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Table 5 Differences between groups of women with and without self-reported PGP, and women with severe and less severe PGP on the NHP, using Mann-Whitney U tests to calculate mean difference and confidence intervals from bootstrap analyses (via t-tests)

From: The association between pregnancy, pelvic girdle pain and health-related quality of life – a comparison of two instruments

 

No PGP

PGP

p-value

Mean difference [95%CI]

Less severe PGP

Severe PGP

p-value

Mean difference [95%CI]

NHP (0–100; 0 best)

 Emotional reactions

4.9 (10.3)

7.6 (12.1)

0.016

2.7 [0.4, 5.7]

7.1 (11.7)

11.0 (14.2)

0.053

3.9 [−1.7, 10.8]

 Sleep

16.3 (19.5)

26.7 (26.5)

0.002

10.4 [5.9,16.0]

25.1 (26.3)

37.3 (26.3)

0.025

12.2 [2.5, 25.2]

 Energy

24.9 (29.6)

44.8 (31.9)

< 0.001

19.9 [13.2,26.9]

42.5 (31.9)

60.1 (28.6)

0.006

17.6 [4.5, 31.6]

 Pain

5.9 (11.3)

40.2 (26.4)

< 0.001

34.3 [29.9, 38.9]

36.7 (25.3)

62.2 (22.6)

< 0.001

25.5 [17.1, 36.9]

 Physical mobility

8.9 (11.5)

27.0 (20.1)

< 0.001

18.1 [14.3, 21.7]

24.0 (18.9)

46.0 (17.3)

< 0.001

22.0 [14.6, 30.3]

 Social isolation

2.7 (8.7)

7.8 (14.9)

0.001

5.1 [2.5, 8.1]

7.4 (15.0)

9.7 (14.8)

0.299

2.3 [−3.0, 9.9]

  1. PGP pelvic girdle pain, NHP Nottingham Health profile, CI confidence interval
  2. Due to skewed data we used Hodges-Lehman’s method to calculate median difference and 95%confidence interval for NHP and this is presented in the paper. This table is to show mean difference with 95%CI (also for NHP) – and will be easier to compare with expected age adjusted means for the instruments (although not appropriate due to skewness)