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The Sister Study


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When a participant’s death is reported, information about cause(s) of death and antecedent health conditions is sought through the participant’s next-of-kin or designated contact persons. A copy of the death certificate and permission for medical record or pathology report retrieval, as appropriate, are also requested from the participant’s next-of-kin.

In addition, the Sister Study performs annual linkages to the National Death Index database (NDI Plus) to obtain vital status and cause of death for participants lost to follow up, as well as confirm reported deaths and obtain cause of death. Other conditions present at death are also provided by NDI Plus. The number of deaths, and causes of death, are presented in the tables below. ICD10 codes used for each cause of death can be found here.










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