Check the five EQ-5D-5L dimensions for how your health feels today, then add one EQ VAS self-rating.

  • Answer for today, not for your usual week or month.
  • The finished report keeps your EQ VAS separate from the published utility references.
  • Your answers stay in this browser and can sync to the URL for repeatable links.
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Domain burden map
Utility vs VAS alignment map
How this report is framed
  • EQ VAS stays separate as your own 0 to 100 self-rating for today.
  • Utilities are published population-preference references for the same five-digit state.
  • US 2019 stays the active reference, with England 2018 shown as a comparison row.
Interpretation

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Value set reference rows
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Answer review
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Beck Depression Inventory-II (BDI-II) Score 21 BDI-II depression-symptom answers over two weeks, see severity bands, Item 9 safety context, driver items, and answer exports.
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Health-related quality of life is hard to summarize with one sentence because daily health is made from several kinds of limitation. A person may be able to walk but struggle with pain, or may manage washing and dressing while anxiety changes how the day feels overall. EQ-5D-5L gives those differences a compact structure by recording five current-health dimensions instead of asking for one broad health label.

The five dimensions are mobility, self-care, usual activities, pain or discomfort, and anxiety or low mood. Each dimension has five ordered levels, from no problems through slight, moderate, severe, and extreme problems. The self-care and usual-activities dimensions use an unable or major-help idea at the most severe end, while pain and mood use intensity language. The result is meant to describe today, not a lifetime diagnosis or an average month.

Concept What it answers Common mistake
Health state Which level was selected in each of the five dimensions. Treating the five digits as a severity score instead of a profile code.
Utility How a published value set weights that health state for preference-based reporting. Assuming every country, study, or payer uses the same value set.
EQ VAS How the person rates overall health today on a 0 to 100 visual analogue scale. Expecting it to match utility after multiplying utility by 100.
EQ-5D-5L profile, utility, and EQ VAS Five current-health dimensions form a five-digit health state. Value sets convert the state to utility, while EQ VAS remains a separate self-rating. EQ-5D-5L separates three ideas A profile code, a preference-weighted utility, and a self-rating are related but not interchangeable. Mobility level 1-5 Self-care level 1-5 Usual activities Pain level 1-5 Anxiety or mood level 1-5 5-digit health state Value set utility EQ VAS self-rating

The five selected levels are written in standard order as a five-digit health state. A state of 11111 means no reported problems in all five dimensions. A state such as 22324 shows the exact pattern of reported problems, but it does not say which problem caused another or which treatment would help.

Utility and EQ VAS often diverge for valid reasons. Utility applies a value set derived from preference research, so the same health state can receive different weights in different countries or policy settings. EQ VAS is personal and immediate; fatigue, medication effects, uncertainty, or a health concern outside the five dimensions can pull the self-rating away from the tariff result.

EQ-5D-5L is useful for structured follow-up, rehabilitation notes, outcomes research, and cost-utility analysis, but formal projects may need EuroQol registration, approved wording, and the value set required by a protocol or health-technology body. The profile supports a health-status conversation; it does not diagnose the cause of a problem or choose care by itself.

How to Use This Tool:

Answer for today's health, complete all five dimensions, then enter one EQ VAS value for the same day.

  1. Select Start EQ-5D-5L to open the five dimension questions.
  2. Choose one statement for Mobility, Self-care, Usual activities, Pain / discomfort, and Anxiety / depression. Use the statement that most closely matches today, even if yesterday or last week was different.
  3. Watch the numbered navigator for missing answers. The EQ VAS step appears only after every dimension has a valid level.
  4. Set EQ VAS self-rating from 0 to 100, where 0 means the worst imaginable health and 100 means the highest imaginable health today.
  5. Select Continue to report. The summary shows the health state, EQ VAS, US 2019 utility, burden label, and VAS-versus-utility alignment badge.
  6. Review Domain burden map and Answer review to identify the dimensions above level 1 and the dimension carrying the largest active-set decrement.
  7. Use Value set reference rows and Utility vs VAS alignment map when you need the US 2019 and England 2018 utility comparison beside the same EQ VAS value.

For repeated check-ins, keep timing and context similar. A result taken after medication, after a flare, or late in the day may not compare cleanly with a morning baseline.

Interpreting Results:

Start with the Health state report. The five-digit state is the most direct record because each digit points back to one dimension. The Overall level label follows the highest selected level and the number of dimensions above level 1, while Top burden and Priority domain identify the largest US 2019 decrement in the current profile.

US 2019 is the active utility reference used for the main burden ranking. England 2018 appears as a comparison row, not as a blanket instruction for England, the UK, or international reporting. Formal study, reimbursement, or technology-appraisal work should follow the required value-set policy before relying on a utility number.

The alignment badge compares EQ VAS with active utility multiplied by 100. A gap smaller than 5 points is labeled close. A positive gap means the person's EQ VAS is higher than the active utility reference would suggest for the five-dimensional state. A negative gap means the EQ VAS is lower than active utility x 100.

A one-level change in a dimension is often more meaningful than a tiny utility movement caused by rounding. Confirm the selected statements in Answer review, then compare repeat runs by health state, EQ VAS, active utility, and the circumstances around the answer.

Technical Details:

The EQ-5D-5L descriptive system has 55, or 3,125, possible health states. Digits are ordered as mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Level 1 contributes no decrement in the supported value sets. Levels 2 through 5 are ordered severity categories, not equal-distance measurements, so the jump from level 2 to level 3 is not assumed to equal the jump from level 4 to level 5.

