Long-term Follow Up of Patients in the Birmingham and Lambeth Liver Evaluation Strategies (BALLETS) Study
This study will follow-up a cohort of patients from the Birmingham and Lambeth Liver Evaluation Strategies (BALLETS) study using a database search based on their individual National Health Service (NHS) numbers. The investigators will interrogate the Hospital Episode Statistics database and the Office of National Statistics database, and examine three categories of end points: death, inpatient attendance primarily due to liver disease, and outpatient attendance primarily due to liver disease.
A logistic regression analysis will then be conducted to determine associations between these end points and the presence, and degree, of fatty liver in the original BALLETS study, adjusted for age, sex, alcohol intake, BMI, and baseline ALT measurement.
Aperçu de l'étude
Description détaillée
The Birmingham and Lambeth Liver Evaluation Strategies (BALLETS) study was a prospective study of people in General Practice who had an abnormal liver function test result. Recruitment took place between 2005 and 2008, and patients were able to be grouped into four primary categories: hepato-cellular disease, hepato-biliary disease, tumour, non-specific with or without fatty liver. This study will focus on the fourth, non-specific, group of which there were 1,237 patients.
This study will follow-up this cohort of patients using a database search based on their individual National Health Service (NHS) numbers. The investigators will interrogate the Hospital Episode Statistics database (health outcomes) and the Office of National Statistics database (death), and examine three categories of end points: death, inpatient attendance primarily due to liver disease, and outpatient attendance primarily due to liver disease. Deaths would be sub-categorised as including liver disease, or not.
A logistic regression analysis will then be conducted to determine associations between these end points and the presence, and degree, of fatty liver in the original BALLETS study, with adjustment for age and sex. Similar age- and sex-adjusted analyses will be conducted to investigate the association with other patient risk factors - alcohol intake and BMI. The analyses will be repeated incorporating an additional adjustment for baseline Alanine Aminotransferase (ALT) measurement.
Type d'étude
Inscription (Réel)
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Adult with abnormal liver function test (LFT) result
Exclusion Criteria:
- Pre-existing or obvious liver disease
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Non-specific liver disease
Patients who were categorised as having a non-specific liver disease in the original BALLETS study.
|
Cohort were not exposed to any intervention.
There information will be analysed from database searches.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Number of Patients who Died
Délai: From date of recruitment until the date of death, up to 14 years
|
Death of patient, sub-categorised as either including liver disease, or liver disease not mentioned
|
From date of recruitment until the date of death, up to 14 years
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Number of patients attending inpatient department, primary reason liver disease
Délai: From date of recruitment until the date of database search, up to 14 years
|
Number of patients attending hospital inpatient department, with their primary reason for attendance being liver disease, as measured by the hospital episode statistics database.
|
From date of recruitment until the date of database search, up to 14 years
|
|
Number of patients attending outpatient department, primary reason liver disease
Délai: From date of recruitment until the date of database search, up to 14 years
|
Number of patients attending hospital outpatient department, with their primary reason for attendance being liver disease, as measured by the hospital episode statistics database.
|
From date of recruitment until the date of database search, up to 14 years
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Richard J Lilford, FMedSci, University of Warwick
Publications et liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- BALLETS-LT-Followup
Plan pour les données individuelles des participants (IPD)
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Description du régime IPD
Informations sur les médicaments et les dispositifs, documents d'étude
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