scholarly journals P182 Prevalence and mortality of ANCA-associated vasculitis in England

Rheumatology ◽  
2020 ◽  
Vol 59 (Supplement_2) ◽  
Author(s):  
Fiona A Pearce ◽  
Bridget Griffiths ◽  
Chetan Mukhtyar ◽  
Reem Al-Jayoussi ◽  
Richard A Watts ◽  
...  
Keyword(s):  
Granulomatosis With Polyangiitis ◽  
Adult Population ◽  
Population Based ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Standardised Mortality Ratio ◽  
Anca Associated Vasculitis ◽  
Background Population ◽  
Routine Identification ◽  
The Usa ◽  
Mortality Ratio

Abstract Background The contemporary prevalence of ANCA-associated vasculitis (AAV) in England is unknown. Hospital Episode Statistics (HES) contain data on every hospital and day case NHS admission in England since 1997. In collaboration with the National Congenital Anomaly and Rare Disease Registration Service (NCARDRS) we validated the diagnosis of AAV using ICD codes in HES. The positive predictive value of these codes was 86%, which compares favourably to a median coding accuracy of 80% in a recent systematic review of NHS coding studies. This justifies using this novel dataset for population-based epidemiology with coverage of the whole population of England. Methods We worked within NCARDRS enabled by their Section 251 legal permissions (CAG 10-02(d)/2015). We extracted all cases of AAV from HES 2011/12 to 2016/17 using ICD-10 codes M313 Granulomatosis with polyangiitis (GPA), M317 Microscopic polyangiitis (MPA), and M301 Eosinophilic granulomatosis with polyangiitis (EGPA). We used the Summary Care Record to check vital status and record date of death where appropriate. We estimated point prevalence on 1 July 2016 using ONS mid-year population estimates for England in 2016 as the denominator. Standardised mortality ratio (SMR) was calculated using the Office for National Statistics death summary tables 2016 to provide expected number of deaths for each 5-year age-band and sex. Results We identified 9,890 patients who were coded as having AAV during a hospital admission 2011-2017. This included 6,856 (69.3%) with GPA, 964 (9.8%) with MPA and 2,070 (20.9%) with EGPA. On 1 July 2016, our dataset found 8,040 people in England were living with ANCA associated vasculitis. We estimate the prevalence was 14.55 (95% CI: 14.23-14.87)/100,000 adult population. The median age of these patients was 65.3 years (interquartile range 52.3-74.2). 47% were female. The prevalence of GPA was 9.97/100.000 (95% CI: 9.71-10.24), MPA was 1.40/100,000 (95% CI: 1.30-1.50), and EGPA was 3.18/100,000 (95% CI: 3.03-3.33). People with AAV were 4.6 times more likely to die than the background population of the same age and sex (Standardised Mortality Ratio = 4.58). Conclusion There are no recent UK prevalence estimates for all types of ANCA-associated vasculitis. Studies in Australia, Germany, Southern Sweden and the USA have found estimated prevalence to be between 4.6-18.4 cases per 100,000 individuals. Our estimate of 14.6/100,000 in England is consistent with this, and towards the higher end of the range. However, our estimates underestimate the prevalence of MPA compared to other studies, and further work is needed to increase the routine identification of cases of MPA. Further work within NCARDRS using their unique data linkages will enable more specific AAV case ascertainment as well as nationwide population-based studies on cause of death and studies using the database of English prescriptions dispensed in the community. Disclosures F.A. Pearce None. B. Griffiths None. C. Mukhtyar None. R. Al-Jayoussi None. R.A. Watts None. J. Aston None. M. Bythell None. S. Stevens None. P.C. Lanyon None.

scholarly journals ANCA-Associated Vasculitis with Cardiac Valve Vegetations in Two Teenage Males: A Case Report and Literature Review

2022 ◽  
Author(s):  
Alexandra Theisen ◽  
Martha Rodriguez
Keyword(s):  
Cardiac Involvement ◽  
Granulomatosis With Polyangiitis ◽  
Pediatric Population ◽  
Adult Population ◽  
High Dose ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Newly Diagnosed ◽  
Cardiac Morbidity ◽  
Anca Associated Vasculitis ◽  
Cardiac Manifestations

