth / Jöud, Anna / Rivano Fischer, Marcelo / Trulsson Schouenborg, Anna

    Pain research & management

    2023  Volume 2023, Page(s) 5182996

    Abstract: Background: No strong and consistent variables to predict outcome after pain rehabilitation have been reported in patients with chronic musculoskeletal pain. The aim of the present study was to clarify if baseline variables could predict successful ... ...

    Abstract Background: No strong and consistent variables to predict outcome after pain rehabilitation have been reported in patients with chronic musculoskeletal pain. The aim of the present study was to clarify if baseline variables could predict successful outcome after a unique, individualized, physiotherapist-led rehabilitation of nine sessions.
    Methods: In 274 individuals with severe chronic musculoskeletal pain, the risk ratio (RR) and 95% confidence intervals (CIs) were estimated for potentially predictive baseline variables on successful outcomes of pain management, overall health, and pain rating.
    Results: Statistically significant results show that patients rating moderate or severe baseline pain were in both cases 14% less likely to improve pain management compared to patients rating mild baseline pain (RR = 0.86; 95% CI 0.77-0.97, RR = 0.86; 95% CI 0.74-1.00). Patients with the shortest pain duration were 1.61 times more likely to improve overall health (RR = 1.61; 95% CI 1.13-2.29) compared to patients reporting the longest pain duration (>5 years). Patients reporting anxiety/depression or severe pain were in both cases 1.48 times more likely to improve overall health compared to better baseline presentations (RR = 1.48; 95% CI 1.16-1.88, RR = 1.48; 95% CI 1.03-2.15). Patients with regional/generalized pain were 36% less likely to rate pain reduction (RR = 0.64; 95% CI 0.41-1.00) compared to patients rating localized baseline pain. Of 17 potentially predictive baseline variables, four reached statistical significance for at least one of the three outcomes; although none of them for all three outcomes.
    Conclusions: Of 17 potentially predictive baseline variables, mild pain ratings, short pain duration, and localized baseline pain were statistically significantly associated with improvements after individual, physiotherapist-led rehabilitation for patients with chronic musculoskeletal pain. This suggests that this type of rehabilitation probably should be offered early in the pain process. Reporting anxiety/depression or severe pain at the baseline did not hinder the improvements of overall health.
    MeSH term(s) Humans ; Musculoskeletal Pain ; Physical Therapists ; Chronic Pain ; Pain Management ; Depression
    Language English
    Publishing date 2023-06-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2041085-2
    ISSN 1918-1523 ; 1203-6765
    ISSN (online) 1918-1523
    ISSN 1203-6765
    DOI 10.1155/2023/5182996
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Computational models predicting the early development of the COVID-19 pandemic in Sweden: systematic review, data synthesis, and secondary validation of accuracy.

    Gerlee, Philip / Jöud, Anna / Spreco, Armin / Timpka, Toomas

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 13256

    Abstract: Computational models for predicting the early course of the COVID-19 pandemic played a central role in policy-making at regional and national levels. We performed a systematic review, data synthesis, and secondary validation of studies that reported on ... ...

    Abstract Computational models for predicting the early course of the COVID-19 pandemic played a central role in policy-making at regional and national levels. We performed a systematic review, data synthesis, and secondary validation of studies that reported on prediction models addressing the early stages of the COVID-19 pandemic in Sweden. A literature search in January 2021 based on the search triangle model identified 1672 peer-reviewed articles, preprints and reports. After applying inclusion criteria 52 studies remained out of which 12 passed a Risk of Bias Opinion Tool. When comparing model predictions with actual outcomes only 4 studies exhibited an acceptable forecast (mean absolute percentage error, MAPE < 20%). Models that predicted disease incidence could not be assessed due to the lack of reliable data during 2020. Drawing conclusions about the accuracy of the models with acceptable methodological quality was challenging because some models were published before the time period for the prediction, while other models were published during the prediction period or even afterwards. We conclude that the forecasting models involving Sweden developed during the early stages of the COVID-19 pandemic in 2020 had limited accuracy. The knowledge attained in this study can be used to improve the preparedness for coming pandemics.
    MeSH term(s) COVID-19/epidemiology ; Computer Simulation ; Forecasting ; Humans ; Pandemics ; Sweden/epidemiology
    Language English
    Publishing date 2022-08-02
    Publishing country England
    Document type Journal Article ; Systematic Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-16159-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Physiotherapist-led rehabilitation for patients with chronic musculoskeletal pain: interventions and promising long-term outcomes.

