Every page names its reviewer, the review date, and the sources behind itHow we grade evidenceEditorial standards
La Bàn Y KhoaMedCompass

How we grade evidence

Every page carries a grade. The grade describes how strong the research behind it is — not how confident we feel, and not how popular the treatment is.

A · Strong evidence3 pages live

Tổng quan hệ thống, hoặc nhiều thử nghiệm đối chứng ngẫu nhiên cho kết quả thống nhất.

How we must write at this grade: Được phát biểu khẳng định, nhưng vẫn phải nêu giới hạn áp dụng.

B · Moderate evidence6 pages live

Có nghiên cứu đối chứng nhưng ít, cỡ mẫu nhỏ, hoặc kết quả giữa các nghiên cứu chưa thống nhất.

How we must write at this grade: Dùng "nhiều nghiên cứu cho thấy", KHÔNG dùng "đã được chứng minh".

C · Limited evidence3 pages live

Nghiên cứu quan sát, loạt ca bệnh, hoặc đồng thuận chuyên gia.

How we must write at this grade: Phải ghi rõ đây là kinh nghiệm lâm sàng, chưa phải bằng chứng mạnh.

D · Insufficient evidence0 pages live

Chưa có nghiên cứu đủ chất lượng để kết luận. Thư viện vẫn ghi lại để người đọc biết là chưa biết.

How we must write at this grade: Phải nói ngay đầu bài rằng chưa kết luận được.

An uncomfortable truth about aesthetic medicine

Compared with other specialties, aesthetic medicine has markedly fewer systematic reviews and randomised controlled trials. Much of what is practised rests on case series and expert consensus. That is a real limitation, and it is the reason many pages here carry a C or D grade.

This does not mean the field lacks expertise. It means most decisions depend on the individual anatomy in front of the surgeon rather than on a statistic that applies to everyone. Which is also the honest reason a good doctor says they need to examine you first.

Three operating rules

1
A DOCTOR sets the grade — not an editor, and not an algorithm

The right to set a grade is tied to the right to sign a page off, and the two cannot be separated. Editors only PROPOSE a grade, and a proposal has no effect until a doctor signs.

2
The grade describes the state of knowledge in the field, not page quality

Many widely practised aesthetic techniques sit at grade C, and saying so plainly is the value of this library. Grade C does not mean the page is thin, nor that the technique is bad.

3
We never raise a grade to make a page look stronger

An honest grade-D page is worth more than an inflated grade-B one. Changing the grade of a published page generates a public correction.

A rule we hold ourselves toEvery page has a section called “what is still uncertain”. If we cannot write that section honestly, the page is not ready to publish — and the database will not let it into the medical review queue. Browse pages by grade →