Purpose
To determine if pain screening and functional assessment results are associated with new diagnoses and treatment for pain in primary care.
Patients and Methods
Observational study at 13 primary care sites of a statewide federally qualified health center that implemented routine screening and functional assessment for all adults in primary care. The study group included 10,091 adults aged 18+ who had an in-person visit between July 2, 2018, and June 1, 2019, where they screened positive for chronic pain and completed a 3-question functional assessment with the PEG (Pain, Enjoyment of Life, General Activity). Multivariate logistic regressions quantified associations between pain frequency, diagnosis and treatment, sociodemographics, comorbidities, and self-reported severe pain impairment with pain diagnoses and treatment documented after screening.
Results
Patients were mostly women (60.3%), Latinx (41.1%), English-speaking (80.1%), and Medicaid-insured (62.0%); they averaged 49.1 years old (SD = 13.7 years). Patients with severe pain impairment or who were Latinx were more likely to get a newly documented pain diagnosis (absolute risk difference [ARD]: 13.2% and 8.6%, ps < 0.0001), while patients with mental health/substance use or medical comorbidities were less likely (ARDs: −20.0% to −6.2%, ps < 0.001). Factors most consistently associated with treatment were prior treatment of the same modality (4 of 7 treatments, ARDs = 27.3% to 44.1%, ps <0.0001), new pain diagnosis (5 of 7, ARDs = 3.2% to 27.4%, ps <0.001), and severe impairment (4 of 7, ARDs = 2.6% to 6.5%, ps < 0.0001). A new diagnosis had the strongest association with non-opioid pain analgesics and physical medicine (ARD = 27.0% and 27.4%, p < 0.0001). Latinx patients were less likely to receive opioid analgesics and mental health/substance use medications and counseling (ARDs = −3.3% to 7.5%, ps <0.0001).
Conclusion
Screening and assessment with patient-reported tools may influence pain care. Care for Latinx patients differed from non-Latinx white patients.