Skip to main content
Morbidity and Mortality Weekly Report logoLink to Morbidity and Mortality Weekly Report
. 2019 Sep 27;68(38):819–824. doi: 10.15585/mmwr.mm6838a2

Prescription Opioid Use in Patients With and Without Systemic Lupus Erythematosus — Michigan Lupus Epidemiology and Surveillance Program, 2014–2015

Emily C Somers 1,2,3,, Jiha Lee 1, Afton L Hassett 4, Suzanna M Zick 5, Siobán D Harlow 6, Charles G Helmick 7, Kamil E Barbour 7, Caroline Gordon 8, Chad M Brummett 4, Deeba Minhas 1, Amrita Padda 1, Lu Wang 9, W Joseph McCune 1, Wendy Marder 1,3
PMCID: PMC6762189  PMID: 31557148

Rheumatic diseases are a leading cause of chronic, noncancer pain. Systemic lupus erythematosus (SLE) is a chronic autoimmune rheumatic disease characterized by periodic flares that can result in irreversible target organ damage, including end-stage renal disease. Both intermittent and chronic musculoskeletal pain, as well as fibromyalgia (considered a centralized pain disorder due to dysregulation of pain processing in the central nervous system), are common in SLE. Opioids are generally not indicated for long-term management of musculoskeletal pain or centralized pain (fibromyalgia) because of lack of efficacy, safety issues ranging from adverse medical effects to overdose, and risk for addiction (1,2). In this study of 462 patients with SLE from the population-based Michigan Lupus Epidemiology and Surveillance (MILES) Cohort and 192 frequency-matched persons without SLE, nearly one third (31%) of SLE patients were using prescription opioids during the study period (2014–2015), compared with 8% of persons without SLE (p<0.001). Among the SLE patients using opioids, 97 (68%) were using them for >1 year, and 31 (22%) were concomitantly on two or more opioid medications. Among SLE patients, those using the emergency department (ED) were approximately twice as likely to use prescription opioids (odds ratio [OR] = 2.1; 95% confidence interval [CI] = 1.3–3.6; p = 0.004). In SLE, the combined contributions of underlying disease and adverse effects of immunosuppressive and glucocorticoid therapies already put patients at higher risk for some known adverse effects attributed to long-term opioid use. Addressing the widespread and long-term use of opioid therapy in SLE will require strategies aimed at preventing opioid initiation, tapering and discontinuation of opioids among patients who are not achieving treatment goals of reduced pain and increased function, and consideration of nonopioid pain management strategies.

The MILES Cohort includes patients with SLE from the precursor MILES Surveillance Registry (3), which comprised persons with incident and prevalent SLE during 2002–2005. Briefly, the Registry source population included residents of Wayne and Washtenaw counties in southeastern Michigan, a region encompassing Detroit and Ann Arbor (population approximately 2.4 million). All MILES Registry patients still living in or near this region during the 2014–2015 recruitment and enrollment period were eligible for inclusion in the Cohort. During this period, 192 persons who did not have SLE were recruited from a random sample of households in this region and frequency-matched to SLE patients by age, sex, race, and county of residence. Males were oversampled among this group to attain roughly equivalent numbers of males in both groups. Ethics approval was obtained from the Institutional Review Boards of the University of Michigan and Michigan Department of Health and Human Services; written, informed consent was obtained from all participants.

Data were collected through structured interviews conducted during February 2014–September 2015. Self-reported data included all prescription medications currently being taken and duration of use; long-term opioid use was defined as use for >1 year. ED use was considered one or more visits to an ED within the last 12 months. Patient-reported outcome measures included fibromyalgia* (4), pain and physical function, and depression and anxiety.§ Measures specific to patients included SLE duration, disease activity (5), and SLE-related damage resulting from disease or its treatment (6).

Chi-squared tests or independent two-sample t-tests were used for comparisons between groups. Two multivariable logistic regression models were used to evaluate factors associated with opioid use in the total study population (patients and nonpatients) and in SLE patients only. In multivariable analyses, potential confounders included the following a priori-specified covariates: age, sex, race, income, education, unemployment, health insurance type, patient-reported measures (ED use, fibromyalgia, pain, physical functioning, depression, anxiety; and, for SLE patients, illness duration, activity, and damage). Stata (version 15.1; StataCorp) was used for analyses.