    Trulsson Schouenborg, Anna / Rivano Fischer, Marcelo / Bondesson, Elisabeth / Jöud, Anna

    BMC musculoskeletal disorders

    2021  Volume 22, Issue 1, Page(s) 910

    Abstract: Background: There is no consensus on best content, set-up, category of involved healthcare professionals or duration of rehabilitation-programs for patients with chronic musculoskeletal pain, and outcomes show varying results. Individual care regimes ... ...

    Abstract Background: There is no consensus on best content, set-up, category of involved healthcare professionals or duration of rehabilitation-programs for patients with chronic musculoskeletal pain, and outcomes show varying results. Individual care regimes for sub-groups of patients have been proposed.
    Aim: To describe the type of interventions used in a physiotherapist-led, rehabilitation-program for patients with chronic musculoskeletal pain, refractory to preceding treatments. A second aim was to report clinical outcomes at 1-year follow-up after the intervention period.
    Methods: All patients referred to physiotherapist within a specialist pain-unit due to being refractory to preceding treatments, and deemed fit to undergo physiotherapy-based, individualized rehabilitation during 2014-2018 were consecutively included and followed-up 1 year after ending the program. The inclusion was based on structured 'clinical reasoning' using the referral, examination and on patient-relevant outcome measures. The individual interventions, recorded according to a manual used when reading the patients' medical records, were described. Primary outcomes were clinical results of perceived pain, disability and overall health at start, discharge and 1 year after discharge.
    Results: In total, 274 patients (mean age 42 years, 71% women) were included, suffering from chronic, severe, musculoskeletal pain (VAS median 7/10, duration median 2.8 years) and moderate disability. The most frequent interventions were education, sensorimotor training, physical activity-advice and interventions for structures/functions (for example manual techniques, stretching) for a median of nine sessions during five months. Despite refractory to preceding treatments, 45% of the patients rated clinically important improvements on pain, 61% on disability and 50% on overall health at discharge and the figures were similar at 1-year follow-up.
    Conclusions: A physiotherapist-led, one-to-one, rehabilitation-program of median nine sessions during five months, combining individualized education, sensorimotor training, physical activity-advice and interventions for structures/functions rendered clinically relevant improvements on pain, disability and overall health in half of the patients at 1-year follow-up. Since the cohort consisted of patients refractory to preceding treatments, we believe that these results warrant further studies to identify the subgroups of patients with chronic musculoskeletal pain that will improve from new, distinctive, resource-effective rehabilitation-programs involving individualized rehabilitation.
    MeSH term(s) Adult ; Chronic Pain/diagnosis ; Chronic Pain/therapy ; Female ; Humans ; Male ; Musculoskeletal Pain/diagnosis ; Musculoskeletal Pain/therapy ; Physical Therapists ; Physical Therapy Modalities ; Treatment Outcome
    Language English
    Publishing date 2021-10-28
    Publishing country England
    Document type Journal Article
    ISSN 1471-2474
    ISSN (online) 1471-2474
    DOI 10.1186/s12891-021-04780-x
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  6. Article ; Online: Diagnostic codes of cancer in Skåne healthcare register: a validation study using individual-level data in southern Sweden.

    Shen, Qing / Schelin, Maria E C / Fang, Fang / Jöud, Anna

    BMC cancer

    2021  Volume 21, Issue 1, Page(s) 759

    Abstract: Background: The Swedish healthcare is decentralised to 21 regions. Detailed information on all delivered care in the southernmost region, Skåne, is prospectively collected in the Skåne Healthcare Register (SHR). The data is updated daily and hence a ... ...

