^*Death was adjudicated for CT and OS participants through Ext1. In Ext2, death is only adjudicated for the Medical Record Cohort (MRC). Non MRC cause of death is determined by the initial cause of death form (form 120). See the DEATHSRC variable for details about the death adjudication process. This variable censors deaths that occur after the participant's last consented study phase, e.g. if a ppt did not consent to Ext2, but we discovered that she died during Ext2 DEATH would have a value of 0. This is done because the discovery rate of death is inconsistent after participant followup ends. See the DEATHALL variable in the All Discovered Death Outcome Detail file to see all discovered deaths.

^*Cause of death is usually determined from the form 124 underlying cause of death subclass question. If this question is answered other/unknown and has an ICD code, the cause of death will be determined from the ICD code. In the case of an Ext2 SRC death, the cause of death comes from the form 120 subclass question.

^*"Unknown cause (Not yet adj)" (code 100) are reported deaths where the adjudication is in process. If the form 124 was marked Other or Unknown cause of death the ICD code was used to determine cause of death (see the UNDRICD variable in the death detail file). A cross tabulation of DEATHCAUSE with UNDRICD should be examined to ascertain which ICD codes are included in each DEATHCAUSE category.

^*During the core WHI study, central adjudications of Death were only done in the CT. In Ext1 deaths were centrally adjudicated for all participants.