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Table 2 Accuracy of maternal Indigenous status in the MDC and RBDM birth 2001-2005, NSW

From: Improvement of maternal Aboriginality in NSW birth data

  

Consistency

MDC

RBDM birth

Year

       
 

n

n 1

%

Sensitivity

Specificity

Sensitivity

Specificity

2001

80,027

79,191

98.96

65.47

99.77

87.20

99.17

2002

78,338

77,495

98.92

65.30

99.74

85.90

99.16

2003

77,756

76,966

98.98

66.69

99.75

86.59

99.21

2004

79,389

78,555

98.95

67.15

99.72

85.32

99.21

2005

74,631

73,974

99.12

69.33

99.76

85.88

99.35

Total

390,141

386,181

98.98

66.70

99.75

86.18

99.22

  1. Missing records total 8,066, accounting for 2.0%.
  2. n: number of linked records between MDC and RBDM
  3. n1: consistent number between MDC and RBDM