Burchfield emphasized the inclusion of modern-day language and, through the supplement, the dictionary was expanded to include a wealth of new words from the burgeoning fields of science and technology, as well as popular culture and colloquial speech. Burchfield said that he broadened the scope to include developments of the language in English-speaking regions beyond the United Kingdom, including North America, Australia, New Zealand, South Africa, India, Pakistan, and the Caribbean. Burchfield also removed, for unknown reasons, many entries that had been added to the 1933 supplement. In 2012, an analysis by lexicographer Sarah Ogilvie revealed that many of these entries were in fact foreign loanwords, despite Burchfield's claim that he included more such words. The proportion was estimated from a sample calculation to amount to 17% of the foreign loan words and words from regional forms of English. Some of these had only a single recorded usage, but many had multiple recorded citations, and it ran against what was thought to be the established "OED" editorial practice and a perception that he had opened up the dictionary to "World English".