The study population included 462 SLE patients and 192 nonpatients. Patients were more often female, unemployed, and more frequently reported ED use, fibromyalgia, pain, poor physical function, depression, and anxiety (Table 1). Overall, 143 (31%) patients and 15 (8%) nonpatients were currently using prescription opioids (p<0.01). Among persons currently using prescription opioids, median duration (3 years) and interquartile range (IQR) (first and third quartiles) were similar among patients and nonpatients (IQR = 1 and 5 years, and 2 and 3 years, respectively; p = 0.91). Among patients using prescription opioids, 97 (68%) were on therapy for >1 year (Table 2), and 31 (22%) were using two or more opioid medications concomitantly.

TABLE 1. Sociodemographic characteristics and patient-reported outcomes in patients with systemic lupus erythematosus (SLE) and frequency matched persons without SLE — Michigan Lupus Epidemiology and Surveillance (MILES) Program, 2014–2015.

Characteristic No. (%) or mean (SD)
P-value
SLE patients (n = 462) Persons without SLE* (n = 192)
Age (yrs), mean (SD)
53.3 (12.3)
53.6 (14.0)
0.78
Sex§
Female
430 (93.1)
154 (80.2)
<0.01
Male
32 (6.9)
38 (19.8)
Race
White
233 (50.4)
107 (55.7)
0.47
Black
208 (45.0)
77 (40.1)
Other/Unspecified
21 (4.5)
8 (4.2)
Income below U.S. median
237 (51.3)
114 (59.4)
0.16
Education level
Less than high school
41 (8.9)
16 (8.3)
0.76
High school diploma/GED
46 (10.0)
26 (13.5)
Some college/Associate degree
201 (43.5)
83 (43.2)
Bachelor’s degree
88 (19.1)
37 (19.3)
Graduate/Professional degree
85 (18.4)
30 (15.6)
Unemployed
176 (38.1)
55 (28.6)
0.02
Insurance
Private/Other
206 (44.6)
96 (50.0)
0.20
Medicaid/Medicare
246 (53.2)
89 (46.4)
Uninsured
10 (2.2)
7 (3.6)
Emergency department use
213 (46.1)
56 (29.2)
<0.01
Fibromyalgia
190 (41.1)
25 (13.0)
<0.01
Pain score,**,†† mean (SD)
48.2 (27.0)
28.4 (27.8)
<0.01
Physical function score,**,†† mean (SD)
43.8 (30.2)
24.7 (27.9)
<0.01
Depression score,†† mean (SD)
51.8 (9.9)
49.0 (9.1)
<0.01
Anxiety score,†† mean (SD)
52.4 (10.1)
49.5 (9.2)
<0.01
Prescription opioid use
Prescription opioid use (current)
143 (31.0)
15 (7.8)
<0.01
Duration opioid use (years; median, IQR)§§
3 (1, 5)
3 (2, 3)
0.91
Concomitant use of ≥2 opioids§§
31 (21.7)
0 (0)
0.04
SLE-specific measures
SLE duration, years (median, IQR)
19.0 (14.0, 26.0)
NA
NA
SLE activity score (mean, SD)††
12.9 (8.1)
NA
NA
SLE damage score (median, IQR)†† 5.0 (3.0, 8.0) NA NA

Abbreviations: GED = General Educational Development certificate; IQR = interquartile range (25th percentile, 75th percentile); NA = not applicable; SD = standard deviation.

* Persons without SLE were frequency matched by age, sex, race, and county.

P-values calculated by Pearson's chi-squared test (categorical data) or two-sample t-test (continuous data).

§ Males were oversampled in persons without SLE to have roughly equivalent numbers of males in both groups.

Considered unemployed if aged <65 years, not working over last 12 months, and not in school.

** For both the pain and physical function measures, scores were reversed from their original RAND Medical Outcomes Study 36-item Short-Form-Survey instrument values so that higher scores represent worse pain and physical functioning, respectively.

†† Higher score is worse.

§§ Among persons with current prescription opioid use.

TABLE 2. Characteristics of persons reporting current prescription opioid use — Michigan Lupus Epidemiology and Surveillance (MILES) Program, 2014–2015.

