After having jumped through the report I now know the answers. This section struck me:

How did medical problems propel so many middle-class, insured Americans toward bankruptcy? For 92% of the medically bankrupt, high medical bills directly contributed to their bankruptcy. Many families with continuous coverage found themselves under-insured, responsible for thousands of dollars in out-of-pocket costs. Others had private coverage but lost it when they became too sick to work.
Nationally, a quarter of firms cancel coverage immediately when an employee suffers a disabling illness; another quarter do so within a year. Income loss due to illness also was common, but nearly always coupled with high medical bills.

Although here (in Holland) too a medical problem may cause serious income losses (esp. for freelancers and entrepeneurs), a bankruptcy due to out-of-pocket medical costs is impossible. I assume that esp. the capitalist citizens of the .S. want the reform?!

>Hi Peter, I have an interesting quiz for you:
>
>1) What is the most common cause of personal bankruptcy in the US?
>a) Vengeful spouse
>b) Overindulgence in Las Vegas
>c) Unable to pay healthcare bills
>d) Excessive expenditure at unsavory online sites
>
>2) Of those bankrupted for this reason, what percentage had health insurance?
>a) 20%
>b) 50%
>c) 75%
>d) None- if you have health insurance in the US you're fine.
>
>3) Consider this statement: "Many US citizens are a single medical disaster away from financial ruin." Is the statement:
>a) False
>b) False if you have insurance
>c) Generally true unless you are poor or old enough to receive socialized care
>d) True of those socialist European nations, not the US
>
>If in doubt, most of the answers can be found in this article in the American Journal of Medicine: http://pnhp.org/new_bankruptcy_study/Bankruptcy-2009.pdf