A value set converts a descriptive health state into a utility by subtracting dimension-and-level decrements from 1.000. Severe states can produce negative utilities because some valuation studies place those health states below 0 on the utility scale. A negative value is therefore a possible tariff outcome, not a sign that the answers failed validation.

Formula Core

The active utility uses the US 2019 decrement table. The England 2018 row applies the same subtractive structure with England-specific decrements.

utility = 1 - ∑ i=1 5 di alignment gap = EQ VAS - (active utility×100)

In the utility equation, di is the decrement for the selected level in dimension i. A level-1 answer contributes 0. Utilities are displayed to three decimals. The alignment gap is displayed in points to one decimal place.

Position Dimension Level 1 Levels 2 to 5
1 Mobility No problems moving around Slight to unable or major-help difficulty moving around
2 Self-care No problems washing or dressing Slight to unable or major-help difficulty washing or dressing
3 Usual activities No problems with usual activities Slight to unable or major-help difficulty with usual activities
4 Pain / discomfort No pain or discomfort problem Slight to extreme pain or discomfort
5 Anxiety / depression No anxiety or low-mood problem Slight to extreme anxiety or low mood

Report Rules

Output Rule used in the report How to read it
Overall level No reported burden when all levels are 1; otherwise follows the highest selected level. Summarizes severity at a glance, but the five digits remain the detailed profile.
Balance label Mobility, self-care, and usual activities count as function burden. Pain/discomfort and anxiety/depression count as symptom burden. Function-led, symptom-led, mixed burden, or balanced baseline helps show where problems sit.
Priority domain Ranks non-baseline dimensions by the active US 2019 decrement, then by selected level and dimension order. Identifies the dimension carrying the largest active-set utility loss.
Alignment badge Absolute gap < 5 points is close. Larger gaps show VAS above or below active utility x 100. Flags disagreement between personal self-rating and population-preference utility.

For state 22324, the US 2019 decrement sum is 0.645, so the active utility is 1 - 0.645 = 0.355. With EQ VAS 65, the alignment gap is 65 - (0.355 x 100) = +29.5 points. The England 2018 comparison utility for the same state is 0.481 because that value set assigns different decrements to the same five selected levels.

Published value sets are not interchangeable policy choices. The active US 2019 row is useful for this report's ranking, while England 2018 is a published comparison set with separate guidance cautions for formal use.

Accuracy and Privacy Notes:

This is an informational health-status report. It can organize EQ-5D-5L answers, utility references, and follow-up notes, but it is not a clinical diagnosis, treatment recommendation, or substitute for official study rules.

  • The active utility reference is US 2019, with England 2018 shown as a comparison row.
  • Formal projects may require a different country value set, mapping method, license, language version, or reporting protocol.
  • Negative utilities can occur for very severe health states and should not be treated as calculation failure.
  • Scoring does not need a server lookup after the page has loaded, but a copied result link can include the five answers and EQ VAS in the URL.
  • CSV files, chart images, DOCX exports, copied rows, screenshots, and shared links can expose personal health information.

Worked Examples:

Level-1 baseline

A person selects level 1 for all five dimensions, producing health state 11111. The US 2019 utility and England 2018 utility are both 1.000. If EQ VAS is 98, the alignment badge is close because the self-rating is only 2 points below active utility x 100.

Mild symptoms with a close self-rating

State 11223 means no problems in mobility and self-care, slight problems in usual activities and pain/discomfort, and moderate anxiety/depression. The report shows US 2019 utility 0.749 and England 2018 utility 0.783. With EQ VAS 76, the active alignment gap is about +1.1 points, so the VAS is close to utility.

Self-rating above utility

State 22324 gives US 2019 utility 0.355 and England 2018 utility 0.481. With EQ VAS 65, the active gap is +29.5 points. The Priority domain is anxiety/depression because it carries the largest US 2019 decrement in that answer pattern.

Very severe profile

State 55555 produces negative utilities under both supported value sets: -0.573 for US 2019 and -0.285 for England 2018. If the person still gives EQ VAS 30, the result is a very severe descriptive state with a separate positive self-rating, not a broken report.

FAQ:

Why did the report not appear?

The report appears only after all five dimension questions have valid answers and the EQ VAS self-rating has been saved. Check the navigator for a missing answer, then set the 0 to 100 slider and continue.

Does EQ VAS need to match utility?

No. EQ VAS is the person's own overall health rating today. Utility is a preference-weighted score for the five-dimensional health state. The alignment badge helps show when those two views are close or far apart.

Can a utility value be negative?

Yes. Some severe EQ-5D-5L states have negative values under published value sets. A negative utility means the tariff places that state below 0 on the utility scale; it does not mean the answers are invalid.

Is England 2018 the required value set for England?

Not necessarily. The England 2018 row is included for comparison, and formal work should follow the required study, payer, or health-technology-assessment guidance before relying on any value set.

Can I compare two results taken on different days?

Yes, but compare the five-digit state, EQ VAS, and US 2019 utility together. Also note timing and context, because medication, fatigue, symptoms, and activity level can change the daily profile.

Does this diagnose a health condition?

No. The result describes current health status across five dimensions and compares utility references. Diagnosis, care planning, and treatment decisions require clinical context and professional judgment.

Glossary:

EQ-5D-5L
A five-dimension, five-level descriptive system for current health-related quality of life.
Health state
The five-digit code made from the selected levels in the standard EQ-5D order.
EQ VAS
The person's own 0 to 100 rating of overall health today.
Value set
A published set of preference weights used to convert a health state into utility.
Utility
A preference-weighted score calculated from the five selected levels and a value set.
Decrement
The amount subtracted from 1.000 for a selected non-baseline level in a dimension.

References: