Table 3 Multivariable analysis showing association between phone call intervention and adverse maternal–fetal outcome

Phone call communication

 No

38/102 (37.3)

Ref

Ref

 Yes

9/75 (12.0)

0.23 (0.10—0.51)

 < 0.001

0.22 (0.09—0.44)

0.001

Delay at admission bench

  < 30 min

15/71 (21.1)

Ref

Ref

 30–60 min

11/49 (22.5)

1.08 (0.45 – 2.61)

0.863

0.91 (0.35 – 2.32)

0.836

  > 60 min

21/57 (36.8)

2.18 (0.99 – 4.77)

0.052

1.01 (0.41 – 2.47)

0.990

Age in years

 16–24

24/100 (24.0)

Ref

Ref

 25–34

18/62 (29.0)

1.30 (0.63—2.65)

0.478

1.86 (0.72 – 4.78)

0.201

  ≥ 35

5/15 (33.3)

1.58 (0.49—5.09)

0.440

2.31 (0.42 – 12.7)

0.335

Gravidity

 1

17/63 (27.0)

Ref

Ref

 2–4

20/80 (25.0)

0.90 (0.43—1.91)

0.788

0.67 (0.28—1.68)

0.335

  > 4

10/34 (29.4)

1.13 (0.45—2.84)

0.799

0.59 (0.14 – 2.89)

0.472