Abstract Background: Anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis is a term used to describe systemic vasculitides that affect small and medium-sized blood vessels. The three types of ANCA-associated vasculitis (AAV) are Granulomatosis with Polyangiitis (GPA), formerly Wegener’s granulomatosis , Microscopic Polyangiitis (MPA), and Eosinophilic Granulomatosis with Polyangiitis (EGPA), formerly Churg-Strauss, with clinical presentation most frequently involving the respiratory tract, the kidney, the skin and the joints. ANCA-associated vasculitis is rare in children, with estimated prevalence of 3-4 per million, and even more rare is the manifestation of cardiac abnormalities secondary to ANCA-associated vasculitis in the pediatric population. Case Presentation: We present the cases of two teenage males who presented with cardiac valvular lesions secondary to Granulomatosis with Polyangiitis in addition to sinus, pulmonary, renal, and cutaneous involvement. These findings of cardiac valvular abnormalities in GPA have rarely been described in the literature in pediatrics. Both patients were treated with rituximab, high-dose methylprednisolone, and plasma exchange (PLEX) and showed improvement in their disease manifestations. Conclusions: A review of the literature revealed only five pediatric cases of ANCA-associated vasculitis with cardiac manifestations, and interestingly, three of the five had valvular involvement. Subsequent valvular involvement makes obtaining the diagnosis of ANCA-Associated Vasculitis very difficult due to concern for underlying infectious endocarditis and can lead to misdiagnosis given the rarity of cardiac involvement in ANCA-associated vasculitis. Routine echocardiogram is not always completed in newly diagnosed GPA, yet cardiac involvement can lead to severe consequences as was seen with our first patient in the form of thromboembolic stroke. We discuss the importance of keeping AAV on the differential when cardiac lesions are present as well as the importance of regular cardiac screening in newly diagnosed patients with AAV, as it is a major factor of cardiac morbidity and mortality in the adult population and can contribute substantially to management decisions.

scholarly journals POS0830 FACTORS INFLUENCING PATIENT-REPORTED OUTCOMES IN ANCA-ASSOCIATED VASCULITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 668.2-669
Author(s):  
S. Monti ◽  
P. Delvino ◽  
C. Klersy ◽  
G. Coppa ◽  
A. Milanesi ◽  
...  
Keyword(s):  
Disease Activity ◽  
Global Assessment ◽  
Patient Reported Outcomes ◽  
Granulomatosis With Polyangiitis ◽  
Disease Duration ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Anca Associated Vasculitis ◽  
Organ Systems ◽  
Damage Accrual ◽  
Patient Reported

Background:Patient-reported outcomes (PROs) are currently poorly integrated in the clinical evaluation of disease activity in patients with ANCA-associated vasculitis (AAV).Objectives:To assess the distribution of the Patient Global Assessment (PtGA) in patients with AAV in stable remission, and to identify correlates of PtGA; to assess the discordance between PtGA score and PhGA.Methods:Patients with a diagnosis of AAV [eosinophilic granulomatosis with polyangiitis, granulomatosis with polyangiitis, microscopic polyangiitis] in stable, complete remission (defined by a BVAS=0) and with a Physician Global Assessment (PhGA)=0 were included. A questionnaire including several aspects of disease captured by PROs was collected. PtGA on a 0-100 mm visual analogue scale (VAS) was assessed, with higher scores representing higher/worse levels of disease activity. Similarly, VAS for pain, chronic damage according to the patient’s opinion, general health (GH), fatigue, and sleep quality were collected. The worst symptom in the patient’s opinion affecting the overall assessment of disease activity was recorded. The Cragg Hurdle model was used to assess the predictors of PtGA.Results:65 patients were included, female 57%, mean age 61±12 years. Mean disease duration at enrollment was 8±6 years. Mean vasculitis damage index (VDI) was 4.4 ±2.3, with 45% of patients having a VDI ≥ 5. Despite having been classified as being in remission, PtGA was elevated in 37% of patients. We explored several correlates of PtGA. Higher degree of damage accrual (VDI) did not influence the patient’s evaluation of current disease activity. Similarly, we did not identify a correlation between older age, educational level, number of organ-systems involved, number of comorbidities, the number of previous major or minor relapses, higher disease duration, nor the type of AAV diagnosis (figure 1, panel A). Only sex significantly correlated with PtGA scores: 19 (51%) of female patients reported an elevated PtGA compared to only 5 (18%) of male (p=0.009). PtGA resulted to be significantly correlated with other (mostly modifiable) PROs including VAS pain, perception of the level of chronic damage accrual, GH, and fatigue (figure 1, panel B). The agreement between patients’ and physicians’ assessments of disease activity was 63%. Patients reported pain, followed by chronic respiratory symptoms to be the worst-experienced ongoing manifestations affecting their evaluation of disease activity.Conclusion:A significant proportion of patients with AAV considered to be in remission by the physician still declares to have persistent aspects of uncontrolled disease. PtGA is significantly influenced by persistent pain and fatigue, which warrant better assessment in the future.Disclosure of Interests:None declared

