Publications by authors named "J H Olsen"

Background: Nursing home (NH) residents are frequently treated with antibiotics for urinary tract infections (UTIs), often due to overdiagnosis. The aim of this study was to evaluate the proportion of potentially unnecessary antibiotic use for suspected UTIs in NHs across eight European countries.

Research Design And Methods: Over a three-month period (February to April 2024), NH professionals recorded information on all antibiotic treatments for UTIs using a specific registration chart.

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Single-cell proteomics (SCP) promises to revolutionize biomedicine by providing an unparalleled view of the proteome in individual cells. Here, we present a high-sensitivity SCP workflow named Chip-Tip, identifying >5,000 proteins in individual HeLa cells. It also facilitated direct detection of post-translational modifications in single cells, making the need for specific post-translational modification-enrichment unnecessary.

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Background: Brain disorders (neurological and mental disorders) are common and burdensome diseases. We examined occurrence, mortality, and economic burden of brain disorders in Denmark from 2015 to 2021.

Methods: We conducted a nationwide population-based cohort study using individual-level registry data.

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Background And Purpose:  In contemporary medial unicompartmental knee arthroplasty (mUKA), non-lateral patellofemoral osteoarthritis (PFOA) is not considered a contraindication. However, we still lack knowledge on the association of PFOA severity on patient reported outcome measures (PROMs) after mUKA. We aimed to examine the association between PFOA severity and PROM-score changes after mUKA.

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Traditionally, excitation energies in coupled-cluster (CC) theory have been calculated by solving the CC Jacobian eigenvalue equation. However, based on our recent work [Jørgensen et al., Sci.

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