Editorial policy & tool validation
How Cao 360° writes, checks and updates health information on this website — so families know what they can rely on, and its limits.
Updated: 14 Nov 2026
Who creates the content
- Content is written by the Cao 360° by 9well team; some of it is drafted and translated with the help of AI tools.
- All medical content (thresholds, recommendations, warning signs) is reviewed by qualified people before publication. New medical content is used in advertising only after a doctor has reviewed it.
- The list of reviewing doctors will be published with each doctor’s consent.
Source hierarchy
- 1. Guidance from medical organisations: WHO, CDC, American Academy of Pediatrics (AAP), Pediatric Endocrine Society (PES), Endocrine Society, AASM.
- 2. Systematic reviews and peer-reviewed research.
- 3. Press articles only to retell published cases, always linked to the original.
- Every medical number on the site has a source next to it.
What Cao 360° does not do
- No promise of extra centimetres, no guaranteed results.
- No diagnosis through the website or messages; tools give reference information only.
- No medicine names or doses; medicines and hormones are prescribed only by doctors.
- No identifiable photos of real children; images are illustrations.
- We are not a clinic: examinations, tests and treatment are done by physicians at licensed facilities.
Conflicts of interest
- Cao 360° sells support programs and paid consultations. Tools and articles are free, do not require a phone number, and do not depend on buying a program.
Updates & corrections
- Content is reviewed at least every 12 months or when professional guidance changes.
- Found an error? Message Cao 360° on Messenger; errors are corrected and the update date recorded.
Your family’s data
- Tools run in your browser; measurements stay on your device until you choose to send them.
Tool validation
| Tool | Data / formula | Limits |
|---|---|---|
| WHO percentile | WHO LMS by month: Child Growth Standards 24–60 months, Growth Reference 2007 61–228 months; z = (height ÷ M − 1) ÷ S | Ages 2–19; one measurement is not conclusive |
| Growth velocity | (height 2 − height 1) ÷ years; thresholds 4/4.5 cm/yr (Children’s Mercy), 2 cm/yr (PES) | Needs ≥ 6 months between measurements |
| Expected height | (father + mother ± 13) ÷ 2, range ±8.5 cm (AFP 2008) | Ignores nutrition, illness, puberty |
| Bedtime | AASM 2016: 9–12 h (6–12 y), 8–10 h (13–18 y) | General recommendation |
| Habit check | WHO 2020 activity, AASM 2016, WHO free sugars | Self-assessment, not a diagnosis |
| When to see a doctor | PES referral criteria; Children’s Mercy | Reference guidance |