The TUC has said the UK is "still in the midst of a job crisis" despite unemployment falling in recent months.
The true scale of unemployment is far bigger than official figures suggest, as nearly five million people say they want work today.
With a further 1.4 million people only able to find part-time work, despite needing a full-time job to get by, it's clear that our labour market remains far from full healthy.
Mr O'Grady said it was important that official figures "better reflect the true nature of the jobs market".
More top news
Freezing with some fog patches tonight