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Table 1 Descriptive information on MPI-S subgroups

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

  MPI-S subgroups Total
n = 226
P-valuee
IDa
n = 53
DYSb
n = 82
ACc
n = 91
X 2 F
Age, mean (SD) 43.8 (5.1) 42.8 (4.5) 43.6 (4.6) 43.4 (4.7)   0.38
Marital status
 Married/cohabiting 42 (85.7) 65 (92.2) 65 (91.5) 172 (90.5) 0.27  
 Relationship but not cohabiting 2 (4.1) 4 (5.7) 2 (2.8) 8 (4.2)  
 Single 5 (10.2) 1 (1.4) 4 (5.6) 10 (5.3)  
Education in 2002
 Up to high school/folk school 29 (54.7) 43 (53.8) 47 (52.8) 119 (53.6) 0.96  
 University or higher 24 (45.3) 37 (46.3) 42 (47.2) 103 (46.4)  
Total number of children
 1 14 (26.4) 16 (19.5) 23 (25.3) 53 (27.0) 0.72  
 2 16 (30.2) 21 (25.6) 28 (30.8) 65 (33.2)  
 3 12 (22.6) 26 (31.7) 26 (28.6) 64 (32.7)  
 ≥ 4 11 (20.8) 19 (23.2) 14 (15.4) 44 (22.4)  
Physical activity
 Yes 33 (62.3) 53 (66.3) 66 (73.3) 152 (68.2) 0.35  
 No 20 (37.7) 27 (33.8) 24 (26.7) 71 (31.8)  
Body Mass Index (BMI), mean (SD) 25.0 (5.3) 24.9 (4.3) 25.9 (4.1) 25.2 (4.4)   0.67
Relationship satisfaction
 Very good 18 (37.5) 47 (58) 54 (62.8) 119 (55.3) 0.13  
 Good 18 (37.5) 23 (28.4) 24 (27.9) 65 (30.2)  
 Neither good or bad 9 (18.8) 9 (11) 7 (8.1) 25 (11.6)  
 Bad 2 (4.2) 2 (2.4) 1 (1.2) 5 (2.3)  
 Very bad 1 (2.1) 1 (0.5)  
Low back pain before pregnancy in 2002
 No 5 (27.8) 21 (48.8) 18 (69.2) 44 (50.6) 0.025  
 Yes 13 (72.2) 22 (51.2) 8 (30.8) 43 (49.2)  
Pain status
 No pain 14 (26.9) 30 (36.6) 65 (72.2) 109 (48.7) < 0.0001  
 Pain 38 (73.1) 52 (63.4) 25 (27.8) 115 (51.3)  
Pain intensity the past week (VASd), mean (SD) 38.0 (28.6) 41.4 (31.9) 15.2 (19.7) 31.68 (29.8)   < 0.0001
Pain intensity the past 12 months (VASd), mean (SD) 58.7 (23.4) 52.2 (23.9) 40.4 (20.0) 52.3 (23.9)   < 0.0001
Self-reported health (SRH)
 Very good 3 (5.7) 2 (2.5) 24 (26.4) 29 (12.9) < 0.0001  
 Quite good 19 (35.8) 29 (35.8) 52 (57.1) 100 (44.4)  
 Fair 18 (34.0) 28 (34.6) 13 (14.3) 59 (26.2)  
 Quite poor 12 (22.6) 17 (21.0) 1 (1.1) 30 (13.3)  
 Poor 1 (1.9) 5 (6.2) 1 (1.1) 7 (3.1)  
  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