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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

  Pre –intervention medical record review Post–intervention medical record review Significance Pre –intervention medical record review Post–intervention medical record review Sig.level
Admission assessment criteria Eligible women receiving IA Eligible women receiving IA   Eligible women receiving CTG Eligible women receiving CTG  
n = 157/% n = 158/% n = 130/% n = 107/%
Admission CTG       
Yes 88 (56.1) 67 (42.4) RR 0.75, 95% CI, 0.60 – 0.95, p = 0.016 120 (92.3) 99 (92.5) NS
Abdominal palpation       
Yes 89 (56.7) 82 (51.9) NS 80 (61.5) 63 (58.9) NS
Fetal lie       
Yes 67 (42.7) 56 (35.4) NS 59 (45.4) 46 (43) NS
Fetal position       
Yes 72 (45.8) 67 (42.4) NS 65 (50) 57 (53.3) NS
Fetal presentation       
Yes 83 (52.9) 70 (44.3) NS 75 (57.7) 57 (53.3) NS
Fetal descent       
Yes 67 (42.7) 54 (34.2) NS 61 (47) 47 (43.9) NS
Fetal movement (FM) patterns       
Yes 25 (15.9) 32 (20.3) NS 25 (19.2) 21 (20) NS
FM palpated by midwife and woman       
Yes 0 (0) 3 (1.9) NS 4 (3.1) 3 (2.8) NS
FHR heard during FM       
Yes 0 (0) 7 (4.4) Fisher’s Exact p = .015 1 (0.8) 3 (2.8) NS
Uterine activity       
Yes 99 (63.1) 115 (72.8) NS 71 (54.6) 69 (64.5) NS
Contraction frequency       
Yes 109 (69.4) 97 (61.4) NS 61 (47) 49 (45.8) NS
Contraction Duration       
Yes 38 (24.2) 36 (22.8) NS 18 (13.8) 12 (11.2) NS
Contraction strength       
Yes 59 (37.6) 55 (34.8) NS 31 (23.8) 30 (28) NS
Uterine resting tone       
Yes 1 (0.6) 0 (0) NS 0 (0) 2 (1.9) NS
FHR documented as a single number       
Yes 67 (42.7) 83 (52.5) NS 50 (38.5) 44 (41.1) NS
Maternal pulse noted       
Yes 7 (44.5) 32 (20.3) RR 4.54 95% CI, 2.06 – 9.98, p = 0.0002 8 (6.2) 27 (25.2) RR 4.10 95% CI, 1.94 – 8.64, p = 0.0002
FH rhythm noted       
Yes 1 (0.6) 3 (1.9) NS 0 (0) 6 (5.6) Fisher’s Exact p = .008
Accelerations noted       
Yes 61 (38.8) 33 (20.9) RR 1.29 95% CI 1.11 – 1.50, p = <0.0007 59 (45.4) 38 (35.5) NS
Decelerations noted       
Yes 39 (24.8) 26 (16.5) NS 47 (36.2) 35 (32.7) NS