Background: Though a newly developed spectral domain optical coherence tomography (OCT) is at the center of interests for many ophthalmologic researchers and clinicians, its own characteristics are not fully evaluated yet. The main purpose of this study was to establish the adjusted color probability codes for peripapillary retinal nerve fiber layer (RNFL) thickness in healthy Koreans and to compare them with original color codes provided by spectral domain OCT.
Methods: Two hundred ninety-five healthy Korean eyes were enrolled and their peripapillary RNFL thickness was measured by Cirrus OCT. For each decade of age, the normal thickness reference was determined on the basis of z-scores and the adjusted color probability codes were established. Then the agreements between adjusted and original color codes were calculated using weighted Kappa (Kw) coefficient.
Results: On the basis of Kw coefficient, the overall agreement between the adjusted and original probability color codes was not excellent (Kw range of 0.500 to 0.806). If the adjusted probability codes were assumed as a standard of comparison, the original color codes showed the false-negative in 11% of eyes and the false-positive in 0.3% of eyes for average RNFL thickness.
Conclusions: Adjusted color probability codes judged by the Korean normative data showed a discrepancy with original codes. It implies that normal reference and adjusted probability codes for each ethnicity might be needed to determine whether a certain RNFL thickness is within normal range or not.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995502 | PMC |
| http://dx.doi.org/10.1186/1471-2415-14-38 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The impact of recreational cannabis retailer allocation on emergency department visits: A natural experiment utilizing lottery design.
Int J Drug Policy
January 2025
School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada. Electronic address:
Background: In October 2018, Canada legalized recreational cannabis, with Ontario distributing retailer licenses through a lottery system in 2019. This study investigates the impact of recreational cannabis retailer allocation on emergency department (ED) visits related to cannabis, alcohol, and opioids.
Method: A longitudinal study of 278 communities in Ontario (proxied by Forward Sortation Areas, FSAs) was conducted using health administrative data from ICES for all Ontario residents covered by public health insurance.
Psychiatric, Neurological, and Somatic Comorbidities in Intermittent Explosive Disorder.
JAMA Psychiatry
January 2025
Department of Psychiatry and Behavioral Sciences, Norton College of Medicine, SUNY Upstate Medical University, Syracuse, New York.
Importance: Intermittent explosive disorder (IED) is an understudied psychiatric condition marked by impulsive aggression and poorly regulated emotional control, often resulting in interpersonal and societal consequences. Better understanding of comorbidities can improve screening, diagnosis, and treatment.
Objective: To investigate the prevalence of IED and its associations with psychiatric, neurological, and somatic disorders.
Use of Claims to Assess Outcomes and Treatment Effects in the Evolut Low Risk Trial.
Circ Cardiovasc Interv
January 2025
Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, MA (C.L., A.T., Y.S., J.S., R.W.Y.).
Background: Food and Drug Administration-mandated postmarket studies for transcatheter aortic valve replacement in low-risk populations plan to use passively collected registry data linked to claims for long-term follow-up out to 10 years. Therefore, it is critically important to understand the validity of these claims-based end points. We sought to evaluate the ability of administrative claims with () codes to identify trial-adjudicated end points and reproduce treatment comparisons of aortic valve replacement in the Evolut Low Risk Trial.
View Article and Find Full Text PDFOptimising Instrumented Mouthguard Data Analysis: Video Synchronisation Using a Cross-correlation Approach.
Ann Biomed Eng
January 2025
Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, UK.
Purpose: Head acceleration events (HAEs) are a growing concern in contact sports, prompting two rugby governing bodies to mandate instrumented mouthguards (iMGs). This has resulted in an influx of data imposing financial and time constraints. This study presents two computational methods that leverage a dataset of video-coded match events: cross-correlation synchronisation aligns iMG data to a video recording, by providing playback timestamps for each HAE, enabling analysts to locate them in video footage; and post-synchronisation event matching identifies the coded match event (e.
View Article and Find Full Text PDFAdditive interaction of conjoint tobacco smoking and heavy drinking on hypertension prevalence in rural Uganda: a community-based cross-sectional study.
BMC Public Health
January 2025
Department of Disease Control and Environmental Health, Makerere University School of Public Health, Kampala, Uganda.
Background: The prevalence of hypertension is high in Uganda, which places a significant burden on an already strained healthcare system. The behavioural risk factors, such as unhealthy diet, tobacco use, physical inactivity, and heavy drinking, contribute to hypertension development and complications. This study explored the associations of combined tobacco smoking and heavy alcohol consumption with existing hypertension in a community-based cross-sectional study conducted in two rural districts of Uganda.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!