scholarly journals Healthcare utilisation and cost expenditures for pneumonia in individuals with diabetes mellitus in the USA

2019 ◽  
Vol 147 ◽  
Author(s):  
K. Liu ◽  
G. C. Lee
Keyword(s):  
Diabetes Mellitus ◽  
Adult Population ◽  
Healthcare Utilisation ◽  
Population Based ◽  
Medical Expenditure ◽  
Inpatient Setting ◽  
Cross Sectional ◽  
Panel Surveys ◽  
Increased Risk ◽  
The Usa

AbstractPneumonia is one of the leading causes of hospitalisations among adults in the USA. Individuals with diabetes mellitus (DM) have been associated with increased risk for pneumonia and complications including death. The objectives of this study were to (1) compare the prevalence and healthcare utilisation patterns for pneumonia in individuals with and without DM, and (2) identify risk factors for pneumonia in those with DM. We performed a retrospective, cross-sectional analysis of the US adult population using Medical Expenditure Panel Surveys (MEPS) data from 2014. Overall, the data represented 24 million individuals with DM and 218 million without DM in the USA. The population-based rate for a pneumonia event was 34 per 1000 persons for individuals with DM and 19 per 1000 persons without DM. Compared to the non-DM group, individuals with DM were treated 1.8x, 2.6x and 1.4x more in the ED, hospital and outpatient, respectively. Furthermore, the average cost per pneumonia event was significantly higher among individuals with DM compared to non-DM in the inpatient setting ($11 931 vs. $7751; P < 0.001). Among individuals with DM, female sex, DM complications, smokers and administration of pneumococcal vaccines were significant factors associated with a pneumonia event.

scholarly journals Immunopathogenesis of ANCA-Associated Vasculitis

2020 ◽  
Vol 21 (19) ◽  
pp. 7319
Author(s):  
Andreas Kronbichler ◽  
Keum Hwa Lee ◽  
Sara Denicolo ◽  
Daeun Choi ◽  
Hyojeong Lee ◽  
...  
Keyword(s):  
Granulomatosis With Polyangiitis ◽  
Microscopic Polyangiitis ◽  
Autoimmune Disorder ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Proteinase 3 ◽  
Disease Biomarkers ◽  
Disease Phenotypes ◽  
Anca Associated Vasculitis ◽  
Clinical Presentations ◽  
Eosinophilic Granulomatosis

Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis is an autoimmune disorder which affects small- and, to a lesser degree, medium-sized vessels. ANCA-associated vasculitis encompasses three disease phenotypes: granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), and eosinophilic granulomatosis with polyangiitis (EGPA). This classification is largely based on clinical presentations and has several limitations. Recent research provided evidence that genetic background, risk of relapse, prognosis, and co-morbidities are more closely related to the ANCA serotype, proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA, compared to the disease phenotypes GPA or MPA. This finding has been extended to the investigation of biomarkers predicting disease activity, which again more closely relate to the ANCA serotype. Discoveries related to the immunopathogenesis translated into clinical practice as targeted therapies are on the rise. This review will summarize the current understanding of the immunopathogenesis of ANCA-associated vasculitis and the interplay between ANCA serotype and proposed disease biomarkers and illustrate how the extending knowledge of the immunopathogenesis will likely translate into development of a personalized medicine approach in the management of ANCA-associated vasculitis.

scholarly journals ANCA-associated vasculitis in a 14 years-old patient: a clinical case

