As the Great Recession has sown unemployment and downgraded work even for those people who have held on to their jobs, the number of Americans lacking healthcare has swelled beyond 50 million, according to a sobering new report from the Kaiser Foundation.

Among the report's most troubling findings: The number of Americans without any health care coverage grew by more than four million in 2009. That left almost one-fifth of non-elderly people uninsured. Among those between 19 and 29 years old, nearly one-third lacked coverage.

The study underscores the degree to which the recession has accelerated the loss of basic elements once viewed as inextricable pieces of a middle class life. The number of Americans lacking medical coverage now exceeds the population of Spain. [...]

As those lacking health insurance grow in number, so do those missing out on necessary medical attention. About one-in-four uninsured adults have forgone care in the past year because of costs, compared to only 4 percent of those who have private coverage, according to the report.