disability-adjusted life year
Let an agent explain what a disability-adjusted life year is and how it is calculated, relay burden estimates from WHO and the Global Burden of Disease study with dates and sources, present methodological debates with attribution, and avoid applying the measure to individuals.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Claude
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Define What the measure is.
Definition
Definition.
Definition
Definition.
- What is a DALY, and what do its two components represent? definition
- Is the question about DALYs or about QALYs or life expectancy? boundary
Calculation
Calculation.
Calculation
Calculation.
- How are years of life lost and years lived with disability calculated, and which weights and life tables are used? measurement
- Which methods edition is cited? provenance
Use Estimates and comparisons.
Estimates
Burden estimates.
Estimates
Estimates.
- What burden estimates exist for a condition or region, from which source and year? measurement
- Is the comparison across the same method edition? boundary
Decisions
Policy use.
Decisions
Decisions.
- How are DALYs used in priority setting and cost-effectiveness? provenance
- Which entry fits health economics? action
Debate Methods and ethics.
Methods
Methodological debates.
Methods
Methods.
- What criticisms and revisions of DALY methods exist, with positions attributed? provenance
- Is the presentation neutral? boundary
Ethics
Ethical questions.
Ethics
Ethics.
- What ethical questions do disability weights and age weighting raise, with positions attributed? provenance
- Is the measure being misapplied to an individual? boundary
Learn Sources and teaching.
Sources
Data sources.
Sources
Sources.
- Where are DALY data published, and how are they accessed? provenance
- Which references are standard? provenance
Teach
Teaching.
Teach
Teaching.
- How is the measure taught in public health? action
- Which misconceptions arise? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.QTY
What it is Filled
A measure of disease burden that combines years of life lost to premature death with years lived with disability, weighted by severity, so that one DALY represents one lost year of healthy life; used by the World Health Organization and the Global Burden of Disease study to compare conditions, populations and interventions.
Why it exists Filled
Let an agent explain what a disability-adjusted life year is and how it is calculated, relay burden estimates from WHO and the Global Burden of Disease study with dates and sources, present methodological debates with attribution, and avoid applying the measure to individuals.
Distinguishing features Filled
- Combines mortality and morbidity
- Uses standard life expectancy and disability weights
- Population measure, not an individual one
- Methods have changed between editions
What robots and AI may and may not do Filled
Must not
- Use DALYs to imply some lives are worth less because of disability.
- Present DALY estimates without their uncertainty and assumptions.
- Make individual care decisions based on DALY comparisons.
Only with a human decision
- Priority setting for health spending.
May
- Explain DALYs, how they are calculated and how they are used.
- Report disease burden figures from official sources with dates.
Moral aspects Filled
- Weighting years lived with disability raises questions about the value of disabled lives.
- Burden estimates guide which diseases get funding.
Who is affected
- Disabled people
- Patients with neglected diseases
Owners Filled
Steward
Nobody: a metric; global and national health bodies publish the estimates.
Links to other meta-models Filled
parent
- Q1464352 - registry parent class
- Q17021791 - registry parent class
related
- health indicator - a summary measure
- quality-adjusted life year - measures health gained
- Global Burden of Disease study - main source
- World Health Organization - for burden estimates
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.disability-adjusted-life-year
- Wikidata: Q55627 (https://www.wikidata.org/wiki/Q55627)
Direct properties not applicable Not applicable
- components: 2 terms - years of life lost plus years lived with disability
- disability weights: 0-1 scale - from GBD surveys
Plane XCT: no invented physical properties.
Recognition optional Filled
- Sum of years of life lost and years lived with disability
- Reported per population or per 100000
- Quality-adjusted life years measure health gained rather than lost
- Not visible; a number in tables and charts.
Capabilities and actions required Filled
- explain the components and calculation
- relay burden estimates with sources and dates
- compare conditions or interventions in general terms
- present methodological debates with attribution
Hazards and failure modes required Filled
- Comparing estimates from different method editions
- Applying population measures to individuals
- Ethical debates over disability weights presented as settled
Standards and interfaces required Filled
- WHO methods for global health estimates
- Global Burden of Disease study protocols
- Health economics guidelines that use DALYs
Context of use required Filled
- Comparing disease burden across conditions and populations.
- years of life lost component
- years lived with disability component
- age-standardised DALY rates
- DALYs by cause, risk factor and region
- related measures such as QALY and HALE
Sources Missing, in the backlog
Not described yet. This gap is in the card backlog.
Note: Written from model knowledge without web access; claims are unverified.
Open questions
- Should QALY and HALE be separate entries?
- How should GBD data releases be linked by year?
- How should methodological changes be recorded?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q55627/spec.json