Publications by authors named "Henry Ngo"
Objectives: The burden of acute gastrointestinal illness (AGI) attributable to natural water recreation in Canada is unknown. Understanding the burden can help prioritize public health interventions and resource allocation for reduction of disease. Our objectives were to compile estimates of AGI burden associated with natural water recreation, identify knowledge gaps in water recreation epidemiology, and evaluate methods applicable for developing a burden estimate for Canada.
View Article and Find Full Text PDFObjectives: The burden of disease associated with acute gastrointestinal illness (AGI) in Canada is estimated to be ~ 20 million cases/year. One known risk factor for developing AGI is recreation in freshwater bodies such as lakes. The proportion of cases attributable to freshwater recreation in Canada, however, is currently unknown.
View Article and Find Full Text PDFBackground: Studies show that more than 5.1 million deaths annually are attributed to nonoptimal temperatures, including extreme cold and extreme heat. However, those studies mostly report average estimates across large geographical areas.
View Article and Find Full Text PDFArticle Synopsis
- Congenital anomalies (CA) significantly contribute to infant mortality and disability, prompting the need for effective surveillance systems to monitor these conditions, particularly through health administrative data.
- This study validated case definition algorithms for CA surveillance in British Columbia by linking birth data with health registries, measuring metrics like positive predictive value (PPV) and sensitivity to assess accuracy.
- Results indicated variable algorithm performance, with higher accuracy for easily recognizable conditions at birth; this suggests that other regions could adopt similar validated definitions to improve CA monitoring and facilitate comparisons across jurisdictions.
Corrigendum to "Spontaneous Resolution of Symptomatic Hepatic Sarcoidosis".
Case Rep Gastrointest Med
November 2018
[This corrects the article DOI: 10.1155/2018/1535049.].
View Article and Find Full Text PDFSarcoidosis is an inflammatory process of unknown etiology, characterized by noncaseating granulomas. Isolated extrapulmonary disease is rare. We present a case of a 60-year-old woman with chronically elevated alkaline phosphatase.
View Article and Find Full Text PDFPurpose: Subject motion during positron emission tomography (PET) brain scans can reduce image quality and may lead to incorrect biological outcome measures, especially for data acquired with high resolution tomographs. A semiautomatic method for assessing the quality of frame-to-frame image realignments to compensate for subject motion in dynamic brain PET is proposed and evaluated.
Methods: A test set of 256 11C-raclopride (a dopamine D2-type receptor antagonist) brain PET image frames was used to develop and evaluate the proposed method.
Submillimetre surveys during the past decade have discovered a population of luminous, high-redshift, dusty starburst galaxies. In the redshift range 1