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Table 2 Oswestry disability index items

From: The association between pelvic girdle pain and sick leave during pregnancy; a retrospective study of a Norwegian population

  Sick leave for PGP No sick leave Sick leave for other reason Total
N = 190 N = 96 N = 154 N = 440
ODI item Mean (SD) Mean (SD) E.S.a Mean (SD) E.S.a Mean (SD)
Pain intensity 2.76 (0.86) 1.67 (1.13) 1.142 1.81 (0.99) 1.024 2.19 (1.09)
Personal care 1.23 (1.40) 0.59 (0.97) 0.591 0.53 (0.98) 0.655 0.85 (1.10)
Lifting 2.18 (1.19) 0.95 (1.12) 1.056 1.30 (1.16) 0.751 1.60 (1.27)
Walking 1.63 (0.99) 0.65 (0.94) 1.007 0.85 (1.05) 0.762 1.15 (1.09)
Sitting 1.68 (0.96) 0.80 (0.98) 0.905 1.07 (1.11) 0.589 1.28 (1.08)
Standing 2.44 (1.24) 1.17 (1.28) 1.018 1.48 (1.27) 0.769 1.83 (1.37)
Sleeping 1.67 (1.02) 0.82 (0.88) 0.872 1.04 (0.88) 0.657 1.26 (1.01)
Sex 1.75 (1.50) 0.76 (1.19) 0.707 0.76 (1.30) 0.701 1.18 (1.45)
Social function 1.89 (1.26) 0.83 (1.17) 0.862 0.79 (1.14) 0.911 1.27 (1.31)
Travelling 1.63 (1.26) 0.61 (1.00) 0.860 0.82 (1.11) 0.680 1.12 (1.24)
  1. E.S.: Effect size (Cohen’s d. >0.8 is considered large)
  2. aAll differences of means statistically significant assuming a Bonferroni corrected alpha of p < .005
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