    Abstract Background: The Swedish healthcare is decentralised to 21 regions. Detailed information on all delivered care in the southernmost region, Skåne, is prospectively collected in the Skåne Healthcare Register (SHR). The data is updated daily and hence a good source for epidemiological studies. However, the diagnostic codes used to identify cancer patients in SHR have not yet been validated.
    Methods: We conducted a validation study including 1,473,204 residents in Skåne region during 2005-2014, with at least one physical consultation in SHR. Newly diagnosed cancer from the Swedish Cancer Register was considered the 'gold standard' reference. We estimated the positive predictive value (PPV), sensitivity, and area under the curve (AUC) of a cancer diagnosis based on SHR by level of consultation, for any cancer, and for different cancer types.
    Results: There were 61,693 cancers from the Swedish Cancer Register, and 87,650 cancers from SHR. The PPV of SHR-based diagnosis of any cancer was 63.76% (95% confidence interval (CI): 63.44-64.08%) with a sensitivity of 90.58% (95% CI: 90.35-90.81%). The AUC was 0.94, for any cancer. The measures of PPV, sensitivity and AUC varied across levels of care and were higher in specialized care than in primary care. The highest PPV was observed for specialist inpatient care in SHR (89.17, 95% CI 88.89-89.45%) whereas the highest sensitivity was observed for specialized outpatient care in SHR (86.39, 95%CI 86.12-86.66%). Robust validity was noted among most cancers, except for cancers of soft tissues, central nervous system and eye, and endocrine glands.
    Conclusions: Our study supports that SHR is a valid and robust healthcare register for cancer diagnosis, with varying validities across levels of care and cancer types. This makes SHR a useful data source for cancer epidemiological studies, especially because the data covers the entire cancer care pathways without time lags for further linkage.
    MeSH term(s) Female ; Humans ; Male ; Neoplasms/epidemiology ; Pathology, Molecular/methods ; Registries ; Sweden
    Language English
    Publishing date 2021-06-30
    Publishing country England
    Document type Journal Article ; Validation Study
    ISSN 1471-2407
    ISSN (online) 1471-2407
    DOI 10.1186/s12885-021-08481-5
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  7. Article ; Online: Health care utilization among individuals who die by suicide as compared to the general population: a population-based register study in Sweden.

    Bondesson, Elisabeth / Alpar, Tori / Petersson, Ingemar F / Schelin, Maria E C / Jöud, Anna

    BMC public health

    2022  Volume 22, Issue 1, Page(s) 1616

    Abstract: Background: Globally, 700 000 people die every year by suicide. Health care consultation patterns the period before suicide could be one potential way to identify people at risk for suicide. Therefore, this study examines health care patterns up to one ... ...

    Abstract Background: Globally, 700 000 people die every year by suicide. Health care consultation patterns the period before suicide could be one potential way to identify people at risk for suicide. Therefore, this study examines health care patterns up to one year prior to the suicide by age, sex and prior diagnoses and specifically investigates if and how this differs from the general population of Skåne, Sweden.
    Methods: This cohort study includes all individuals, aged 15 and older, that died by suicide in Region Skåne, Sweden from 2004 to 2015 (n = 1653). The individuals were identified through the Cause of death register and then linked to the Skåne healthcare register. Health care data was analyzed as proportions consulting different types of health care the month and year preceding the suicide, we also investigated the impact of age, sex and the occurrence of prior psychiatric and pain diagnoses. Additionally, we compared the proportion of consulting care among the suicide victims and the general population of Skåne.
    Results: In the month before their death, 53% of the suicide victims had any health care consultation, compared with 20% in the general population of Skåne, a given month (p < 0.0001). The corresponding figures for the year prior to suicide was 86% among those who died by suicide, compared to 69% in the general population of Skåne, a given year (p < 0.0001). Women, and those having a documented history of psychiatric diagnosis were more likely to have health care consultations in the month and year preceding suicide (p < 0.001), compared to men and suicide victims without a history of psychiatric disease. Older adults that died by suicide, were less likely to consult psychiatric care compared to the younger suicide victims (p < 0.001).
    Conclusion: A majority of the suicide victims consulted health care in the near time before death and the proportion of seeking health care was significantly higher than in the general population of Skåne and higher among female suicide victims as compared to males. Alternative preventive screening measures should be considered for individuals consulting health care, especially for older people and individuals outside the psychiatric care.
    MeSH term(s) Aged ; Cohort Studies ; Delivery of Health Care ; Female ; Humans ; Male ; Patient Acceptance of Health Care ; Suicide/prevention & control ; Sweden/epidemiology
    Language English
    Publishing date 2022-08-25
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2041338-5
    ISSN 1471-2458 ; 1471-2458
    ISSN (online) 1471-2458
    ISSN 1471-2458
    DOI 10.1186/s12889-022-14006-x
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  8. Article ; Online: The risk of depression and anxiety is not increased in individuals with juvenile idiopathic arthritis - results from the south-Swedish juvenile idiopathic arthritis cohort.

    Berthold, Elisabet / Dahlberg, Alma / Jöud, Anna / Tydén, Helena / Månsson, Bengt / Kahn, Fredrik / Kahn, Robin

    Pediatric rheumatology online journal

    2022  Volume 20, Issue 1, Page(s) 114

    Abstract: Background: Children with chronic diseases are reported to have increased risk of psychiatric comorbidity. Few studies have investigated this risk in juvenile idiopathic arthritis (JIA), with conflicting results. We performed a population-based, ... ...

