77
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Ülkemizde, akciğer kanserine ilişkin araştırmalarda yaşam çözümlemesi yöntemlerinden Cox orantılı tehlikeler modelinden yararlanılmaktadır. Fakat çalışma verisinin homojen olmadığı durumlarla da karşılaşılmaktadır. Yaşam verisinin homojen olmaması, çözümleme sonucunda ulaşılan değerlendirmelerin etkinliğinin azalmasına ve verinin yeterince açıklanamamasına neden olmaktadır.
Bu nedenle, yaşam çözümlemesi verilerinde heterojenliğinin açıklanabilmesi için zayıflık modellerinin göz önüne alınması gerekmektedir.
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