Another major characteristic of the workforce since 2008 is the big rise in self-employment. The number of workers in that category jumped by nearly a million people to 4.8 million, more than 15.1% of the labour force, in 2017. Surprise, surprise, when you don’t have the fallback of even statutory sick pay you’re much less likely to take a day off sick. That’s borne out in the figures too, as just 1.3% of hours are lost to illness among the self-employed compared with 2% among employees.