Overall, 62% of the U.S. population had employment-based health coverage in 2005, down from 64.4% in 2004, according to a new study of census data.

Managerial and professional workers in the private sector had the greatest likelihood of having health coverage from their employer, according to the study by the Employee Benefits Research Institute, Washington.

EBRI found 66% of managers and professional employees in the private sector in 2005 had company health benefits.

In contrast, workers in farming, fishing, and forestry jobs were the least likely to have coverage (24%). Among various industry groups, those in public-sector jobs had the highest coverage rates (74%), followed by private-sector manufacturing workers (68%).