Hepatitis B Clinical Trial
Official title:
Incidence of Hepatitis B Diagnosis Among Diabetes Mellitus Patients of 0-80 Years of Age, in the United Kingdom Clinical Practice Research Datalink (CPRD)
This study is being conducted to assess the risk of hepatitis B (HepB) diagnosis among diabetes mellitus (DM) and non-DM patients of 0-80 years of age with in a large population-based cohort in United Kingdom (UK) using data from the CPRD database.
Status | Completed |
Enrollment | 161429 |
Est. completion date | January 2015 |
Est. primary completion date | January 2015 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | N/A to 80 Years |
Eligibility |
Inclusion Criteria: - Subjects, 0 to 80 years of age during the study period. - Subjects acceptable for research as per CPRD definition: - Acceptable flag for research. - Subjects with at least 12 months of observation time at the time of inclusion in the study: - Subjects have to be registered in the CPRD database for at least 12 months at the date of inclusion in the study. - Subjects have to be registered in a general practitioner practice classified as 'up to standard' for at least 12 months at the date of inclusion in the study. - Particular Case of New Born Children. - To ensure inclusion of subjects less than 1 year of age, they will be included regardless their observation time in CPRD. - Inclusion Date - Inclusion criteria will be assessed for each calendar year between the Years 2000 and 2012. Exclusion Criteria: • For the analyses requiring the inclusion of HES data, HES records linked with more than one CPRD patient will be excluded from the analyses. |
Observational Model: Cohort, Time Perspective: Retrospective
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
GlaxoSmithKline |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Occurrence of new HepB diagnosis among patients between 0-80 years of age previously diagnosed with DM, between 2000 and 2012, in the UK CPRD or Hospital Episodes Statistics (HES). | Up to 12 years | No | |
Primary | Occurrence of new HepB diagnosis among non-DM patients between 0-80 years of age, in the UK CPRD or HES. | Up to 12 years | No | |
Secondary | Hospitalisation episode recorded in HES due to HepB infection or complications among patients between 0-80 years of age previously diagnosed with DM and in DM-free (non-DM) patients, in the UK, for whom CPRD-HES linkage is available. | Up to 12 years | No | |
Secondary | All cause mortality among HepB cases in the DM and DM-free (non-DM) patients between 0-80 years of age, in the UK. | Up to 12 years | No | |
Secondary | HepB cause-specific mortality among DM and DM-free (non-DM) patients between 0-80 years of age, in the UK for whom CPRD-ONS mortality linkage is available. | Up to 12 years | No | |
Secondary | New-onset or prevalent HepB diagnosis among new-onset or prevalent DM and DM-free (non-DM) patients between 0-80 years of age, in the UK, regardless of the onset of HepB in relation to the diagnosis of DM. | Up to 12 years | No |
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