2020 ◽  
Vol 27 (5) ◽  
pp. 184-194
Author(s):  
A. V. Burlutskaya ◽  
N. V. Savelyeva ◽  
N. S. Тaran
Keyword(s):  
Respiratory Failure ◽  
Immunosuppressive Therapy ◽  
Clinical Case ◽  
Granulomatosis With Polyangiitis ◽  
Systemic Vasculitis ◽  
Pulse Therapy ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Anca Associated Vasculitis ◽  
Nasal Bleeding ◽  
Diagnostic Research

Background. ANCA-associated systemic vasculitis is a rare childhood disease. Antineutrophil cytoplasmic autoantibodies (ANCA)-related vasculitises include microscopic polyangiitis, granulomatosis with polyangiitis and eosinophilic granulomatosis with polyangiitis. Their rarity often leads to a late diagnosis, rapid disability and high mortality in patients due to aggressive respiratory, pulmonary lesion and renal failure.Clinical Case Description. The patient suffered from a recurrent bronchoobstructive syndrome with signs of respiratory failure, obscure origin fever and chronic rhinitis with nasal bleeding for 6 months. The patient was diagnosed with obstructive bronchitis (putative bronchial asthma debut), received antibacterial therapy and inhalation bronchodilators without stable improvement during the entire period. Skin haemorrhages and arthralgia stimulated diagnostic research to establish ANCA-associated systemic vasculitis (presence of proteinase 3-specifi c ANCAs in titre 1/80). CT lung scanning revealed frosted glass foci of reduced pulmonary pneumatisation and signs of bilateral bronchoobstruction. Immunosuppressive therapy with glucocorticosteroids (methylprednisolone pulse therapy No. 3, 1000 mg intravenously on alternate days, subsequent per os administration of 1 mg/kg/day) and cyclophosphamide (500 mg intravenously once per 28 days) was prescribed. This led to the positive dynamics with eliminated fever and skin haemorrhages, as well as essentially reduced signs of respiratory failure.Conclusion. Diagnosis of systemic vasculitis is often complicated and long-term due to commonly non-specifi c debut symptoms of autoimmune disorders. In the described case, the fi rst 6 months of illness displayed intoxication and bronchoobstruction with signs of respiratory failure. Haemorrhagic rashes, arthralgias and the presence of ANCAs are proxy to vasculitis. Standard immunosuppressive therapy for ANCA-associated vasculitis improved the patient’s condition.

scholarly journals A Rare Case of Digital Ischemia and Gangrene in ANCA-Associated Vasculitis with Review of the Literature

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Richard A. Lau ◽  
Ramandeep Bains ◽  
Duminda Suraweera ◽  
Jane Ma ◽  
Emil R. Heinze ◽  
...  
Keyword(s):  
Granulomatosis With Polyangiitis ◽  
English Literature ◽  
Renal Involvement ◽  
Antineutrophil Cytoplasmic Antibody ◽  
High Dose ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Proteinase 3 ◽  
Anca Associated Vasculitis ◽  
Digital Ischemia

This paper describes one patient with Antineutrophil Cytoplasmic Antibody- (ANCA-) associated vasculitis who initially presented with multiple ischemic fingers and toes. On further evaluation, the patient was also found to have pulmonary-renal involvement and episcleritis. The diagnosis was supported with a positive cANCA (anti-proteinase 3) and a bronchoscopy consistent with diffuse alveolar hemorrhage. Although the patient refused a tissue biopsy, clinical presentation including nasal ulceration, sinus congestion, and epistaxis and anti-proteinase 3 antibody were more consistent with Granulomatosis with Polyangiitis (GPA) rather than Microscopic Polyangiitis (MPA) or Eosinophilic Granulomatosis with Polyangiitis (EGPA) based on the recently presented ACR/EULAR Provisional 2017 Classification Criteria for GPA (Luqmani et al., 2016). The patient responded well to therapy including high dose steroids and cyclophosphamide, with improvement of all organs involved and had no further digital ischemia or gangrene on follow-up. We include a review of the English literature summarizing presentation, management, and outcome of 16 similar cases.

