Association of symptom severity, pain and other behavioral and medical comorbidities with diverse measures of functioning among adults with post-traumatic stress disorder

The Impact of Non-Pain Factors on Pain Interference Among U.S. Service Members and Veterans with Symptoms of Mild Traumatic Brain Injury

U.S. Service members and Veterans (SM/V) experience elevated rates of traumatic brain injury (TBI), chronic pain, and other non-pain symptoms. However, the role of non-pain factors on pain interference levels remains unclear among SM/Vs, particularly those with a history of TBI. The primary objective of this study was to identify factors that differentiate high/low pain interference, given equivalent pain intensity among U.S. SM/V participating in the ongoing Long-term Impact of Military-relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium (LIMBIC-CENC) national multi-center prospective longitudinal observational study. An explainable machine learning was used to identify key predictors of pain interference conditioned on equivalent pain intensity. The final sample consisted of n = 1,577 SM/Vs who were predominantly male (87%), and 83.6% had a history of mild TBI(s) (mTBI), while 16.4% were TBI negative controls. The sample was categorized according to pain interference level (Low: 19.9%, Moderate: 52.5%, and High: 27.6%). Both pain intensity scores and pain interference scores increased with the number of mTBIs (p < 0.001), and there was evidence of a dose response between the number of injuries and pain scores. Machine learning models identified fatigue and anxiety as the most important predictors of pain interference, whereas emotional control was protective. Partial dependence plots identified that marginal effects of fatigue and anxiety were associated with pain interference (p < 0.001), but the marginal effect of mTBI was not significant in models considering all variables (p > 0.05). Non-pain factors are associated with functional limitations and disability experience among SM/V with an mTBI history. The functional effects of pain may be mediated through multiple other factors. Pain is a multi-dimensional experience that may benefit most from holistic treatment approaches that target comorbidities and build supports that promote recovery.

Is psychiatric diagnostic remission associated with reduced prevalence of moderate to severe pain interference and improved functioning among adults with lifetime psychiatric disorders?

BACKGROUND

Chronic pain and non-substance use psychiatric disorders (PD) are common comorbidities, both associated with impaired functioning. However, whether and how the prevalence of pain differs in remitted PD compared to past-year PD has been little studied.

METHODS

In this observational study using data from the National Epidemiologic Survey on Alcohol and Related Conditions III, we compared the prevalence of moderate/severe pain interference (PI) in past-year Vs remitted PD among adults with any lifetime PD. We further studied the association of both PI and PD remission with mental and physical function.

RESULTS

In a sample representative of 77.9 million US adults with lifetime PDs, 31.7 % met criteria for PD remission. The prevalence and adjusted odds of PI was substantially lower among those with remitted PD compared to past-year PD (21.97 % Vs 35.02 %; p < .0001; Odds ratio 0.58, 95 % confidence interval = 0.51-0.66). While PI was independently associated with poorer mental functioning (Regression coefficient (RC) = -4.43, standard error (SE) = 0.33; p < .0001), PD remission was associated with higher mental functioning (RC = 4.79, SE = 0.24; p < .0001). Both PI and PD remission were independently associated with lower physical functioning, but the association was substantially stronger with PI (RC = -15.04, SE 0.27; p < .0001) than PD remission (RC = -0.37, SE 0.15; p = .016).

CONCLUSIONS

The negative association of PD remission with PI and their strong associations with mental functioning, albeit in opposite directions, raises the need to further examine PD as a contributing factor in chronic pain and as a target in its treatment.

Pain Management in Older Adults Before and During the First Year of COVID-19 Pandemic: Prevalence, Trends, and Correlates

BACKGROUND

There is limited knowledge on whether and how health care access restrictions imposed by the coronavirus disease of 2019 pandemic have affected utilization of both opioid and nonpharmacological treatments among US older adults living with chronic pain.

METHODS

We compared prevalence of chronic pain and high impact chronic pain (ie, chronic pain limiting life or work activities on most days or every day in the past 6 months) between 2019 (pre-pandemic) and 2020 (first year of pandemic) and utilization of opioids and nonpharmacological pain treatments among adults aged ≥65 years enrolled in the National Health Interview Survey, a nationally representative sample of noninstitutionalized civilian U.S. adults.

RESULTS

Of 12 027 survey participants aged ≥65 (representing 32.6 million noninstitutionalized older adults nationally), the prevalence of chronic pain was not significantly different from 2019 (30.8%; 95% confidence interval [CI], 29.7%-32.0%) to 2020 (32.1%; 95% CI, 31.0%-33.3%; p = .06). Among older adults with chronic pain, the prevalence of high impact chronic pain was also unchanged (38.3%; 95% CI, 36.1%-40.6% in 2019 versus 37.8%; 95% CI, 34.9%-40.8% in 2020; p = .79). Use of any nonpharmacological interventions for pain management decreased significantly from 61.2% (95 CI, 58.8%-63.5%) in 2019 to 42.1% (95% CI, 40.5%-43.8%) in 2020 (p < .001) among those with chronic pain, as did opioid use in the past 12 months from 20.2% (95% CI, 18.9%-21.6%) in 2019 to 17.9% (95% CI, 16.7%-19.1%) in 2020 (p = .006). Predictors of treatment utilization were similar in both chronic pain and high-impact chronic pain.

