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Sökning: WFRF:(Rosenlund M.) > Chiesa F.

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1.
  • Montgomery, Scott, 1961-, et al. (författare)
  • Infections in patients with multiple sclerosis : a nationwide cohort study in Sweden
  • 2019
  • Ingår i: Multiple Sclerosis Journal. - : Sage Publications. - 1352-4585 .- 1477-0970. ; 25:Suppl. 2, s. 388-388
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Introduction: Previous studies suggest that susceptibility to infections is not raised among multiple sclerosis (MS) patients in general, but certain specific infections, such as those of the urinary or respiratory tract, are more common in patients with higher disability. However, contemporary MS cohorts to a higher degree are treated with newer disease-modifying treatments (DMTs) that exert stronger effects on the immune defence. Here we investigated the rate of infections in patients before and after MS diagnosis as compared with a matched MS-free population.Methods: Incident MS patients diagnosed in 2008-2016 were identified in the Swedish National Patient Register. MS patients were matched to 10 MS-free individuals by age, sex, and region of residence. Incidence rates per 10,000 person-years and incidence rate ratios (IRRs) of first infection by site and type were calculated after the MS diagnosis date.Results: In total, 6,602 MS patients were identified and compared with 61,828 without MS (female, 69%; median age, 40 years). During the year before MS diagnosis, MS patients showed higher proportions of urinary and kidney infections, meningitis and encephalitis, and bacterial infections compared with the MS-free cohort.After MS diagnosis, an increased risk of non-serious (IRR 1.65; 95% CI 1.56-1.75) and serious (admitted to hospital) infections (IRR 2.59; 95% CI 2.33-2.89) was detected among MS patients relative to the MS-free cohort. The risk of some bacterial (IRR 2.23; 95% CI 1.98-2.52) and some viral infections (IRR 1.70; 95% CI 1.48-1.96) was higher in MS patients of both sexes while only males showed an increased risk of fungal infections (IRR 1.91; 95% CI 1.26-2.89). Relative to the MS-free cohort, MS patients had an increased risk of all infection types, such as meningitis and encephalitis (IRR 6.16; 95% CI 4.47-8.48), other opportunistic infections (IRR 2.72; 95% CI 2.08-3.55), urinary and kidney infections (IRR 2.44; 95% CI 2.24-2.66), herpes virus (IRR 2.32; 95% CI 1.77-3.05), pneumonia and influenza (IRR 1.92; 95% CI 1.66-2.23), and skin infections (IRR 1.89; 95% CI 1.65-2.16).Conclusions: After MS diagnosis, patients had higher incidences of non-serious and serious infections compared with a cohort without MS. MS patients had an increased risk of being diagnosed during follow-up with most infection types compared with controls. This risk was particularly high for meningitis and encephalitis.
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2.
  • Montgomery, Scott, 1961-, et al. (författare)
  • Risk of osteoporosis and fractures in patients with multiple sclerosis : a nationwide cohort study in Sweden
  • 2019
  • Ingår i: Multiple Sclerosis Journal. - : Sage Publications. - 1352-4585 .- 1477-0970. ; 25:Suppl. 2, s. 387-388
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Introduction: While multiple sclerosis (MS) is usually diagnosed in young adults, many individuals living with the diagnosis are above age 40 years. Osteoporosis and fractures, which are morbidities generally associated with ageing but also physical inactivity, were determined in patients before and after MS diagnosis and compared with a matched MS-free population.Methods: Incident MS patients diagnosed in 2008-2016 were identified in the Swedish National Patient Register and matched with 10 MS-free individuals by age, sex, and region of residence. Incidence rates (IR) per 10,000 person-years and incidence rate ratios (IRRs; vs the MS-free cohort) of osteoporosis and fractures by sex and age at event were calculated after MS diagnosis based on ICD-10 codes from inpatient and outpatient specialist care.Results: In total, 6,602 MS patients were identified and compared with 61,828 without MS (female, 69%; median age, 40 years). Before MS diagnosis, MS patients showed significantly increased proportions of osteoporosis (0.5% vs 0.3%) and fractures (12.6% vs 11.4%) compared with the MS-free cohort.After diagnosis, MS patients had an increased risk of osteoporosis (IRR 1.69; 95% confidence interval [CI] 1.22-2.35). The increased risk of osteoporosis among MS patients was observed for both sexes (females, IRR 1.60; 95% CI 1.13-2.28 and males, IRR 2.56; 95% CI 1.04-6.31), as well as in the older age strata 40-59 years (IRR 2.39; 95% CI 1.47-3.89) and ⩾60 years (IRR 1.69; 95% CI 1.06-2.70), but not among those aged < 40 years. Similarly, an increased risk of fractures among MS patients (IRR 1.37; 95% CI 1.24-1.51) was shown for both females (IRR 1.40; 95% CI 1.25-1.58) and males (IRR 1.29; 95% CI 1.07-1.55), as well as the age strata 40-59 years (IRR 1.52; 95% CI 1.31-1.76) and ⩾60 years (IRR 1.92; 95% CI 1.58-2.33), but not those aged < 40 years.Conclusions: The risk of osteoporosis and fractures was moderately increased in MS patients of both sexes and in the older age groups, which may relate to physical inactivity and an increased risk of falls.