scholarly journals POS1230 OUTCOME FOLLOWING COVID-19 INFECTION IN ANTI-NEUTROPHIL CYTOPLASMIC ANTIBODY (ANCA)-ASSOCIATED VASCULITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 898.2-898
Author(s):  
A. Antovic ◽  
B. Lövström ◽  
A. Hugelius ◽  
O. Borjesson ◽  
A. Bruchfeld ◽  
...  
Keyword(s):  
Maintenance Therapy ◽  
Immunosuppressive Therapy ◽  
Granulomatosis With Polyangiitis ◽  
Renal Involvement ◽  
Data Retrieval ◽  
Induction Treatment ◽  
High Dose ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Upper Airways ◽  
Anca Associated Vasculitis

Background:Patients with anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) require immunosuppressive therapy for disease control and reduction of disease relapse and may be at risk for complications during Sars-CoV-2 (COVID-19) infection.Objectives:To analyze the consequences of COVID-19 in a large cohort of AAV patients regarding occurrence, need of hospitalization, treatment at the intensive care units (ICU), or death.Methods:Data were retrieved from March 2020 to mid-January 2021 from medical records from the AAV cohort (n=233). Patients diagnosed with granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) or eosinophilic granulomatosis with polyangiitis (EGPA) were included. Data included age, gender, diagnosis, ongoing immunosuppressive medication at onset of COVID-19 or at last follow-up in non-COVID individuals. Renal involvement (ever) and estimated glomerular filtration rate (eGFR) were included. COVID-19 was confirmed either by a positive PCR test in the upper airways or by serology. Severe COVID-19 was defined as need of non-invasive ventilation, ICU care, and/or death.Results:The cohort comprised of 172 patients with GPA, 50 with MPA and 11 with EGPA. There were 121 females (52%). During the study period, 20 patients (8.6%) were diagnosed with COVID-19. The median age at data retrieval in all patients was 68 years (21-93), in the COVID-19 group 63 (29-93) and 68.5 (21-90) years in the non-COVID patients.Fourty-three patients in all (18%) were hospitalized during the study period of which 11 (4.7%) due to COVID-19 infection. In all, 8 deaths occurred of which 3 were related to COVID-19.At data retrieval, 110 (47%) patients were on prednisolone treatment, 10/20 (50%) in the COVID-19 group and 100 (47%) in the non-COVID-19 group (p=0.5), with significantly higher doses in COVID-19 patients (p<0.001). In patients hospitalized with COVID-19, 6/11 (54.5%) were on prednisolone, median dose 5 mg/day (0-50). In the total group 112 (48%) were on disease modifying anti-rheumatic drugs (DMARD) and 64 (27.5%) on rituximab as maintenance therapy. Eight patients were on induction treatment with either cyclophosphamide or rituximab.Of the 20 COVID-19 cases, 8 had severe COVID-19. Of these, 2 were inactive without immunosuppressive treatment, 4 had stable disease with prednisolone (5-7.5 mg/day) in combination with DMARDs, and 2 were active treated with high dose prednisolone (25-50 mg/day) in combination with cyclophosphamide and rituximab (n=1) or rituximab (n=1).A higher proportion of patients had active AAV (p=0.03) in the severe COVID-19 then in the non-COVID group (10/213 patients).In the group with the severe COVID-19, 1/8 (12%) patient had rituximab as maintenance therapy, compared to 61/213 (28.6%) in the group of non-COVID-19 patients (p=0.5).Renal involvement (ever) was present in 144 patients (62%), in 6 patients (30%) with COVID- 19, from which 5 (62%) were in the group of severe COVID-19 patients. Median eGFR did not differ between severe COVID-19 and remaining patients with renal involvement independently of COVID-19 infection.Conclusion:We found a high rate of severe COVID-19 infection in our cohort of AAV patients which indicates risk for serious complications, especially in patients with active disease and intense immunosuppressive therapy. Maintenance therapy with rituximab did not seem to increase the risk for severe COVID-19. The findings stress the need for continued shielding and early vaccination in AAV patients.Disclosure of Interests:None declared

scholarly journals Prevalence of large vessel vasculitis in ANCA-associated vasculitis: a retrospective cohort study

