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Table 5 Agreement Rates of VA Mortality Data with NDI Dates by Source and Level of Precision*

From: Accuracy and completeness of mortality data in the Department of Veterans Affairs

Source Number of Deaths Death Dates in a Source that Agree with NDI Dates (%)
   Exactly Within 2 Days In Year and Month
BIRLS-DF 229 222 (96.9) 224 (98.2) 225 (98.7)
MSID 35 35 (100.0) 35 (100.0) 35 (100.0)
MVS 246 235 (95.5) 239 (97.2) 244 (99.2)
SSA-DMF 272 260 (95.6) 265 (97.4) 270 (99.3)
Combined 292 285 (97.6) 288 (98.6) 291 (99.7)
  1. * NDI indicates the National Death Index; BIRLS-DF, the Beneficiary Identification and Resource Locator Subsystem Death File; MSID, the VHA Medical SAS Inpatient Datasets; MVS, Medicare Vital Status; SSA-DMF, the Social Security Administration Death Master File.