State health inspectors visiting Stamford Hospital in late 2012 turned up several infection-control violations, including the improper drying and storage of endoscopes, instruments used to look inside the body. An inspection of Hartford Hospital in 2012 found an operating room with “dust and darkened debris” on top of pumps attached to IV poles, a container of syringes “overflowing” a protective cover, and brownish stains on the floor and underside of the operating table. These kinds of lapses, while not directly tied to patient infections, have contributed to Connecticut’s poor ratings on some federal measures of hospital-acquired infections. Newly released data show that more than 50 percent of the state’s hospitals had rates for at least one type of hospital-acquired infection that were worse than federal benchmarks, in late 2012 and 2013. No other state had a higher percentage of its hospitals exceeding the infection standards set by the U.S. Centers for Disease Control and Prevention, and most states had fewer than 20 percent, according to the data, compiled by Kaiser Health News.