Slacks implies pants of certain materials which are not part of a suit (jeans are not slacks, and you would not refer to the pair of trousers that came with a suit as slacks.) It is also more common to use slacks to refer to pants worn by women, while men would wear trousers.
Health care safety net providers are those that have a legal mandate or mission to offer medical care to all patients, regardless of their ability to pay, and have a substantial number of patients who are uninsured or on Medicaid.
In aggregate, medical care spending for the uninsured populationâthat is, for the full-year uninsured and for the periods that the part-year uninsured population lacked coverageâtotaled $121 billion in 2013 (Figure 2). Of these expenses, 21%, or $25.8 billion, were paid out-of-pocket by the uninsured.