Employees at large companies may have to take steps such as losing weight and cutting out cigarettes if they want to get wellness incentives in 2012.

Towers Watson & Company, New York (NYSE:TW), has published statistics suggesting the possibility of a shift towards outcomes-based wellness incentives in a summary of results from a recent survey of participants from 466 employers that employ an average of 15,000 employees each.

Participants said they expect the cost of health care for active employees to increase an average of 8.2% in 2011, to $10,730 per employee.

About 94% of the participants said they expect their employers to continue to offer health benefits.

Towers Watson also found that 62% of the participants said their companies will base wellness program incentives more on health outcomes and less on participation in the programs by 2012.