Does progestin-only contraceptive use after pregnancy affect recovery from pelvic girdle pain? A prospective population study

Elisabeth Krefting Bjelland, Katrine Mari Owe, Hedvig Marie Egeland Nordeng, Bo Lars Engdahl, Per Kristiansson, Siri Vangen and Malin Eberhard-Gran

PLOS ONE, 2017, vol. 12, issue 9, 1-14

Abstract: Objective: To estimate associations of progestin-only contraceptives with persistent pelvic girdle pain 18 months after delivery. Methods: Prospective population based cohort study during the years 2003–2011. We included 20,493 women enrolled in the Norwegian Mother and Child Cohort Study who reported pelvic girdle pain in pregnancy week 30. Data were obtained by 3 self-administered questionnaires and the exposure was obtained by linkage to the Prescription Database of Norway. The outcome was pelvic girdle pain 18 months after delivery. Results: Pelvic girdle pain 18 months after delivery was reported by 9.7% (957/9830) of women with dispense of a progestin-only contraceptive and by 10.5% (1114/10,663) of women without dispense (adjusted odds ratio 0.93; 95% CI 0.84–1.02). In sub-analyses, long duration of exposure to a progestin intrauterine device or progestin-only oral contraceptives was associated with reduced odds of persistent pelvic girdle pain (Ptrend = 0.021 and Ptrend = 0.005). Conversely, long duration of exposure to progestin injections and/or a progestin implant was associated with modest increased odds of persistent pelvic girdle pain (Ptrend = 0.046). Early timing of progestin-only contraceptive dispense following delivery (≤3 months) was not significantly associated with persistent pelvic girdle pain. Conclusions: Our findings suggest a small beneficial effect of progestin intrauterine devices and progestin-only oral contraceptives on recovery from pelvic girdle pain. We cannot completely rule out an opposing adverse effect of exposure to progestin injections and/or progestin implants. However, the modest increased odds of persistent pelvic girdle pain among these users could be a result of unmeasured confounding.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0184071

DOI: 10.1371/journal.pone.0184071

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