Exploring low back and pelvic pain challenges: Administrative insights into prevalence during pregnancy among 2016-2021 South Carolina Medicaid beneficiaries.

BACKGROUND

Musculoskeletal changes occur during pregnancy; one-half of pregnant women experienced low back pain and/or pelvic pain during pregnancy. Prescription opioid use for Medicaid enrolled pregnant women has increased dramatically due to severe low back pain/pelvic pain.

OBJECTIVES

This study aimed to explore the prevalence of low back pain/pelvic pain and related risk factors among a broader population.

DESIGN

This is a retrospective cohort study.

METHODS

This study utilized de-identified Medicaid claims data provided by the South Carolina Revenue and Fiscal Affairs Office, including individuals who gave birth between 2016 and 2021 during pregnancy. Low back pain/pelvic pain and a group of musculoskeletal risk factors were identified with International Classification of Diseases v10. Comparisons were made for the prevalence of low back pain and pelvic pain between those with pregnancy-related musculoskeletal risk and those without.

RESULTS

Among 167,396 pregnancies, 65.6% were affected by musculoskeletal risk factors. The overall prevalence of low back pain was 15.6%, and of pregnancy-related pelvic pain was 25.2%. The overall prevalence for either low back pain or pelvic pain was 33.3% (increased from 29.5% in 2016 to 35.3% in 2021), with 24.6% being pregnancy-induced. Pregnancies with musculoskeletal risk factors were more likely to be diagnosed with low back pain (20.7% versus 5.7%,  < 0.001) or pelvic pain (35.3% versus 6.0%,  < 0.001) than those without.

CONCLUSION

This study found a very high prevalence of musculoskeletal risk and a high prevalence of low back pain or pelvic pain, with an increasing trend, among South Carolina pregnancies enrolled in Medicaid during the period 2016-2021. Most of the diagnosed low back pain or pelvic pain were pregnancy induced. Musculoskeletal risk factors were associated with low back pain or pelvic pain.