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Table 1 Characteristics of mothers with late preterm, early term and full term deliveries by delivery onset

From: Is maternal trait anxiety a risk factor for late preterm and early term deliveries?

 

Spontaneous deliveriesa

Provider-initiated deliveries

All deliveries

Gestational lengthb

Late preterm

Early term

Full term

Late preterm

Early term

Full term

Late preterm

Early term

Full term

N

1812

9701

56 527

1 007

4535

7824

2819

14054

64351

Anxiety Groupsc

%

%

%

%

%

%

%

%

%

 Very high

2.8

2.6

2.0

4.6

3.6

2.9

3.4

2.9

2.1

 High

3.5

3.1

3.1

3.4

4.1

4.1

3.4

3.4

3.2

 Low

36.6

33.7

32.6

38.2

37.9

35.8

37.2

35.0

33.0

 Very low

57.1

60.6

62.3

53.8

54.5

57.1

55.9

58.7

61.7

Age, y; mean ± SD

29.6±5.0

29.7± 3.6

29.9±4.5

30.4±5.0

31.1±4.8

30.8±4.8

29.9 ± 5.0

30.1±4.7

30.1±4.5

Body Mass Index; mean ±SD

24.0±4.4

23.6±4.1

23.7±4.0

24.7±4.9

25.0±4.9

25.1±4.8

24.2 ± 4.6

24.1±4.4

23.9±4.1

Education less than college

43.6

39.8

37.4

42.2

43.1

39.7

43.1

40.9

37.7

Primiparous

53.9

44.9

42.8

48.6

34.2

45.3

52.0

41.6

43.1

Gestational diabetes

0.9

0.8

0.4

1.7

2.9

2.5

1.2

1.5

0.7

Gestational hypertension

5.7

3.9

2.7

37.9

15.9

16.4

17.2

7.6

4.3

Cesarean section

4.9

6.6

9.2

55.0

60.4

41.9

25.6

23.2

9.4

  1. aSpontaneous deliveries (SD) = delivery onset by spontaneous labor or spontaneous rupture of the membranes
  2. bLate preterm: weeks 34-36; early term: weeks 37-38; full term: weeks 39-41
  3. cCut-points at mean and ± 2 standard deviations. ‘Very low’ = 1.0-1.25; ‘low to mean = 1.26-1.95; ‘mean to high’ = 1.96-2.30; ‘high’ =  2.31-4.00