GROW Customised Centile Calculators

These centile calculators produce customised birthweight (per)centiles using the principles of the Gestation Related Optimal Weight (GROW) method.

The latest versions give the option of customisation based on datasets from UK (N=40,000), Sweden (N=400,000), New Zealand (N=5,000), Australia (N=12,500) and United States (N=35,000). For each of the datasets, coefficients affecting birthweight were obtained using a backwards conditional multiple regression technique. The UK, Sweden and New Zealand customised coefficients have been updated in these new versions of the software

There are TWO forms of the calculator.

Form 1 (individual)
This is used to calculate a single birthweight centile at a time

Form 2 (bulk)
This is used to calculate a dataset of centiles in a spreadsheet

Disclaimer: The software uses formulae containing calculations made on the basis of published principles and formulae. The authors cannot accept responsibility for any clinical diagnoses or decisions made on the basis of this software.