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Impact of Socioeconomic Inequalities in Transition Between Health, Multimorbidity and Death Amongst Older People

17 november 2015 uppdaterad av: Harry Hemingway, University College, London

What is the Impact of Socioeconomic Inequalities in the Rates of Transition Between Health, Multimorbidity and Death Amongst Older People in England?

Life expectancy at age 65 in the most deprived fifth of the English population was about 4 years shorter than of the most affluent fifth in 2010. The inverse gradient between mortality and social position is well established. But how disease patterns and multimorbidity (having two or more long term conditions at the same time) impact on differential mortality rates is inconclusive: is it because disadvantaged groups acquire more or more lethal combinations of, diseases over their life course; or, simply, become ill at ages younger than more affluent groups?

Studieöversikt

Status

Okänd

Betingelser

Detaljerad beskrivning

The association between social inequality and cause-specific mortality and single disease morbidity has been studied extensively. However, it remains unclear whether having two or more chronic diseases concurrently (or 'multimorbidity') plays a role in contributing to the inequalities gap in survival. This is particularly relevant given an ageing population and the trend of a widening in the life expectancy gap across several European countries.

Multimorbidity incidence increases rapidly with age. Estimates of the prevalence of multimorbidity in older people range from 55% to 98%, mainly due to the selection of diseases included, population coverage (hospital, community) and data source (self-reported surveys or clinical records). However, across all studies there is a clear and consistent pattern of higher prevalence rates at older ages, with multimorbidity.

Many aspects of the patient health trajectory remain under-explored. Patient case-mixes are likely to vary across socioeconomic groups, alongside a host of prognostic factors, including the clustering of multiple risk factors, age of onset, and disease presentation, progression and management in the presence of multiple health conditions.

Studietyp

Observationell

Inskrivning (Förväntat)

1300000

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

      • London, Storbritannien, WC1 E7H
        • University College London

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

45 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

Patients included in the CALIBER dataset.

Beskrivning

Inclusion Criteria:

  • Registered with a participating practice that has agreed to data linkage
  • Registered with an 'up to standard' participating general practice for at least 1 year
  • Aged 45 and over on Jan 1st 2001 or who turn 45 between 1st Jan 2001 and 25th March 2010, irrespective of initial health status.

Exclusion Criteria:

  • Patients with a record unlinked to deprivation due to missing or incomplete postcode of residence.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
Healthy
Patients without any of the pre-specified chronic diseases
This study is based on the retrospective analysis of linked electronic health records.
Multimorbid
Patients having any two or more of the pre-specified chronic diseases
This study is based on the retrospective analysis of linked electronic health records.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Yearly multimorbidity incidence rate
Tidsram: 10 years

Numerator: Of patients with either 0 or 1 chronic diseases as on 1st Jan of the year, all those who become multimorbid by 31st Dec of the year.

Denominator: patient years at risk of patients with either 0 or 1 chronic diseases as on 1st Jan of the year

10 years
Yearly multimorbidity prevalence
Tidsram: 10 years
Numerator: all those with 2 or more listed diseases on 1st July of the year. Denominator: All eligible patients on 1st July of the year, irrespective of disease status on that date.
10 years
Yearly all-cause mortality rates
Tidsram: 10 years

Numerator: number of deaths until 31st Dec of the year amongst the patients included in the denominator.

Denominator: Person years at risk of patients with 0,1,2 or more diseases on 1st Jan of the year.

10 years
Overall life expectancy
Tidsram: 10 years
Incident rates of transitions between no disease, 1 disease, 2+ diseases, and death.
10 years
Health state-specific life expectancies
Tidsram: 10 years
Incident rates of transitions between four health states - no disease, 1 disease, 2+ diseases, and death.
10 years

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Yearly non-accidental mortality rates
Tidsram: 10 years
As outcome 3 but excluding accidental deaths from the numerator
10 years

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Samarbetspartners

Utredare

  • Studierektor: Madhavi Bajekal, PhD, University College, London

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 januari 2015

Primärt slutförande (Faktisk)

1 september 2015

Avslutad studie (Förväntat)

1 januari 2017

Studieregistreringsdatum

Först inskickad

17 november 2015

Först inskickad som uppfyllde QC-kriterierna

17 november 2015

Första postat (Uppskatta)

20 november 2015

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

20 november 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

17 november 2015

Senast verifierad

1 november 2015

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • 14_179

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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