• J Opioid Manag · Jul 2015

    Impact of constipation on opioid therapy management among long-term opioid users, based on a patient survey.

    • Shaloo Gupta, Haridarshan Patel, Justin Scopel, and Reema R Mody.
    • Health Outcomes Practice, Kantar Health, Princeton, New Jersey.
    • J Opioid Manag. 2015 Jul 1;11(4):325-38.

    ObjectiveThe authors sought to characterize health-related quality of life (HRQoL), medication adherence, productivity losses, and treatment satisfaction associated with modifications to opioid therapy due to opioid-induced constipation (OIC).DesignA cross-sectional, between-subjects design was used to examine health outcomes among US noncancer participants currently taking opioids.Patients, ParticipantsParticipants were adults in the 2012 US National Health and Wellness Survey, who reported currently using opioids (> 30 days) and experiencing constipation. Respondents were categorized as making modifications to opioid therapy due to OIC (modifiers, n = 244) or making no modifications (nonmodifiers, n = 247).Main Outcome MeasuresPatient Assessment of Constipation Quality of Life (PAC-QoL) and Symptoms (PAC-Sym), Morisky Medication Adherence Scale (MMAS-4), Work Productivity and Activity Impairment, and the Treatment Satisfaction Questionnaire for Medication (TSQM II) for OIC treatment were administered. Generalized linear models were adjusted to control for baseline characteristics (age, gender, comorbidities, opioid strength, etc).ResultsModifiers reported poorer HRQoL (PAC-QoL total: 1.74 vs 1.44, p < 0.001), worse constipation (PAC-Sym total: 1.56 vs 1.35, p = 0.003), more pain-related resource use (surgery: odds ratio (OR) = 3.72, p = 0.002; emergency room visits: OR = 1.88, p = 0.049; hospitalizations: OR = 2.47, p = 0.033), and lower adherence (MMAS-4 pain: OR = 0.12, p < 0.001; MMAS-4 OIC: OR = 0.39, p < 0.001) than nonmodifiers. Modifiers reported greater presenteeism (49.75 percent vs 38.28 percent, p = 0.038), but no significant differences were found for activity impairment or OIC treatment satisfaction.ConclusionsTreating OIC effectively may help prevent inadequate pain management secondary to opioid therapy modification, help increase HRQoL, lessen OIC symptoms, decrease productivity loss, and improve adherence to opioid and OIC treatments.

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