    Abstract Background: Children with chronic diseases are reported to have increased risk of psychiatric comorbidity. Few studies have investigated this risk in juvenile idiopathic arthritis (JIA), with conflicting results. We performed a population-based, longitudinal cohort study of the risk of depression and anxiety in south-Swedish patients with juvenile arthritis.
    Methods: The south-Swedish JIA cohort (n = 640), a population-based cohort with validated JIA diagnosis 1980 - 2010 and comparators, a reference group of 3200 individuals free from JIA, matched for sex, year of birth and residential region, was used. Data on comorbid diagnosis with depression or anxiety were obtained from the Skåne Healthcare Register, containing all healthcare contacts in the region, from 1998 to 2019. We used Cox proportional models for the calculation of hazard ratios.
    Results: During the study period, 1998 to 2019, 93 (14.5%) of the individuals in the JIA group were diagnosed with depression, and 111 (17.3%) with anxiety. Corresponding numbers among the references was 474 (14.8%) with depression and 557 (17.4%) with anxiety. Hazard ratio for depression was 1.1 (95% CI 0.9 - 1.5) in females and 0.8 (95% CI 0.5 - 1.4) in males, and for anxiety 1.2 (95% CI 0.9 - 1.5) in females and 0.6 (95% CI 0.4 - 1.1) in males. There were no statistically significant hazard ratios when analyzing subgroups of JIA patients with long disease duration or treatment with disease-modifying antirheumatic drugs.
    Conclusions: Individuals with JIA do not have any statistically increased risk of being diagnosed with depression or anxiety compared to matched references.
    Language English
    Publishing date 2022-12-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2279468-2
    ISSN 1546-0096 ; 1546-0096
    ISSN (online) 1546-0096
    ISSN 1546-0096
    DOI 10.1186/s12969-022-00765-9
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  9. Article ; Online: Infertility, pregnancy loss and assisted reproduction in women with asthma: a population-based cohort study.

    Jöud, Anna / Nilsson-Condori, Emma / Schmidt, Lone / Ziebe, Søren / Vassard, Ditte / Mattsson, Kristina

    Human reproduction (Oxford, England)

    2022  Volume 37, Issue 12, Page(s) 2932–2941

    Abstract: Study question: Is the chance of childbirth, and risk of infertility, pregnancy loss and need for assisted reproduction different for women with asthma compared to women without asthma?: Summary answer: Women with asthma had comparable chances of ... ...

    Abstract Study question: Is the chance of childbirth, and risk of infertility, pregnancy loss and need for assisted reproduction different for women with asthma compared to women without asthma?
    Summary answer: Women with asthma had comparable chances of giving birth compared to the reference population, however, their risk of both infertility and pregnancy loss, as well their need for medically assisted reproduction, was higher.
    What is known already: Reproductive dysfunction has been reported among women with asthma, including longer time to pregnancy, increased risk of pregnancy loss and a higher need of medically assisted reproduction, but their risk of clinical infertility is unknown.
    Study design, size, duration: This longitudinal register-based cohort study included all women with a healthcare visit for delivery, infertility, pregnancy loss or induced abortion in the southernmost county in Sweden, over the last 20 years.
    Participants/materials, setting, methods: Using the Skåne Healthcare Register, we identified all women aged 15-45 between 1998 and 2019, who received a diagnosis of asthma before their first reproductive outcome (n = 6445). Chance of childbirth and risk of infertility, pregnancy loss and assisted reproduction were compared to a healthcare seeking population of women without any asthma (n = 200 248), using modified Poisson regressions.
    Main results and the role of chance: The chance of childbirth was not different between women with asthma versus those without, adjusted risk ratio (aRR) = 1.02, 95% CI: 1.01-1.03. The risk of seeking care for infertility was increased, aRR = 1.29, 95% CI: 1.21-1.39, and women with asthma more often needed assisted reproduction aRR = 1.34 95% CI: 1.18-1.52. The risk of suffering a pregnancy loss was higher, aRR = 1.21, 95% CI: 1.15-1.28, and induced abortions were more common, aRR = 1.15, 95% CI: 1.11-1.20, among women with asthma.
    Limitations, reasons for caution: The study was an observational study based on healthcare visits and lacked detailed anthropometric data, thus residual confounding cannot be excluded. Only women with a healthcare visit for a reproductive outcome were included, which cannot be translated into pregnancy intention. A misclassification, presumed to be non-differential, may arise from an incorrect or missing diagnosis of asthma or female infertility, biasing the results towards the null.
    Wider implications of the findings: This study points towards reproductive dysfunction associated with asthma, specifically in regards to the ability to maintain a pregnancy and the risk of needing medically assisted reproduction following clinical infertility, but reassuringly the chance of subsequently giving birth was not lower for these women.
    Study funding/competing interest(s): This article is part of the ReproUnion collaborative study, co-financed by EU Interreg ÖKS, Capital Region of Denmark, Region Skåne and Ferring Pharmaceuticals. The authors have no competing interests to disclose.
    Trial registration number: N/A.
    MeSH term(s) Pregnancy ; Female ; Humans ; Cohort Studies ; Abortion, Spontaneous/epidemiology ; Reproduction ; Infertility, Female/complications ; Infertility, Female/therapy ; Infertility, Female/epidemiology ; Abortion, Induced ; Asthma/complications ; Asthma/epidemiology
    Language English
    Publishing date 2022-10-07
    Publishing country England
    Document type Observational Study ; Journal Article
    ZDB-ID 632776-x
    ISSN 1460-2350 ; 0268-1161 ; 1477-741X
    ISSN (online) 1460-2350
    ISSN 0268-1161 ; 1477-741X
    DOI 10.1093/humrep/deac216
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  10. Article ; Online: How good is the agreement between clinical diagnoses and classification criteria fulfilment in axial spondyloarthritis? Results from the SPARTAKUS cohort.

