Silver Book Fact
The Gallup Healthways Well-Being Index found that 24% of those surveyed were not able to perform their usual activities on 1 or more days during the previous month because of illness. Of those people, the average number of sick days was 6 out of the last 30.
Gallup Healthways. Gallup Healthways Well-Being Index. April 28th Hill Briefing; 2008