CONCLUSION

Use of pain treatments among older adults with chronic pain declined in the first year of coronavirus disease of 2019 pandemic. Future research is needed to assess long-term effects of coronavirus disease of 2019 pandemic on pain management in older adults.

Gender Differences in Diagnostic Remission of Posttraumatic Stress Disorder (PTSD): Proportions and Correlates of Remission in a Nationally Representative U.S. Sample

This study examines differences in a nationally representative sample, in proportions of men and women with lifetime diagnoses of Posttraumatic Stress Disorder (PTSD) who achieved diagnostic remission and gender-specific correlates. Data from the 2012-13 National Epidemiologic Survey on Alcohol and Related Conditions-III included 1,997 adults with a lifetime PTSD diagnosis (70.8% female and 29.2% male). Of these 25.3% of women and 24.3% of men experienced remission (ns). Women who remitted were older than other women, more likely to be retired, and less likely to report disability, past homelessness, suicide attempts, criminal history, violent behavior, or parental histories of drug problems or suicide. Men who remitted were less likely than other men to be separated/divorced, disabled, incarcerated after age 15, and reported fewer violent behaviors. Remission was significantly more strongly associated among women than men with greater age, emergency room visits, trauma and less with schizotypal personality. Although women were twice as likely to be diagnosed with PTSD, there were no significant gender differences in the proportions who experienced remission. Remission was associated with diverse sociodemographic and clinical disadvantages among both men and women but only four were statistically significantly different between genders.

Persistence of significant pain interference following substance use disorder remission: Negative association with psychosocial and physical recovery

BACKGROUND

Although substance use disorder (SUD) is frequently complicated by pain, the prevalence and correlates of persistent pain and dysfunction following SUD remission have not been studied.

METHODS

Using a cross-sectional sample of United States (US) adults with SUD identified in the National Epidemiologic Survey on Alcohol and Related Conditions Wave III, we evaluated the prevalence of moderate/severe pain interference (PI) in subgroups with current and remitted SUD and the independent association of SUD remission and PI with self-reported psychosocial and physical function (Mental Health Composite Score [MCS] and Physical Function Score [PFS] from the Short Form 12).

RESULTS

A fifth (20.6%; 7.6 million) of estimated 36.7 million US adults with past year SUD and a slightly higher proportion (25.6%; 9.6 million) of 37.4 million with SUD remission reported PI. MCS and PFS showed independent negative associations with PI among adults with both past year SUD and SUD remission. MCS had a positive independent association with SUD remission, but a stronger negative association with PI. While PFS had no statistically significant association with SUD remission, it had a strong negative association with PI. Analysis of interaction between SUD remission and PI revealed that SUD remission had no effect on the association of PI and MCS but had significant moderating influence on the association between PI and PFS.

CONCLUSIONS

Moderate to severe pain interference continues to be a significant problem among a sizable population achieving SUD remission potentially impeding recovery, and deserves focused clinical attention both active SUD and its remission.

Impact of an opioid prescribing alert system on patients with posttraumatic stress disorder

BACKGROUND AND OBJECTIVES

Posttraumatic stress disorder (PTSD) is associated with higher rates of chronic pain and increased risk of developing Opioid use disorder. This paper evaluates the impact of PRIMUM, an electronic health record-embedded (EHR) clinical decision support intervention on opioid prescribing patterns for patients with diagnosis of PTSD.

METHODS

Inpatient, emergency department (ED), urgent care, and outpatient encounters with ICD-10 codes F43.1 (PTSD), F43.10 (PTSD, unspecified), F43.11 (PTSD, acute), and F43.12 (PTSD, chronic) at Atrium Health between 1/1/2016 and 12/29/2018 were included in the study.

RESULTS

A total of 3121 patients with a diagnosis of PTSD were seen in 37,443 encounters during the study period. Ten percent (n = 3761) of the encounters resulted in prescriptions for opioids and PRIMUM alerts were triggered in 1488 of these encounters. These alerts resulted in "decision influenced" for 17% of patients (n = 255) or no prescriptions for opioids or benzodiazepines for 5.8% (n = 86). The majority of the prescriptions were below 50 Morphine milligram equivalents (MME)/day, but there were 570 (15.5%) prescriptions for doses of 50-90 MME and 721 (19.6%) prescriptions for >90 MME/day.

DISCUSSION AND CONCLUSION

The PRIMUM alert system helps improve patient safety. PRIMUM affected clinician decisions 17% of the time, and the effect was greater in patients with opioid overdose history and those presenting for early refills.

SCIENTIFIC SIGNIFICANCE

The effectiveness of clinical support interventions for opioid prescribing for patients with PTSD has not been documented previously. Our findings provide novel evidence that the EHR can be used to improve patient safety among patients with PTSD in the context of substance use.