About Child Growth Lab

Child Growth Lab is independently created, operated, and maintained by an individual developer. “Child Growth Lab” is the public publisher name used by this website. The developer is responsible for source selection, calculator and content scope, implementation, testing, public wording, release decisions, and corrections.

The site is not a hospital, clinic, government agency, university, or professional medical society. It is not affiliated with or endorsed by the CDC, WHO, AAP, or any other source organization merely because it cites their guidance or uses their data. It does not present a fictional physician team, board, or larger institution.

The public support channels are support@childgrowthlab.com and the Contact page.

Parents and caregivers are the primary audience. Healthcare professionals and other adults may also use the tools as transparent reference aids. The site is not directed to children. Choose a calculator from the homepage or read the guide that explains a result type.

Child Growth Lab turns documented pediatric growth references and calculation methods into tools and explanations that adults can inspect and understand. It exists to make the required inputs, reference method, result meaning, and important limits visible instead of presenting a black-box number or label.

The site is calculator-first: each public calculator owns a distinct input model, output, and user question, while the guides explain interpretation, evidence, and common misuse. The purpose is educational and practical: help adults complete a bounded reference task and prepare better-informed questions for an appropriate professional; it does not replace clinical assessment.

Sources prefer official agencies, professional organizations, original datasets, primary research, and technical documentation. Implementation and scope are checked, then page-specific unit, regression, browser, accessibility, and release checks are used as appropriate.

AI-assisted tools may help organize research, draft, code, generate tests, inspect differences, or assist review. The output is not published automatically; the individual developer checks the sources, methods, implementation, and public wording.

Calculations run in the browser. There is no user account, child-health database, saved longitudinal medical record, or external calculation API. Advertising is not currently active. AdSense account metadata and the ads.txt record support publisher verification or seller authorization but do not load an advertisement. Advertising or another commercial association involving WHO licensed materials remains blocked in the current release pending the required written WHO clarification or additional permission.

See Methodology, Editorial Review, and Privacy for the detailed boundaries.

Medical explanations and calculator methods use applicable official guidance, original datasets, professional-organization materials, technical documentation, and primary research. Ordinary blogs, commercial calculators, and search summaries do not replace primary evidence.

Before publication, the relevant population, age range, formula, units, date rules, thresholds, boundaries, rounding, source, result interpretation, and out-of-scope situations are checked. Depending on the page, validation can include reproduced vectors, numerical regression, input and birthday boundaries, unit conversion, responsive layouts, keyboard use, accessibility, browser diagnostics, and release checks.

These checks reduce risk but cannot guarantee that every result or explanation fits every individual situation. Methodology records the technical methods, and Editorial Review describes evidence, review, and correction boundaries.

AI-assisted tools may help organize research, prepare drafts, write code, generate tests, inspect code differences, and assist review. AI output is not published automatically. AI is not a medical evidence source, doctor, clinical reviewer, publisher, or final decision-maker.

The individual developer remains responsible for checking sources, confirming methods, reviewing implementation differences, checking public wording, and deciding whether a change is published or withdrawn. AI does not medically validate results or create a clinical review.

Calculations run in the browser. The current product has no user account, child-health database, saved longitudinal medical record, or external calculation API, and it does not build a stored medical record from calculator entries.

Browser-based calculation does not mean the website makes no ordinary network requests. Hosting, DNS, security protection, and related infrastructure may create routine technical logs. The Privacy Policy defines the current collection and infrastructure boundary.

Advertising is not currently active. No AdSense ad script or ad slot is loaded. The publisher-account metadata and ads.txt record present in the site do not themselves serve ads, create an ad request, or change the browser-local calculator data flow.

Some WHO material is used under Permission Request 202609680. The current release does not treat that permission as blanket authorization for advertising or another commercial association involving WHO licensed materials. Ad serving must remain disabled until the applicable WHO scope is confirmed in writing or additional permission is recorded, and any separate privacy, consent, and AdSense release requirements are also satisfied.

If advertising is lawfully enabled in a future release, it must remain distinguishable from primary content and must not determine formulas, evidence sources, result categories, medical boundaries, page conclusions, or the order in which tools and guides are presented. An advertisement would not mean Child Growth Lab endorses the advertised product.

Report a content issue, source error, calculation concern, privacy or accessibility problem, broken link, or technical issue to support@childgrowthlab.com or through the Contact page. Do not send identifiable child medical records.

A confirmed issue is checked against the relevant source and implementation. When appropriate, a regression test is added or updated, release validation is rerun, and the affected page receives a truthful review-date update. The support address is not an emergency medical channel and does not provide individualized medical judgment.