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  • Piehl, F., et al. (författare)
  • Cardiovascular disease in patients with multiple sclerosis : a nationwide cohort study in Sweden
  • 2019
  • Ingår i: Multiple Sclerosis Journal. - : Sage Publications. - 1352-4585 .- 1477-0970. ; 25:Suppl. 2, s. 49-50
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Introduction: The cardiovascular disease (CVD) rate among multiple sclerosis (MS) patients has been shown to be elevated; however, studies involving more recently diagnosed patients are rare. Here we estimated the rate of CVD in patients before and after MS diagnosis as compared with a matched MS-free population.Methods: Incident MS patients diagnosed in 2008-2016 were identified in the Swedish National Patient Register. MS patients were matched with 10 MS-free individuals by age, sex, and region of residence. Incidence rates (IR) per 10,000 person-years (PY) and incidence rate ratios (IRR) of cardiovascular outcomes were calculated after MS diagnosis (equivalent date for those without MS) and among those with no history of CVD before this date.Results: In total, 6,602 MS patients and 61,828 without MS (female, 69%; median age, 40 years) were identified. Before MS diagnosis, patients showed higher proportions of stroke (2.0% vs 0.6%), transient ischaemic attack (TIA) (0.4% vs 0.2%) and peripheral vascular disease (0.3% vs 0.2%) compared with the MS-free cohort. The year before MS diagnosis, larger proportions were prescribed diuretics (8.4% vs 6.9%), peripheral vasodilators (1.4% vs 1.0%), lipid-modifying agents (5.6% vs 4.8%), and calcium channel blockers (3.7% vs 3.1%).After MS diagnosis, patients had a higher risk of major adverse cardiovascular events (MACE) (IRR 1.35; 95% confidence interval [CI] 1.06-1.71), heart failure (HF) (IRR 1.36; 95% CI 1.02-1.80), and TIA (IRR 1.59; 95% CI 1.05-2.42) compared with the MS-free cohort. The risk of bradycardia (IRR, 2.61; 95% CI 1.14-5.97) was higher only in MS patients with no history of CVD. CVD incidence rates in MS patients were comparable between sexes except for the HF rate, which was higher among males (28.28 per 10,000 PY, 95% CI 18.79-40.87) than females (11.81 per 10,000 PY, 95% CI 7.71-17.30). The relative risk of MACE (IRR 2.40; 95% CI 1.15-5.00), TIA (IRR 7.03; 95% CI 2.62 -18.87), HF (IRR 3.28; 95% CI 1.46-7.37), and bradycardia (IRR 4.51; 95% CI 1.54-13.20) were higher among younger MS patients (aged < 40 years at diagnosis).Conclusions: After MS diagnosis, MS patients showed an increased incidence of MACE, TIA, and HF compared with those without MS, irrespective of CVD history. The age-matched rela-tive risk was particularly high among younger MS patients. In particular, the relative risk of bradycardia was only higher among younger patients and patients with no history of CVD.
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5.
  • Piehl, F., et al. (författare)
  • Risk of comorbidity in patients with multiple sclerosis : a nationwide cohort study in Sweden
  • 2019
  • Ingår i: Multiple Sclerosis Journal. - : Sage Publications. - 1352-4585 .- 1477-0970. ; 25:Suppl. 2, s. 102-102
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Introduction: Substantial progress in the treatment of multiple sclerosis (MS) has been made since the 1990s. However, the presence of comorbidity and the impact of treatment are less defined. Here we determined rates of comorbidity before and after MS diagnosis as compared with a matched MS-free population.Methods: A national incident MS cohort diagnosed in 2008-2016 was identified in the Swedish National Patient Register with data further linked to the national Prescribed Drug Register and Cause of Death Register. In addition, a sub-cohort of MS patients was identified in the electronic medical records (EMR) of the Karolinska University Hospital. MS patients were matched with and compared to 10 MS-free individuals by age, sex, and region of residence. Incidence rates (IR) per 10,000 person-years and incidence rate ratios (IRR) of comorbidities were calculated after MS diagnosis.Results: In total, 6,602 MS patients were identified in the national cohort and were compared with 61,828 MS-free controls (female, 69%; median age, 40 years), while a sub-cohort from one hospital of 1,289 patients had a MS diagnosis recorded in EMR and was compared with 11,721 individuals without MS (female, 68%; median age, 37 years). The national MS cohort had higher proportions before MS diag-nosis compared with MS-free controls of autoimmune disease (1.3% vs 0.7%), bladder dysfunction (1.2% vs 0.2%), retinal disorders (2.4% vs 1.2%) and epilepsy (1.5% vs 0.8%). Similar patterns were observed for the single-hospital cohort, except for epilepsy. Bipolar disorder was more common among single-hospital MS patients (1.6% vs 0.7%).After MS diagnosis, patients in the national cohort had higher IR compared with MS-free controls of autoimmune disease (IRR 3.60; 95% confidence interval [CI], 2.88-4.51), bladder dysfunction (IRR 47.44; 95% CI, 36.81-61.14) and epilepsy (IRR 2.36; 95% CI, 1.75-3.17). Similar patterns were observed in the single-hospital cohort. Toxic liver disease was higher (IRR 3.51; 95% CI 1.37-8.98) in the MS cohort in the national cohort only, while bipolar disorder was higher only in the single-hospital cohort (IRR 1.88; 95% CI 1.10-3.22).Conclusions: Before a diagnosis of MS, patients already displayed an increased rate of comorbidity compared with MS-free controls. After diagnosis, patients with MS continued to display increased risk of several comorbidities, some of which may be explained by surveillance bias due to more frequent contact with healthcare.
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