North America extended its dominance in artificial intelligence (AI) hiring among medical industry companies in the three months ending September.

The number of roles in North America made up 60.4 per cent of total AI jobs – up from 52.9 per cent in the same quarter last year.

That was followed by Asia-Pacific, which saw a -3.9 year-on-year percentage point change in AI roles.

The figures are compiled by GlobalData, who track the number of new job postings from key companies in various sectors over time. Using textual analysis, these job advertisements are then classified thematically.

GlobalData's thematic approach to sector activity seeks to group key company information by topic to see which companies are best placed to weather the disruptions coming to their industries.

These key themes, which include artificial intelligence, are chosen to cover "any issue that keeps a CEO awake at night".

By tracking them across job advertisements it allows us to see which companies are leading the way on specific issues and which are dragging their heels - and importantly where the market is expanding and contracting.

Which countries are seeing the most growth for AI roles in medical devices?

The fastest growing country was the United States, which saw 52 per cent of all AI job adverts in the three months ending June last year, increasing to 57 per cent in the three months ending September this year.

That was followed by Canada (up 2.5 percentage points), the United Kingdom (up 1.2), and Poland (up 0.8).

The top country for AI roles in the medical industry is the United States which saw 57 per cent of all roles in the three months ending September.

Which cities are the biggest hubs for AI workers in medical devices?

Some 2.7 per cent of all medical industry AI roles were advertised in San Diego (United States) in the three months ending September - more than any other city.

That was followed by South San Francisco (United States) with 2.7 per cent, Warsaw (Poland) with 2.5 per cent, and Santa Clara (United States) with 2.4 per cent.