The combination of a bad economy and rising unemployment is contributing to unpaid bills and operating losses at U.S hospital companies such as Tenet Healthcare (THC), which missed analyst estimates last week by 3-cents with an adjusted 6-cent per share loss and lowered its full-year and 2009 guidance for EBITDA. Tenet's allowance for doubtful accounts increased 5.8% to $163M at hospitals run by the Company for over a year.

With Tenet trading all-time lows, several insiders were buying a combined 160