Factor No. (%) of prescription opioid users
SLE patients (n = 143) Nonpatients (n = 15)
Opioid use ≥1 year
Yes
97 (67.8)
12 (80.0)
No
46 (32.2)
3 (20.0)
Age group (yrs)
18–44
36 (25.2)
1 (6.7)
45–64
82 (57.3)
10 (66.7)
≥65
25 (17.5)
4 (26.7)
Sex
Female
135 (94.4)
12 (80.0)
Male
8 (5.6)
3 (20.0)
Race
White
59 (41.3)
6 (40.0)
Black
76 (53.2)
8 (53.3)
Other/unknown
8 (5.6)
1 (6.7)
Income
Income <U.S. median
96 (67.1)
13 (86.7)
Income ≥U.S. median
37 (25.9)
2 (13.3)
Education
Less than high school
22 (15.4)
3 (20.0)
High school diploma/GED
17 (11.9)
5 (33.3)
Some college/Associate degree
76 (53.2)
4 (26.7)
Bachelor’s degree
14 (9.8)
3 (20.0)
Graduate/Professional degree
14 (9.8)
0 (0.0)
Employment
Unemployed
81 (56.6)
9 (60.0)
Employed and/or in school
62 (43.4)
6 (40.0)
Insurance
Private/Other
37 (25.9)
3 (20.0)
Medicaid/Medicare
105 (73.4)
12 (80.0)
None
1 (0.7)
0 (0.0)
Patient-reported outcomes
Emergency department use
Yes (in last 12 months)
96 (67.1)
9 (60.0)
No
45 (31.5)
6 (40.0)
Fibromyalgia
Yes
89 (62.2)
10 (66.7)
No
54 (37.8)
5 (33.3)
Pain score*,†
<70
60 (42.0)
6 (40.0)
≥70
83 (58.0)
9 (60.0)
Physical function score*,†
<70
73 (51.1)
12 (80.0)
≥70
70 (49.0)
3 (20.0)
Depression score†,§
<56.2
74 (51.8)
8 (53.3)
≥56.2
67 (46.9)
7 (46.7)
Anxiety score†,§
<62.3
99 (69.2)
13 (86.7)
≥62.3
42 (29.4)
2 (13.3)
SLE-specific measures
SLE duration
<15 yrs
29 (20.3)
NA
≥15 yrs
113 (79.0)
NA
SLE activity score
SLAQ <12
37 (25.9)
NA
SLAQ ≥12
106 (74.1)
NA
SLE damage score
LDIQ <5
41 (28.7)
NA
LDIQ ≥5 102 (71.3) NA

Abbreviations: GED = General Educational Development certificate; LDIQ = lupus damage index questionnaire; NA = not applicable; SLAQ = systemic lupus activity questionnaire; SLE = systemic lupus erythematosus.

* For both the pain and physical function measures, scores were reversed from their original RAND Medical Outcomes Study 36-item Short-Form-Survey instrument values so that higher scores represent worse pain and physical functioning, respectively. Cut-points reflect 2 standard deviations from the mean.

Higher score is worse.

§ Patient-Reported Outcomes Measurement Information System depression and anxiety score cut-points were based on PROsetta Stone mapping to the Center for Epidemiologic Studies Depression and Generalized Anxiety Disorder 7-item scales, respectively.

Within the total study population, the odds of opioid use among SLE patients were 3 times higher than for nonpatients (OR = 3.4, 95% CI = 1.7–6.6; p <0.001) after accounting for demographic, psychosocial, and clinical factors (Table 3). In analyses of both the total study population and SLE patients only, prescription opioid use was twice as likely among persons who had at least one ED visit in the last 12 months (total population: OR = 2.2, 95% CI 1.4–3.6), SLE patients only: OR = 2.1, 95% CI = 1.3–3.6). Pain and reduced physical functioning were also significantly associated with opioid use when assessing the total population and SLE patients only; for each one standard deviation increase (worsening) in pain and physical function scores, the odds of opioid use were approximately 35% and 12% higher, respectively.

TABLE 3. Factors associated with prescription opioid use, based on separate multivariable logistic regression models* for the total study population and systemic lupus erythematosus (SLE) patients only — Michigan Lupus Epidemiology and Surveillance (MILES) Program, 2014–2015.

