Numerous high-risk patient populations and risk factors that place patients at high risk for infection after total joint replacement or spine surgery have been described in the literature.

对于关节置换术和脊柱手术的感染，有很多高风险患者人群以及相关的危险因素使患者具有较高感染风险的情况，在以往的文献中都有论述。

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The 56, 257 individuals enrolled in the new federal high-risk pool as of February 29 represent only .04% of the total number of Americans the Administration claimed suffer from pre-existing conditions.

FORBES: Report: Obamacare's High-Risk Pool Spending Doubles Government Estimates