The researchers note that 30% of the patients had diagnosed IHD, but that it is likely that many had unrecognized IHD based on autopsy studies and other obserational studies.

• 研究人员提出有30%25的患者诊断患有IHD，但是似乎许多没有被确诊的IHD是通过尸检和其他检测方式确立的。