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Table 2 Comparison of admission assessment criteria for eligible women by monitoring type pre- and post- intervention

From: Intelligent Structured Intermittent Auscultation (ISIA): evaluation of a decision-making framework for fetal heart monitoring of low-risk women

Ā 

Pre ā€“intervention medical record review

Postā€“intervention medical record review

Significance

Pre ā€“intervention medical record review

Postā€“intervention medical record review

Sig.level

Admission assessment criteria

Eligible women receiving IA

Eligible women receiving IA

Ā 

Eligible women receiving CTG

Eligible women receiving CTG

Ā 

n = 157/%

n = 158/%

n = 130/%

n = 107/%

Admission CTG

Ā Ā Ā Ā Ā Ā 

Yes

88 (56.1)

67 (42.4)

RR 0.75, 95% CI, 0.60 ā€“ 0.95, p = 0.016

120 (92.3)

99 (92.5)

NS

Abdominal palpation

Ā Ā Ā Ā Ā Ā 

Yes

89 (56.7)

82 (51.9)

NS

80 (61.5)

63 (58.9)

NS

Fetal lie

Ā Ā Ā Ā Ā Ā 

Yes

67 (42.7)

56 (35.4)

NS

59 (45.4)

46 (43)

NS

Fetal position

Ā Ā Ā Ā Ā Ā 

Yes

72 (45.8)

67 (42.4)

NS

65 (50)

57 (53.3)

NS

Fetal presentation

Ā Ā Ā Ā Ā Ā 

Yes

83 (52.9)

70 (44.3)

NS

75 (57.7)

57 (53.3)

NS

Fetal descent

Ā Ā Ā Ā Ā Ā 

Yes

67 (42.7)

54 (34.2)

NS

61 (47)

47 (43.9)

NS

Fetal movement (FM) patterns

Ā Ā Ā Ā Ā Ā 

Yes

25 (15.9)

32 (20.3)

NS

25 (19.2)

21 (20)

NS

FM palpated by midwife and woman

Ā Ā Ā Ā Ā Ā 

Yes

0 (0)

3 (1.9)

NS

4 (3.1)

3 (2.8)

NS

FHR heard during FM

Ā Ā Ā Ā Ā Ā 

Yes

0 (0)

7 (4.4)

Fisherā€™s Exact p = .015

1 (0.8)

3 (2.8)

NS

Uterine activity

Ā Ā Ā Ā Ā Ā 

Yes

99 (63.1)

115 (72.8)

NS

71 (54.6)

69 (64.5)

NS

Contraction frequency

Ā Ā Ā Ā Ā Ā 

Yes

109 (69.4)

97 (61.4)

NS

61 (47)

49 (45.8)

NS

Contraction Duration

Ā Ā Ā Ā Ā Ā 

Yes

38 (24.2)

36 (22.8)

NS

18 (13.8)

12 (11.2)

NS

Contraction strength

Ā Ā Ā Ā Ā Ā 

Yes

59 (37.6)

55 (34.8)

NS

31 (23.8)

30 (28)

NS

Uterine resting tone

Ā Ā Ā Ā Ā Ā 

Yes

1 (0.6)

0 (0)

NS

0 (0)

2 (1.9)

NS

FHR documented as a single number

Ā Ā Ā Ā Ā Ā 

Yes

67 (42.7)

83 (52.5)

NS

50 (38.5)

44 (41.1)

NS

Maternal pulse noted

Ā Ā Ā Ā Ā Ā 

Yes

7 (44.5)

32 (20.3)

RR 4.54 95% CI, 2.06 ā€“ 9.98, p = 0.0002

8 (6.2)

27 (25.2)

RR 4.10 95% CI, 1.94 ā€“ 8.64, p = 0.0002

FH rhythm noted

Ā Ā Ā Ā Ā Ā 

Yes

1 (0.6)

3 (1.9)

NS

0 (0)

6 (5.6)

Fisherā€™s Exact p = .008

Accelerations noted

Ā Ā Ā Ā Ā Ā 

Yes

61 (38.8)

33 (20.9)

RR 1.29 95% CI 1.11 ā€“ 1.50, p = <0.0007

59 (45.4)

38 (35.5)

NS

Decelerations noted

Ā Ā Ā Ā Ā Ā 

Yes

39 (24.8)

26 (16.5)

NS

47 (36.2)

35 (32.7)

NS