Table 2 Pregnancy parameters of the first-time mothers in the IA and non-IA groups

First visit to MCH (days pregnant)

64.7 (42.0)

63.5–65.9

64.8 (40.5)

64.4–65.1

0.9169

0.7785

−0.1752

−1.40–1.05

Number of MHC visits

13.4 (3.8)

13.3–13.5

13.3 (3.8)

13.3–13.3

0.0443

0.0179

0.1359

0.02–0.25

Number of check-ups at hospital

3.2 (2.9)

3.1–3.2

2.9 (2.6)

2.9–3.0

<0.0001

0.0374

0.0802

0.00–0.16

Number of all pregnancy follow-up visits

16.6 (4.8)

16.5–16.7

16.2 (4.6)

16.2–16.3

<0.0001

0.0008

0.2282

0.10–0.36

n

%

n

%

p

p

OR

95 % CI

Late first visits to MHC (> h12 + 0)

348

6.74

3,229

6.18

0.1167

0.7491

1.02

0.91–1.15

Under-utilisation of maternity care

0

12

0.24

129

0.25

1.406

0.69–2.88

1–8

97

1.92

1,249

2.46

0.747

0.60–0.92

>8

4,930

97.84

49,400

97.29

0.0601

0.0165

1

Blood glucose tolerance test performed

2,319

44.88

23,880

45.71

0.2535

0.0393

0.93

0.87–1.00

Pathological blood sugar tolerance level

505

9.77

4,459

8.54

0.0025

0.4104

1.04

0.94–1.16

Participation to first trim serum screening

1,728

33.44

18,208

34.86

0.0432

0.0543

0.94

0.88–1.00

Participation to second trim serum screening

148

2.86

1,447

2.77

0.6896

0.7093

1.03

0.87–1.23

Participation to first trim ultrasound screening

3,785

73.25

37,751

72.27

0.1336

0.0593

1.07

1.00–1.14

Participation to second trim ultrasound screening

4,332

83.84

43,065

82.44

0.0112

<0.0001

1.20

1.11–1.31

Placenta sample taken

52

1.01

497

0.95

0.7076

0.9427

0.99

0.74–1.33

Amniotic fluid sample taken

126

2.44

903

1.73

0.0004

0.0065

1.32

1.08–1.61

 Bleeding

20

0.39

249

0.48

0.4538

0.2433

0.76

0.48–1.21

 High blood pressure

144

2.79

1,489

2.85

0.8265

0.7239

0.97

0.81–1.16

 Prematurity

63

1.22

650

1.24

0.9475

0.6770

0.95

0.73–1.23

 Other reason

312

6.04

2,900

5.55

0.1533

0.4688

1.05

0.93–1.18

Received any hospital treatment (for any of the reasons mentioned above)

438

8.48

4,243

8.12

0.3792

0.8956

1.01

0.91–1.12

Fertilisation procedure

101

1.95

2,687

5.14

<0.0001

<0.0001

0.42

0.34–0.51

Thrombosis prophylaxis

64

1.24

454

0.87

0.0107

0.0038

1.49

1.14–1.94

Anaemia

155

3.00

1,525

2.92

0.7293

0.8982

1.01

0.85–1.20

Antenatal corticosteroid treatment

131

2.54

1,390

2.66

0.6176

0.4189

0.93

0.77–1.12