Characteristic Total study population (n = 654)
SLE patients only (n = 462)
Prescription opioid use prevalence OR (95% CI) p-value Prescription opioid use prevalence OR (95% CI) p-value
Patient status
Nonpatient
7.8%
referent
NA
NA
NA
NA
SLE
31.0%
3.36 (1.72–6.57)
<0.001
NA
NA
NA
Age (yrs)
NA
1.00 (0.98–1.02)
NS
NA
0.99 (0.96–1.01)
NS
Sex
Male
15.7%
referent
NA
25.0%
referent
NA
Female
25.2%
0.80 (0.35–1.86)
NS
31.4%
0.78 (0.28–2.17)
NS
Race
White
19.1%
referent
NA
25.3%
NA
NA
Black
29.5%
1.01 (0.62–1.66)
NS
36.5%
1.03 (0.60–1.76)
NS
Other/Unknown
31.0%
1.14 (0.35–3.70)
NS
38.1%
1.10 (0.30–4.07)
NS
Income
>U.S. median
14.6%
referent
NA
18.7%
referent
NA
≤U.S. median
31.1%
1.21 (0.68–2.14)
NS
40.5%
1.14 (0.62–2.11)
NS
Education (yrs)
NA
0.93 (0.84–1.02)
NS
NA
0.92 (0.83–1.02)
NS
Employment
Employed and/or in school
16.1%
referent
NA
21.7%
referent
NA
Unemployed
39.0%
1.32 (0.82–2.11)
NS
46.0%
1.21 (0.72–2.03)
NS
Insurance
Private
13.3%
referent
NA
18.0%
referent
NA
Medicaid/Medicare
34.9%
1.45 (0.82–2.56)
NS
42.7%
1.60 (0.85–3.00)
NS
None
5.9%
0.39 (0.03–4.27)
NS
10.0%
0.43 (0.04–4.79)
NS
Patient-reported outcomes
Emergency department use
No visits
13.4%
referent
NA
18.3%
referent
NA
≥1 visit last 12 mos
39.0%
2.22 (1.39–3.55)
0.001
45.1%
2.14 (1.27–3.59)
0.004
Fibromyalgia
No
13.4%
referent
NA
19.9%
referent
NA
Yes
46.1%
1.50 (0.89–2.54)
NS
46.8%
1.18 (0.64–2.16)
NS
Pain score †,§
NA
1.35 (1.19–1.53)
<0.001
NA
1.36 (1.18–1.58)
<0.001
Physical function score†,§
NA
1.11 (1.00–1.24)
0.047
NA
1.13 (1.00–1.27)
0.042
Depression score§
NA
1.01 (0.97–1.05)
NS
NA
1.01 (0.97–1.05)
NS
Anxiety score§
NA
0.97 (0.94–1.01)
NS
NA
0.98 (0.94–1.02)
NS
SLE-specific measures
SLE duration (years)
NA
NA
NA
NA
1.02 (0.99–1.05)
NS
Activity (SLAQ score) §
NA
NA
NA
NA
1.01 (0.96–1.06)
NS
Damage (LDIQ score) § NA NA NA NA 0.98 (0.92–1.05) NS

Abbreviations: CI = confidence interval; LDIQ = lupus damage index questionnaire; NA = not applicable; NS = not significant; OR = odds ratio; SLAQ = systemic lupus activity questionnaire; SLE = systemic lupus erythematosus.

* Each multivariable model includes all listed factors (i.e., odds ratios are adjusted for all other variables listed in the table): SLE versus nonpatient status (for total population model), age, sex, race, income, education, employment, health insurance, emergency department use, fibromyalgia, pain score, physical function score, depression score, and anxiety score. The SLE patient only model also included SLE duration, SLE activity score, and SLE damage score.

For both the pain and physical function measures, scores were reversed from their original RAND Medical Outcomes Study 36-item Short-Form-Survey instrument values so that higher scores represent worse pain and physical functioning, respectively. For the regression models, the (reversed) pain and physical function scores were scaled by their standard deviations of 10; therefore, each unit change represents one standard deviation change.

§ Higher score is worse.

