Poor Medical Treatment Kills Thousands Each Year By MARK SHERMAN    WASHINGTON (AP) -- Requiring doctors and hospitals to report publicly on their performance and tying their pay to the results would dramatically reduce avoidable deaths and costs attributable to poor medical care, says a new report from an organization that works to improve health care quality.    Wild variations in medical care led to 79,000 avoidable deaths and \$1.8 billion in additional medical costs last year, the private National Committee for Quality Assurance said in its annual report released Wednesday...