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- Mossberg, M., et al.
(författare)
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Epidemiology of primary systemic vasculitis in children: a population-based study from southern Sweden
- 2018
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Ingår i: Scandinavian Journal of Rheumatology. - : TAYLOR & FRANCIS LTD. - 0300-9742 .- 1502-7732. ; 47:4, s. 295-302
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To estimate the annual incidence rate of paediatric primary systemic vasculitis (PSV) in a defined geographical area in southern Sweden.Methods: Potential cases of PSV [IgA vasculitis (IgAV, Henoch-Schonlein purpura), Kawasaki disease (KD), granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), eosinophilic granulomatosis with polyangiitis (EGPA), polyarteritis nodosa (PAN), and Takayasus arteritis (TAK)] were identified in a comprehensive regional healthcare register. The study area is Skane, the southernmost county of Sweden (population 1.29 million; 21.4% aged amp;lt;18years). Case records for children (0-17years) assigned a diagnosis code between M300 and M319 and/or D690 were reviewed to ascertain diagnosis. Only patients diagnosed between 2004 and 2014 were included.Results: In total, 556 patients with PSV were identified. The annual incidence rate per million children (95% confidence interval) was estimated to be 200 (183-217) for all PSV, 175.5 for IgAV (160-191), 20.1 for KD (14.9-25.4), 1.4 (0-2.8) for each of GPA and MPA, 0.7 (0-1.7) for PAN, and 0.4 (0-1.1) for each of EGPA and TAK. Among children aged amp;lt;10years, 99.5% of cases were either IgAV or KD, both exhibiting a seasonal pattern paralleling infections. There were no deaths, but three cases of end-stage renal disease were noted, all in MPA.Conclusions: Vasculitis is relatively common during childhood. Mild cases associated with the infection season are most common in the youngest age groups, while during adolescence a substantial proportion has more severe forms of vasculitis.
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- Wang, Ying, et al.
(författare)
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Enhancement of iridium-based organic light-emitting diodes by spatial doping of the hole transport layer
- 2005
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 87:19, s. 193501-
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Tidskriftsartikel (refereegranskat)abstract
- The electroluminescence efficiency of Ir-based green emitter devices is very sensitive to the nature of the hole transport layer used. We show that by inserting a 1 nm layer of bis[4-(N,N-diethylamino)-2-methylphenyl](4- methylphenyl)methane (MPMP) in a 4, 4′ - bis- (carbazol-9-yl) biphenyl (CBP) hole transport layer, a device that combines the positive attributes of both MPMP (high efficiency) and CBP (low injection voltage) is obtained. These results can be understood based on a combined ultraviolet photoemission spectroscopy/inverse photoemission spectroscopy study, which reveals the very low electron affinity and superior electron blocking capability of MPMP. © 2005 American Institute of Physics.
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