Discussion

In this study documenting the extent of prescription opioid use in patients with SLE, nearly one third of SLE patients in a well-characterized cohort used prescription opioids during 2014–2015, compared with 8% of frequency-matched persons without SLE. Approximately 70% of the SLE patients taking prescription opioids were on opioid therapy for >1 year. The higher odds of prescription opioid use among patients persisted after accounting for several factors in multivariable models. ED use in the last 12 months was associated with opioid use in both the total population and among SLE patients.

The widespread and long-term use of prescription opioids among this cohort of patients with SLE was striking given lack of evidence regarding safety and efficacy of opioids for treating chronic pain associated with rheumatic disease (1,7). Particularly concerning is that some of the less appreciated medical risks associated with long-term opioid use, such as myocardial infarction, immunosuppression, and osteoporosis (8), are potentially compounded in persons with SLE, whose baseline risks for these comorbidities are elevated because of the underlying disease and adverse effects of immunosuppressive and glucocorticoid therapies. Further, recent preliminary data suggest that opioids are associated with increased mortality in lupus.

Whereas rheumatic diseases are a leading cause of chronic, noncancer pain (7), data on opioid use and associated outcomes in persons with rheumatic diseases are limited. One recent study of Medicare beneficiaries with rheumatoid arthritis estimated regular opioid use (three or more filled prescriptions or one or more filled 90-day prescription per calendar year) at approximately 40% (9). Together with the findings from this analysis, the prevalent use of opioids in at least two patient populations with rheumatic diseases supports the need for better understanding of prescribing patterns, risk factors associated with opioid initiation and long-term continuation, and pharmacoepidemiology related to adverse medical effects of opioids in these patients. Effective interventions in this population will need to couple tailored approaches for tapering and discontinuing opioids when indicated, along with prevention of opioid initiation and consideration of nonopioid pain management strategies.

Interventions to address opioid use in patients with rheumatic diseases will require a better understanding of pain management for patients with these complex, chronic conditions, whose sources of pain might be multiple, persistent, and severe, and which must be accurately diagnosed to be appropriately treated. Sources of SLE-related pain can include active inflammatory disease resulting in peripheral pain (e.g., arthritis), damage accrual attributable to the disease or its treatment (e.g., steroid-induced osteonecrosis or vertebral fractures), or centralized pain disorders, such as fibromyalgia, the prevalence of which is higher in patients with SLE than in the general population (4).

The findings in this report are subject to at least five limitations. First, prescription data were self-reported, which limited the ability to examine sources of opioid prescribing or dosing patterns in more detail and could have been subject to underreporting attributable to social desirability bias. Second, since the original SLE registry reflected the demographics of southeastern Michigan (which is predominantly black and white), Asians, Hispanics, and other groups were not well represented, and results might not be generalizable to the wider SLE population. Third, this report addresses prescription opioid use, but information on other potential opioid sources is unavailable. Fourth, these data reflect 2014–2015; trends in opioid prescribing and usage might have changed since then. Finally, the cross-sectional nature of this analysis precludes assessing temporal relationships for factors associated with prescription opioid use. Strengths of this study include starting from a population-based SLE registry, inclusion of relatively large numbers of well-defined patients with SLE, comparing to age-, sex-, race-, and county-matched persons without SLE, and use of validated patient-reported outcome measures to assess psychosocial and lupus-specific factors in relation to prescription opioid use.

In conclusion, during 2014–2015, one third of patients in a SLE cohort in southeastern Michigan were using prescription opioids, most for longer than 1 year. Given the risks for opioid therapy and the lack of pain efficacy data in SLE, it is important that clinicians managing SLE, including providers in EDs, be aware of the potential adverse effects of opioid therapy in these patients, consider nonopioid pain management strategies, and be familiar with guidance for opioid tapering or discontinuation when patients are not achieving treatment goals of reduced pain and increased function or when otherwise indicated (2).

Summary.

What is already known about this topic?

Opioids are generally not indicated for pain in systemic lupus erythematosus (SLE) and other rheumatic diseases because of limited efficacy and risks for addiction and adverse health effects.

What is added by this report?

Nearly one third of patients with SLE in an established Michigan cohort used prescription opioids, with approximately two thirds of those using for >1 year. Emergency department use was associated with increased prescription opioid use.

What are the implications for public health practice?

