Body perception disturbances in women with pregnancy-related lumbopelvic pain and their role in the persistence of pain postpartum

Table 3 Differences between groups at 6 weeks postpartum, reported as median (interquartile range)

					Test statistic for pairwise comparison (p-value) (ES)
	No LPP (n = 18)	Non-disabling LPP (n = 18)	Minimally disabling LPP (n = 18)	Test statistic (p-value)	No LPP - Non-disabling LPP	No LPP - Minimally disabling LPP	Non-disabling LPP - Minimally disabling LPP
Age (years)	31 (29–33)	31 (29–33)	32 (30–34)	1.54^a (0.46)	159.0^b (0.92)	128.5^b (0.29)	128.5^b (0.28)
C-section (yes/no)	3/15	3/15	7/11	2.96^c (0.24)	NA	NA	NA
NPRS LPP	0 (0–0)	1 (1–2)	4 (4–6)	NA	NA	NA	66.5^b (0.002) (−0.52)
ODI-2	0 (0–0)	0 (0–1)	10 (8–16)	41.95^a (< 0.001)	128.5^b (0.10)	5.0^b (< 0.001) (−0.88)	0.0^b (< 0.001) (−0.88)
FreBAQ	0 (0–0)	2 (0–5)	3.5 (0–10)	13.24^a (0.001)	85.0^b (0.005)	63.0^b (0.001) (0.57)	123.0^b (0.21)

Abbreviations: LPP lumbopelvic pain, C-section Caesarean section delivery, NPRS Numerical Pain Rating Scale (0–10), ODI-2 Oswestry Disability Index – version 2 (0–100), FreBAQ Fremantle Back Awareness Questionnaire (0–36), ES effect size, NA not applicable
Significant p-values highlighted in bold. Effect size for between-group differences are reported for statistically significant results
^aKruskal-Wallis H-value
^bMann-Whitney U-value
^cFisher-Freeman-Halton Exact test value

ISSN: 1471-2393