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Table 3 Maternal Indigenous status in linked birth data (MDC and RBDM birth), 2001-2005, NSW

From: Improvement of maternal Aboriginality in NSW birth data

   Maternal Indigenous status Missing
Sources Year n1 Indigenous % 95%CI n2 Missing records %
MDC 2001 80,931 1,489 1.84 1.75 1.93 80,972 41 0.05
  2002 81,303 1,497 1.84 1.75 1.93 81,348 45 0.06
  2003 81,131 1,472 1.81 1.72 1.90 8,1167 36 0.04
  2004 79,972 1,517 1.90 1.81 1.99 80,003 31 0.04
  2005 74,631 1,261 1.69 1.60 1.78 74,717 86 0.12
  Total 397,968 7,236 1.82 1.78 1.86 398,207 239 0.06
RBDM birth 2001 80,068 1,894 2.37 2.26 2.48 80,972 904 1.12
  2002 78,378 1,858 2.37 2.26 2.48 81,348 2,970 3.65
  2003 77,786 1,810 2.33 2.22 2.44 81,167 3,381 4.17
  2004 79,420 1,879 2.37 2.26 2.48 80,003 583 0.73
  2005 74,717 1,562 2.09 1.99 2.19 74,717 0 0.00
  Total 390,369 9,003 2.31 2.26 2.36 398,207 7,838 1.97
ASV 2001 80,972 2,143 2.65 2.54 2.76 80,972 0 0.00
  2002 81,343 2,143 2.63 2.52 2.74 81,348 5 0.01
  2003 81,161 2,075 2.56 2.45 2.67 81,167 6 0.01
  2004 80,003 2,135 2.67 2.56 2.78 80,003 0 0.00
  2005 74,717 1,740 2.33 2.22 2.44 74,717 0 0.00
  Total 398,196 10,236 2.57 2.52 2.62 398,207 11 0.00
Estimates by capture-recapture method 2001 80,027 2,172 2.71 2.68 2.75 80,972 945 1.17
  2002 78,338 2,161 2.76 2.72 2.79 81,348 3,010 3.70
  2003 77,756 2,090 2.69 2.66 2.72 81,167 3,411 4.20
  2004 79,389 2,201 2.77 2.74 2.81 80,003 614 0.77
  2005 74,631 1,819 2.44 2.41 2.47 74,717 86 0.12
  Total 390,141 10,443 2.68 2.64 2.71 398,207 8,066 2.03
  1. n1 Records without 'missing' in Indigenous status
  2. n2 Total linked records