A190 SEROPREVALENCE OF HEPATITIS B VIRUS IN ASIAN CANADIANS WHO ARE UNAWARE OF THEIR HBV STATUS IN GREATER VANACOUVER
Notice bibliographique
Résumé
The seroprevalence of hepatitis B virus (HBV) is 0.4% in Canada, but varying rates has been reported in different populations. Up to 40% of HBV carriers have no knowledge of their diagnosis, which highlights the need to identify and manage these patients who are at risk of significant morbidity and mortality via chronic hepatitis and its complications. In 2015, a small pilot study conducted in the Lower Mainland showed a higher-than-expected rates of active hepatitis B in Asians, but larger scale studies were needed to validate their findings. To determine the seroprevalence of HBV among attendees of Asian health events who had no prior knowledge of their hepatitis B status in Greater Vancouver, British Columbia. Attendees at Asian health events hosted by the Canadian Liver Foundation who had no knowledge of their hepatitis B status were invited to participate in the study on a voluntary basis. They provided answers to a questionnaire including age, ethnicity, years lived in Canada, and other medical history. Blood was then drawn for HBV serologies with their consent. Active HBV was defined as HBV surface antigen (HBsAg) positive. Only those with correct demographic information matched to serological results were included in the study. Comparisons among response groups were calculated using Fisher’s exact test; P<0.05 was considered to be statistically significant. There were 2210 consenting attendees of the fairs, of whom 2202 were included in the study. The median age was 65 years. The majority of participants (76%) were Chinese. These participants had resided in Canada for an average of 28.3 years. Active HBV infection was found in 39 participants (1.8% [95% CI 1.5% to 2.1%]). Almost all of the participants (97.0%) had a family physician. No significant differences were found between the HBV carriers vs. non-HBV carriers, including age, number of years resided in Canada, or place of birth. The seroprevalence of HBV in Asian Canadians living in Greater Vancouver who had no prior knowledge of their HBV status was 1.8%--higher than nationally reported rates. Our results highlight that the lack of awareness of HBV infection remains a significant clinical issue in the Asian community of Greater Vancouver. Comparison of characteristics between HBV carriers vs. non-HBV carriers. Canadian Liver Foundation
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,001 |
| Bibliométrie | 0,002 | 0,003 |
| Études des sciences et des technologies | 0,004 | 0,001 |
| Communication savante | 0,001 | 0,000 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,003 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».