PubMed
På Pubmed hittade jag den här studien som är gjord på 313 gravida kvinnor.
Den är från 2006 och heter:
Pelvic girdle pain and lumbar pain in pregnancy: a cohort study of the consequences in terms of health and functioning.
RESULTS:
Of 313 women, 194 had lumbopelvic pain. The PPGP subgroup comprised 54% of those women with lumbopelvic pain, lumbar pain 17%, and combined PPGP and lumbar pain 29%. Women having both PPGP and lumbar pain reported the highest consequences in terms of health and functioning.
http://www.ncbi.nlm.nih.gov/pubmed/16508539?dopt=Citation
http://www.gu.se/forskning/publikation/?publicationId=52979
Båda länkarna tar dig till studien.
Jag snubblade även över en studie från 2007 om depression och ländryggs- och bäckensmärta:
Pelvic girdle pain and lumbar pain in relation to postpartum depressive symptoms
CONCLUSIONS:
Postpartum depressive symptoms were 3 times more prevalent in women having lumbopelvic pain than in those without. This comorbidity highlights the need to consider both symptoms in treatment strategies.