Investors watching UK plc have plenty to digest, from a stagnating economy to a soft labour market. One signal rarely makes the analysis, because it does not show up cleanly in any single data series: the steady rise of presenteeism, where employees work through illness rather than take a sick day. New research suggests it is widespread, and that it quietly drags on the output of the companies investors hold.
A Censuswide survey of 4,000 remote workers across the UK, Germany, Italy and Spain, commissioned by the remote-first company iGaming.com, found that only 7.8% take a proper sick day and fully switch off when ill. Some 47.8% now work through illness more than they used to, rising to 51.4% in the UK. The point for investors is not the wellbeing angle. It is that a falling absence rate, often read as a sign of a healthy, productive workforce, can mean the opposite.
The numbers reconcile with the official picture in a way that should sharpen the concern rather than soften it. The latest ONS figures still show a sickness absence rate near 2% and millions of working days lost each year, so illness has not fallen. What has changed is that a growing share of it never reaches the absence record, because the worker logs on regardless. The reported sick-day numbers, in other words, understate the real productivity hit rather than capturing it.
This is the kind of research on remote-work productivity and illness that does not move a share price on the day, but feeds into the slow variables that do: output quality, error rates, customer experience and staff turnover. A business running on people working at half capacity from their sickbeds is carrying a cost that no absence line will reveal, and that no trading update will flag.
There is a structural driver worth understanding. Workers in countries with generous statutory sick pay were the least likely to work through illness. UK workers, on Statutory Sick Pay of around £118 a week during the survey, were the most likely. The thinner the safety net, the stronger the pull to log on while unwell, which means the effect is most pronounced in lower-paid, labour-intensive parts of the market. It tends to be sharpest, too, in businesses that lean hardest on monitoring, where the survey found the most-watched staff were also the most likely to work through sickness.
The exposure is not spread evenly. Labour-intensive, lower-margin and heavily monitored businesses, from contact centres to parts of retail and hospitality, sit at the sharp end, because their staff have both the thinnest financial buffers and the strongest pressure to appear present. Capital-light firms with well-paid, autonomous employees are less affected. For a portfolio, that is a useful lens for thinking about where a tight labour market and a presenteeism culture could quietly erode service quality and margins over time. There is a human-capital tell alongside it: a third of workers said being less visible to managers had already cost them a promotion, the kind of low-level anxiety that drives both presenteeism now and turnover later, neither of which surfaces in a results presentation until it is expensive.
For stock-pickers the read-through is not a trade, it is a question to carry into the analysis. With UK markets already wrestling with stagnation and weak growth, the companies best placed to defend margins will be the ones whose productivity is real rather than borrowed from the health of their staff. A management team boasting about record-low absence without a word on workload, monitoring or wellbeing may be flagging a strength that is actually a risk.
None of this is a recommendation to buy or sell any security. It is a reminder that some of the most important things about a workforce never appear in the headline numbers, and that a falling sick-day count can describe a healthier company or simply a more frightened one. Knowing which is worth more than it looks.
