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Description of new Bulk Centile Calculator

The new Global BCC is derived from an international database with over 3 million births from the anonymised submissions of 30 countries and included 113 ethnic groups or countries of origin which are listed below. Each were analysed to obtain a constant (expected birthweight at 280 days) and coefficients for maternal height and weight, parity and sex, using multiple regression techniques. The principles are explained in the GROW documentation.

For countries or ethnic groups where sufficient data are not yet available, coefficients for the respective regional analysis are provided for use as an approximation. In cases where no ethnic/country of origin information is available, the application applies a global average coefficient.

The built-in explanatory notes provide further details.

We welcome anonymised databases to derive coefficients for additional countries / populations and to complement our international database. Please click here to see preferred format for data.

Please contact us for any further information.

List of ethnicities, countries of origin and regions

Ethnicities / Countries (n=113)

Afghanistan Cape Verde Gambia Libya Poland Sudan Uzbekistan
Albania Caribbean Germany Lithuania Portugal Suriname Vietnam
Angola Chile Ghana Malaysia - Chinese Romania Sweden Wales
Antilles China Greece Malaysia - Indian Russia Switzerland Yemen
Argentina Colombia Hungary Malaysia - Malay Samoa Syria Zimbabwe
Australia - Aboriginal Congo Iceland Morocco Scotland Tajikistan
Australia - European Cook Islands India Myanmar Senegal Thailand
Bangladesh Czech Republic Indonesia Nepal Serbia Tonga
Belarus Denmark Iran Netherlands Singapore Torres Strait Islands
Belgium East Europe - Jewish Iraq New Zealand - European Slovakia Tunisia
Bhutan Ecuador Ireland New Zealand - Maori Slovenia Turkey
Borneo - Dayak Egypt Israel Nigeria Somalia Uganda
Bosnia and Herzegovina England Italy Niue South Africa - African Ukraine
Brazil Eritrea Jamaica Northern Island South Africa - European Uruguay
Bulgaria Ethiopia Japan Norway South Africa - Mixed US - African American
Burundi Fiji Kenya Pakistan South Korea US - European
Cameroon Finland Latvia Peru Spain US - Hispanic
Canada France Lebanon Philippines Sri Lanka US - Native American

Regions (n=20)

Australasia Central/South America Far East Asia North Europe South Europe
Caribbean Central/West Europe Middle East Pacific Islands Southern Africa
Central Africa East Africa North Africa South Asia United Kingdom
Central Asia East Europe North America South East Asia West Africa
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