2021 ◽  
Author(s):  
Yann Coattrenec ◽  
Yannick D. Muller ◽  
David Spoerl ◽  
Johannes A. Lobrinus ◽  
Jörg D. Seebach
Keyword(s):  
Granulomatosis With Polyangiitis ◽  
Temporal Arteritis ◽  
Significant Proportion ◽  
Large Vessel Vasculitis ◽  
Large Vessel ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Anca Associated Vasculitis ◽  
Total Prevalence ◽  
Swiss Population ◽  
Eosinophilic Granulomatosis

AbstractANCA-associated vasculitis (AAV) in general involves small blood vessels and includes granulomatosis with polyangiitis (GPA), eosinophilic granulomatosis with polyangiitis (EGPA), and microscopic polyangiitis (MPA). Although reported in a few studies, the prevalence of large vessel vasculitis (LVV) in patients with AAV remains to be further explored. The goal of the present study was to assess the prevalence of LVV in a cohort of patients with AAV and to characterize this population. We conducted a ten-year retrospective study of a single-center cohort of AAV, including 101 patients with GPA (n = 58), EGPA (n = 28), MPA (n = 15), and compared the groups with or without associated LVV. LVV was diagnosed in five patients, two with aortitis and three with temporal arteritis, corresponding to a total prevalence of 5.0% [95% CI 1.6–11.2%]. This value was significantly higher than the estimated prevalence of LVV in the normal Swiss population (OR 234.9 95% CI 91.18–605.2, p < 0.001). All five patients had GPA, whereas no cases with EGPA or MPA were identified. Anti-PR3 antibodies were detected in four out of five patients, anti-MPO in one patient. Since LVV can occur in a significant proportion of patients with GPA, evaluation for LVV may be considered systematically in the diagnostic workup of AAV.

Association of venous thromboembolic events with skin, pulmonary and kidney involvement in ANCA-associated vasculitis: a multinational study

Rheumatology ◽  
2021 ◽  
Author(s):  
Sergey Moiseev ◽  
Andreas Kronbichler ◽  
Egor Makarov ◽  
Nikolay Bulanov ◽  
Matija Crnogorac ◽  
...  
Keyword(s):  
Granulomatosis With Polyangiitis ◽  
Antineutrophil Cytoplasmic Antibody ◽  
Eosinophilic Granulomatosis With Polyangiitis ◽  
Thromboembolic Events ◽  
The European Union ◽  
Similar Frequency ◽  
Anca Associated Vasculitis ◽  
Kidney Involvement ◽  
Venous Thromboembolic Events ◽  
Venous Thromboembolic

Abstract Objective To investigate the occurrence of venous thromboembolic events (VTE) in a large cohort of patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) across the European Union, Turkey, Russia, UK and North America. Methods Patients with a definite diagnosis of AAV who were followed for at least 3 months and had sufficient documentation were included. Data on VTE, including either deep vein thrombosis or pulmonary embolism, were collected retrospectively from tertiary vasculitis centres. Univariate and multivariate regression models were used to estimate odds ratios (ORs) and 95% CIs. Results Over a median follow-up of 63 (interquartile range: 29, 101) months, VTE occurred in 278 (9.7%) of 2869 AAV patients with a similar frequency across different countries (from 6.3% to 13.7%), and AAV subtype [granulomatosis with polyangiitis: 9.8% (95% CI: 8.3, 11.6%); microscopic polyangiitis: 9.6% (95% CI: 7.9, 11.4%); and eosinophilic granulomatosis with polyangiitis: 9.8% (95% CI: 7.0, 13.3%)]. Most VTE (65.6%) were reported in the first-year post-diagnosis. Multiple factor logistic regression analysis adjusted for sex and age showed that skin (OR 1.71, 95% CI: 1.01, 2.92), pulmonary (OR 1.78, 95% CI: 1.04, 3.14) and kidney [eGFR 15–60 ml/min/1.73 m2, OR 2.86 (95% CI: 1.27, 6.47); eGFR &lt;15 ml/min/1.73 m2, OR 6.71 (95% CI: 2.94, 15.33)] involvement were independent variables associated with a higher occurrence of VTE. Conclusion Two-thirds of VTE occurred during the initial phase of active disease. We confirmed previous findings from smaller studies that a decrease in kidney function, skin involvement and pulmonary disease are independently associated with VTE.

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