Study: Cost of health insurance rose sharply last year

How much the new federal health care legislation pushed by President Obama is affecting insurance rates remains a point of debate, with some analysts suggesting that insurers have raised prices in anticipation of new rules that would, in 2012, require them to justify any increase of more than 10 percent.

In addition to increases caused by insurers getting ahead of potential costs, some of the law’s provisions that are already in effect — like coverage for adult children up to 26 years of age and prevention services like mammogram screening — have contributed to higher expenses for some employers.The Kaiser survey includes both big and small companies using employer-sponsored coverage representing about 60 percent of all insured Americans of working age. The annual growth in premiums, according to the survey, had slowed in recent years to 5 percent, rising just 3 percent in 2010, in part due to the lingering effects of the recession. After years of double-digit increases, the moderation was a welcome relief.

The unexpected increase in premiums raises questions about whether health care costs are, in fact, stabilizing at all, as people have postponed going to the doctor or dentist and have put off expensive procedures. “No one quite knows,” said Mr. Altman.