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Table 3 Risk ratios for the MPI-S groups using ACc as reference of the explantory variable, estimated by modified Poisson regression and adjusted for low back pain prior to pregnancy in 2002

From: Psychosocial and behavioural characteristics in women with pregnancy-related lumbopelvic pain 12 years postpartum

 

IDa

DYSb

n (%)

RR

CI (95%)

p-valuee

n (%)

RR

CI (95%)

p-valuee

Pain status 12 years post partum

49 (22.5)

   

79 (36.2)

   

 No pain

 

1

   

1

  

 Pain

 

2.57

1.76–3.75

< 0.0001

 

2.23

1.53–3.25

< 0.0001

Days with lumbopelvic pain the past 12 months

43 (24.2)

   

73 (41.0)

   

 <30 days

 

1

   

1

  

 ≥30 days

 

2.63

1.72–4.03

< 0.0001

 

2.35

1.55–3.57

< 0.0001

Pain intensity the past week (VASd)

50 (22.8)

   

79 (36.1)

   

 <70 mm

 

1

   

1

  

 ≥70 mm

 

8.38

1.90–37.00

0.005

 

11.00

2.66–45.48

0.001

Pain intensity the past 12 months (VASd)

50 (22.8)

   

79 (36.1)

   

 <70 mm

 

1

   

1

  

 ≥70 mm

 

9.43

2.89–30.72

< 0.0001

 

9.32

2.94–29.57

< 0.0001

Sciatica

43 (24.3)

   

72 (40.7)

   

 No

 

1

   

1

  

 Yes

 

1.81

1.27–2.58

0.001

 

1.77

1.26–2.48

0.001

Neck and/or thoracic pain

28 (29.5)

   

41 (43.2)

   

 No

 

1

   

1

  

 Yes

 

2.09

0.94–4.62

0.07

 

1.98

0.92–4.26

0.08

Days with neck or thoracic pain the past 12 months

39 (26.5)

   

62 (42.2)

   

 <30 days

 

1

   

1

  

 ≥30 days

 

1.62

1.12–2.34

0.01

 

1.51

1.05–2.16

0.03

Sick leave the past 12 months

42 (24.3)

   

71 (41.0)

   

 No

 

1

   

1

  

 Yes

 

2.13

0.51–8.82

0.30

 

5.44

1.70–17.38

0.004

Treatment sought the past 12 months

43 (24.4)

   

73 (41.5)

   

 No

 

1

   

1

  

 Yes

 

1.51

0.91–2.52

0.11

 

2.28

1.50–3.46

< 0.0001

Prescription and/or non-prescription drugs

50 (23.1)

   

78 (36.1)

   

 No

 

1

   

1

  

 Yes

 

1.66

1.13–2.43

0.009

 

1.70

1.20–2.41

0.003

  1. Numbers in parenthesis are percentage unless otherwise specified
  2. aInterpersonally distressed
  3. bDysfunctional
  4. cAdapative copers
  5. dVisual Analogue Scale
  6. eSignificance test p < 0.05