EQ-5D-5L Health Questionnaire Assessment

Introduction:

The EQ-5D-5L framework summarises perceived health across five foundational dimensions—mobility, self-care, usual activities, pain / discomfort, and anxiety / depression—using five graded severity levels. Originating from population studies, it supports cross-condition comparisons and health-economic evaluations.

This tool lets you choose one level per dimension and then rate your overall health on a 0–100 visual-analogue scale. A reactive engine instantly joins the five selections into a five-digit health-state code and visualises both code and scale on a radar display and semicircular gauge.

Use it to track how rehabilitation, medication, or lifestyle changes influence daily functioning; share the resulting code during telehealth check-ins for efficient context. *Always seek professional advice for new or worsening symptoms.* **Results do not constitute a clinical diagnosis.**

Technical Details:

Concept Overview

The EQ-5D-5L descriptive system assigns an integer from 1 (no problems) to 5 (unable or extreme problems) to each dimension, producing 5⁵ possible health states. A separate visual-analogue score (VAS) records overall health perception between 0 and 100.

Core Process

1. Let d_i ∈ {1-5} represent each dimension in the order listed.
2. Concatenate d₁…d₅ to form the health-state code H.
3. Capture VAS =v where 0 ≤ v ≤ 100.

The ordered pair (H, v) fully describes the assessment outcome.

Interpretation

• 11111 – no reported problems; population norm for excellent health.
• ≥ 3 in any digit – moderate or worse limitation needing attention.
• VAS > 80 – self-rated high wellbeing; VAS < 40 – self-rated poor health.

Variables & Parameters

Assumptions & Limitations

• Captures today’s status only; chronic fluctuation is not tracked.
• Self-report may under- or overestimate impairments.
• Levels are ordinal, not interval; arithmetic on digits is misleading.
• VAS anchors (0 / 100) differ across cultures and ages.
• Tool omits valuation tariffs; no quality-adjusted life-year calculation.

Edge Cases & Error Sources

• Incomplete answers prevent code generation.
• All 5s indicates extreme problems; interpretation may need urgent review.
• VAS 0 and VAS 100 are rare; double-check accidental slider placement.
• Assistive input devices may skip radio-button focus order.

Scientific Validity & References

Validated in multi-country studies by the EuroQol Group (2017); psychometric comparisons in Devlin et al. (2019) confirm reliability of the five-level format.

Privacy & Compliance

Only locally processed subjective health data; usage aligns with GDPR principles for non-identifiable information.

Step-by-Step Guide:

Follow these quick steps to receive your health-state code.

1. Select Start Assessment.
2. For each listed dimension, click the statement describing you today.
3. Move the slider to enter your VAS score.
4. Review the radar and gauge visualisations and note the bold five-digit code.
5. Optionally print or copy the answer table for later comparison.

FAQ:

Glossary:

EQ-5D-5L

Five-level version of the EuroQol health questionnaire.

Health-state code

Five concatenated digits describing your selected levels.

VAS

Visual-analogue scale from 0 (worst) to 100 (best).

Ordinal scale

Ranks items without implying equal intervals between them.

Self-report bias

Tendency to misjudge personal abilities or symptoms.