Skip to main content

Table 3 Agreement of perinatal outcomes between self-reported survey data and the Perinatal Data Collection, by mother, at first-reporta for women in the Australian Longitudinal Study on Women’s Health 1973–78 cohort (NSW data only)

From: Agreement between self-reported perinatal outcomes and administrative data in New South Wales, Australia

Agreement of self-report survey data and administrative data

Agreement

Perinatal outcomes

Y/Yb

N/Nc

Y/Nd

N/Ye

Total n

% Agreement

Kappa

P-value

First-reporta

       

Gestational hypertension with or without proteinuria

141

1500

137

63

1841

89.1

0.52

<0.001

Gestational diabetes

59

1665

138

8

1870

92.2

0.42

<0.001

Premature birth

        

 Live birth, 36 weeks or lessf

57

1737

63

53

1910

93.9

0.46

<0.001

 Live birth, less than 37 weeksg

72

1613

107

28

1820

92.6

0.48

<0.001

Low birth weight (<2500 g)

116

1694

84

19

1914

94.6

0.66

<0.001

  1. N no, Y yes
  2. a‘First-report’ data is the first-reported occurrence (‘yes’ or ‘no’)
  3. bY/Y = positive survey/positive administrative
  4. cN/N = negative survey/negative administrative
  5. dY/N = positive survey/negative administrative
  6. eN/Y = negative survey/positive administrative
  7. fSelf-report data at surveys 2–4, with premature birth defined as 36 weeks or less
  8. gSelf-report data at surveys 5–6, with no specified gestational cut-off provided for premature birth classification