Risks for long-term opioid therapy, including osteoporosis and cardiovascular disease, are concerning in SLE patients given their increased underlying risks for these comorbidities. Strategies for reducing opioid use are needed in rheumatic disease populations. Clinicians managing SLE, including providers in emergency departments, need to be aware of these risks and consider nonopioid pain management strategies.

Acknowledgment

Michigan Department of Health and Human Services.

All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Afton Hassett reports personal fees from AbbVie outside the submitted work. Siobán Harlow reports personal fees from American Reagent, outside the submitted work. Chad Brummett serves on the advisory board for Recro Pharma Inc. and Heron Therapeutics, and receives grants from the Michigan Department of Health and Human Services (Sub K Michigan OPEN), NIDA (Centralized Pain Opioid Non-Responsiveness R01 DA038261-05), the University of Michigan Genomics Initiative, during the conduct of the study. In addition, Dr. Brummett has a patent for Peripheral Perineural Dexmedetomidine (no royalties) Application number 12/791,506; Issue Date 4/2/13; licensed. No other potential conflicts of interest were disclosed.

Footnotes

*

Based on survey criteria for fibromyalgia.

Based on RAND Medical Outcomes Study Short-Form-Survey instrument subscales, with reversed scores so that higher scores represent worse states. https://www.rand.org/health-care/surveys_tools/mos/36-item-short-form.html.

§

Based on National Institutes of Health Patient-Reported Outcomes Measurement Information System short forms 8b (depression) and 8a (emotional distress-anxiety). http://www.healthmeasures.net/explore-measurement-systems/promis.

References

  • 1.Chou R, Turner JA, Devine EB, et al. The effectiveness and risks of long-term opioid therapy for chronic pain: a systematic review for a National Institutes of Health Pathways to Prevention Workshop. Ann Intern Med 2015;162:276–86. 10.7326/M14-2559 [DOI] [PubMed] [Google Scholar]
  • 2.Dowell D, Haegerich TM, Chou R. CDC guideline for prescribing opioids for chronic pain—United States, 2016. MMWR Recomm Rep 2016;65(No. RR-1). 10.15585/mmwr.rr6501e1 [DOI] [PubMed] [Google Scholar]
  • 3.Somers EC, Marder W, Cagnoli P, et al. Population-based incidence and prevalence of systemic lupus erythematosus: the Michigan Lupus Epidemiology and Surveillance Program. Arthritis Rheumatol 2014;66:369–78. 10.1002/art.38238 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 4.Wolfe F, Clauw DJ, Fitzcharles M-A, et al. Fibromyalgia criteria and severity scales for clinical and epidemiological studies: a modification of the ACR Preliminary Diagnostic Criteria for Fibromyalgia. J Rheumatol 2011;38:1113–22. 10.3899/jrheum.100594 [DOI] [PubMed] [Google Scholar]
  • 5.Karlson EW, Daltroy LH, Rivest C, et al. Validation of a Systemic Lupus Activity Questionnaire (SLAQ) for population studies. Lupus 2003;12:280–6. 10.1191/0961203303lu332oa [DOI] [PubMed] [Google Scholar]
  • 6.Costenbader KH, Khamashta M, Ruiz-Garcia S, et al. Development and initial validation of a self-assessed lupus organ damage instrument. Arthritis Care Res (Hoboken) 2010;62:559–68. 10.1002/acr.20193 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 7.Lang LJ, Pierer M, Stein C, Baerwald C. Opioids in rheumatic diseases. Ann N Y Acad Sci 2010;1193:111–6. 10.1111/j.1749-6632.2009.05343.x [DOI] [PubMed] [Google Scholar]
  • 8.Baldini A, Von Korff M, Lin EH. A review of potential adverse effects of long-term opioid therapy: a practitioner’s guide. Prim Care Companion CNS Disord 2012;14:14. 10.4088/PCC.11m01326 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 9.Curtis JR, Xie F, Smith C, et al. Changing trends in opioid use among patients with rheumatoid arthritis in the United States. Arthritis Rheumatol 2017;69:1733–40. 10.1002/art.40152 [DOI] [PubMed] [Google Scholar]

Articles from Morbidity and Mortality Weekly Report are provided here courtesy of Centers for Disease Control and Prevention

RESOURCES