    Lindqvist, Elisabet / Olofsson, Tor / Jöud, Anna / Geijer, Mats / Wallman, Johan K / Mogard, Elisabeth

    Scandinavian journal of rheumatology

    2022  Volume 52, Issue 4, Page(s) 364–373

    Abstract: Objectives: To study the agreement between clinical axial spondyloarthritis (axSpA) diagnoses and fulfilment of the Assessment of SpondyloArthritis international Society (ASAS) axSpA and modified New York (mNY) classification criteria, and to compare ... ...

    Abstract Objectives: To study the agreement between clinical axial spondyloarthritis (axSpA) diagnoses and fulfilment of the Assessment of SpondyloArthritis international Society (ASAS) axSpA and modified New York (mNY) classification criteria, and to compare disease/health status between axSpA subtypes.
    Method: Patients with prevalent, clinical axSpA attending a rheumatology clinic were enrolled in a cross-sectional study. Assessments included physical evaluation, laboratory testing, questionnaires, and appropriate imaging, allowing classification. Standard axSpA outcome measures were compared between patients fulfilling mNY/radiographic versus non-radiographic axSpA (r-axSpA/nr-axSpA) criteria.
    Results: Of 239 consecutively included patients, 141 fulfilled ASAS r-axSpA and/or mNY criteria, while 57 fulfilled nr-axSpA criteria. The agreement between r-axSpA and mNY criteria fulfilment was 94%. The positive predictive value (PPV) of a clinical ankylosing spondylitis (AS) diagnosis for mNY criteria fulfilment was 71%; the PPV of an undifferentiated axSpA (u-axSpA) diagnosis for fulfilment of nr-axSpA criteria was 30% and 40% for mNY criteria. Patients with r-axSpA/AS were older, more often men, and had longer disease duration, more uveitis, and worse spinal mobility than nr-axSpA patients, who had more enthesitis and dactylitis.
    Conclusion: We found an overall good concordance between clinical axSpA diagnoses and classification criteria fulfilment, with 83% fulfilling ASAS axSpA and/or mNY criteria. Regarding axSpA subtypes, the concordance was weaker, and although the ICD-10 code for AS correctly identified patients meeting mNY criteria in 71% of cases, one-third of mNY-positive patients lacked an AS diagnosis. Moreover, clinical u-axSpA diagnoses could not serve as a proxy to identify nr-axSpA, highlighting the importance of thorough classification in research on axSpA subtypes.
    MeSH term(s) Male ; Humans ; Non-Radiographic Axial Spondyloarthritis ; Cross-Sectional Studies ; Radiography ; Spondylarthritis/diagnosis ; Spondylitis, Ankylosing/diagnosis
    Language English
    Publishing date 2022-06-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 121265-5
    ISSN 1502-7732 ; 0300-9742
    ISSN (online) 1502-7732
    ISSN 0300-9742
    DOI 10.1080/03009742.2022.2064183
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