JAMA network open
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Multicenter Study
Association of Long-term Strenuous Physical Activity and Extensive Sitting With Incident Radiographic Knee Osteoarthritis.
Persons with knee symptoms recognize the health benefits of engaging in physical activity, but uncertainty persists about whether regular strenuous physical activity or exercise can accelerate tissue damage. A sedentary lifestyle of inactivity or underloading may also be associated with deleterious joint health. ⋯ Results from this study appeared to show no association between long-term strenuous physical activity participation and incident radiographic KOA. The findings raise the possibility of a protective association between incident KOA and a low-to-moderate level of strenuous physical activities.
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Multicenter Study
Comparative Effectiveness of Antibiotic Treatment Duration in Children With Pyelonephritis.
National guidelines recommend treating children with pyelonephritis for 7 to 14 days of antibiotic therapy, yet data are lacking to suggest a more precise treatment duration. ⋯ The study findings suggest that short-course antibiotic therapy may be as effective as prolonged-courses for children with pyelonephritis, and may mitigate the risk of future drug-resistant urinary tract infections. Additional studies are needed to confirm these findings.
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Multicenter Study
Prevalence, Incidence, and Sensitization Profile of β-lactam Antibiotic Allergy in Hong Kong.
Allergy to β-lactam antibiotics is one of the most frequently reported drug reactions, but epidemiological data in Chinese populations are lacking. Ethnic- and region-specific sensitization patterns of skin testing for β-lactam antibiotic allergy are also unknown. ⋯ Results of this study suggest that patients in Hong Kong with β-lactam antibiotic allergy had much higher rates of monosensitization to benzylpenicilloyl polylysine and benzylpenicilloate, making these reagents essential in β-lactam antibiotic skin tests. Such a finding warrants future studies into whether this sensitization is specific to ethnicity or region.