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Table 2 Baseline characteristics of women with linked perinatal data (NSW only, N = 1914) and the other women without linked data (ALSWH, N = 12333) from the Australian Longitudinal Study on Women’s Health 1973–78 cohort

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

 

Included in the agreement study (NSW only)

Record not linked with PDC (the other women in the ALSWH cohort)

Characteristica

Age***

20.9 years

20.7 years

 

n

%

N

%

Number of respondents at each survey***

 1

1914

100.0

12333

100.0

 2

1522

79.5

8166

66.2

 3

1570

82.0

7511

60.9

 4

1633

85.3

7512

60.9

 5

1481

77.4

6719

54.5

 6

1452

75.9

6558

53.2

Urban resident***

1105

57.7

6764

54.8

Partneredb***

526

27.6

2667

21.7

Difficulty managing on income

1005

52.5

6325

51.5

Education***

 No formal education

41

2.2

367

3.0

 School or higher school certificate

1274

66.8

8345

68.1

 Trade or diploma

355

18.6

2208

18.0

 University or higher university degree

237

12.4

1339

10.9

Parity**

 None

1497

78.8

10062

82.2

 One

253

13.3

1308

10.7

 Two or more

137

7.2

813

6.7

Smoking Status*

 Never Smoked

965

52.9

6158

52.2

 History of Smoking

297

16.3

1788

15.2

 Current Smoker

562

30.8

3859

32.7

Alcohol Intake Status

 Non Drinker

164

8.7

1090

8.9

 Rarely drinks/low risk drinker

1633

86.5

10419

85.4

 Often drinks/high risk drinker

91

4.8

691

5.7

  1. n number, PDC Perinatal Data Collection
  2. *P-value is statistically significant at ≤0.05
  3. **P-value is statistically significant at ≤0.01
  4. ***P-value is statistically significant at ≤0.001
  5. aParticipant characteristics were taken at baseline when the women were aged 18–23 years (ALSWH survey 1 (1996))
  6. bIncludes those women who are married or in a de facto relationship