Malaysia Aesthetic Price Methodology: Sampling, Units and Limitations

What is a price observation?

A price observation is a dated record of a publicly listed or directly submitted amount for a defined treatment scope. It is not automatically a market price. The record includes the source route, clinic key, region, comparable market, raw amount, currency, unit, quote scope, inclusions, collection date and protected evidence reference.

Directly submitted evidence requires an approved permission or consent state. Public web sources require an exact URL and capture reference. Raw observations remain private because the public research purpose is aggregate comparison, not an unsupported clinic-by-clinic price ranking.

Which observations are eligible?

An observation must identify its canonical treatment, exact branch key, registry-matched ownership group, market, price basis, quote scope, consultation and follow-up inclusion, promotion state, collection date, evidence reference, controlled normalisation method, duplicate decision, outlier decision and publication eligibility. A raw number without context is ineligible.

Expired promotions, unverifiable screenshots, ambiguous treatment labels, missing units, unrelated services and evidence that cannot be retained are excluded or held for review. Exclusion reasons remain in the private record.

How are prices normalised?

Normalised amounts are computed by the system from the retained raw quote. Identity v1 keeps the exact quoted amount and unit. Package-per-session v1 divides an exact retained package quote by its recorded session count; an operator cannot type a different derived value. Per-session amounts stay separate from per-unit or per-vial amounts.

Product, device, body area, treatment scope and inclusion differences remain visible. If two quotes cannot be made comparable without assumptions, they are analysed as separate strata or excluded from the public range.

How are duplicates and clinic independence handled?

Records sharing a branch key, treatment, quote scope, normalised unit and method, collection date and canonical source are grouped for duplicate review. Tracking parameters, fragments and reordered query parameters do not create new observations. Reposts and repeated promotions do not count again.

The clinic threshold counts unique parent ownership groups from current canonical clinic registry records, not row-level aliases, webpages or screenshots. A missing, stale or conflicting branch-to-owner mapping fails closed. The market threshold counts defined geographic markets with usable observations rather than every city name appearing in a source.

How are outliers handled?

Outliers are flagged and reviewed, never silently removed. Possible reasons include a data-entry error, different treatment scope, unusually large package, expired promotion or genuine market variation. The reviewer records whether the observation is included, excluded or held for clarification and why.

The public report explains material exclusions and sensitivity where appropriate. A visually convenient range is not chosen merely because it produces a cleaner chart.

What is the annual publication rule?

Observations are collected throughout the year. The annual dataset is frozen as an exact record manifest with a declared period, cut-off date, version and recomputed checksum, then passed through duplicate, unit, promotion, outlier, source, legal and compliance QA. The hard minimum per comparable treatment basis is eight observations, five independent clinic groups and three markets.

If the threshold is not met, the annual report records the coverage gap and does not publish a national average for that treatment. The evergreen Price Atlas page can still show source-attributed advertised figures with their original conditions.

How are missing data and uncertainty reported?

Missing inclusion details, unknown promotion terms, unavailable source dates and unresolved product or device identities are recorded as missing rather than assumed. The report shows how many observations were held or excluded for these reasons when that information is material to interpretation.

Ranges are not described as representative of every Malaysian clinic unless the sampling design supports that statement. Geographic gaps, online-price bias, package variation and changes after the cut-off date remain visible limitations. The method favours a smaller defensible statement over a larger unsupported claim.

Fail-closed publication checks