Table 5 Associations between Pelvic Girdle Pain (PGP) (no/yes) and risk factors at postpartum week 14 presented with crude and adjusted odds ratios (OR). Two final models are presented: in Model 1 the focus is on Ethnicity and personal factors and in Model 2 the focus is at risk factors for PGP

Ethnicity

Western

Reference

0.002

Reference

0.006

-

South Asia

2.2 (1.4, 3.4)

2.3 (1.4, 3.7)

Middle East

1.6 (0.9, 2.6)

1.5 (0.8, 2.7)

Mixed ethnic group

1.1 (0.7, 1.9)

1.1 (0.6, 1.9)

Parity

Nulliparous

Reference

<0.001

Reference

0.001

Reference

<0.001

Primiparous

0.9 (0.6, 1.3)

0.8 (0.5, 1.3)

0.7 (0.5, 1.1)

Multiparous

2.3 (1.5, 3.5)

2.0 (1.15, 3.3)

1.9 (1.2, 3.0)

PGP locations at GW15

No pain (352)

Reference

<0.001

Reference

<0.001

Symphysis (50)

2.2 (1.2, 4.1)

2.0 (1-1, 3.8)

Posterior PGP (94)

2.0 (1.2, 3.2)

2.0 (1.1, 3.1)

Combined symphysis and posterior PGP (109)

4.1 (2.6, 6.4)

3.9 (2.5, 6.2)

EDPS>10 at GW28

Yes (79)

1.9 (1.2, 3.1)

0.008

-

-