Table 1.

Patient sociodemographic and clinical characteristics by opioid medication use in the last 6 months.

Opioid Medication Use
No, n = 249Yes, n = 100P*
Age, yrs, mean (SD)64.8 (8.3)62.5 (8.1)0.02
Female sex, n (%)180 (72.6)69 (69.0)0.50
Race, n (%)0.65
   White171 (68.7)67 (67.0)
   Black or African American16 (6.4)9 (9.0)
   American Indian or Alaska Native8 (3.2)2 (2.0)
   Other38 (15.3)11 (11.0)
   Missing/refused to answer16 (6.4)11 (11.0)
Hispanic ethnicity, n (%)84 (33.7)37 (37.0)0.56
Education, n (%)0.01
   ≤ High school diploma15 (6.0)14 (14.0)
   High school/GED73 (29.3)34 (34.0)
   Associate’s degree or higher127 (51.0)34 (34.0)
   Other31 (12.5)18 (18.0)
   Missing/refused to answer3 (1.2)0 (0.0)
Employment, n (%)< 0.001
   Full-time52 (21.1)12 (12.0)
   Part-time17 (6.8)11 (11.0)
   Unemployed16 (6.4)7 (7.0)
   Disabled40 (16.1)34 (34.0)
   Retired122 (49.0)28 (28.0)
   Missing/refused to answer2 (0.8)8 (8.0)
Married, n (%)120 (48.4)36 (36.7)0.06
Annual income, US$, n (%)0.001
   < 20,00071 (28.5)52 (52.0)
   20,000–39,99937 (14.9)15 (15.0)
   ≥ 40,000113 (45.4)25 (25.0)
   Missing/refused to answer/unknown26 (11.2)8 (8.0)
Insurance, n (%)
   Medicaid37 (14.9)33 (33.0)0.003
   Medicare134 (53.8)53 (53.0)0.25
   Medigap50 (20.1)18 (18.0)0.45
   Private63 (25.3)19 (19.0)0.17
   HMO27 (10.8)7 (7.0)0.21
   Other40 (16.1)16 (16.0)0.08
Overall QOL, n (%)< 0.001
   Excellent33 (13.3)7 (7.0)
   Very good101 (40.6)27 (27.0)
   Good66 (26.5)27 (27.0)
   Fair34 (13.7)31 (31.0)
   Poor15 (6.0)7 (7.0)
PHQ-8, mean (SD)4.9 (5.3)7.2 (5.6)0.002
Confidence filling medical forms, n (%)0.32
   Extremely, quite a bit212 (85.1)86 (86.0)
   Somewhat, a little bit, or not at all34 (13.6)14 (14.0)
Comorbidity score, mean (SD)3.2 (1.8)4.1 (1.9)< 0.001
WOMAC pain, mean (SD)46.8 (21.1)54.8 (20.3)0.002
WOMAC disability, mean (SD)44.9 (21.5)56.6 (19.4)< 0.001
  • * Fisher exact or chi-square test for categorical variables, and t test for continuous variables. GED: General Education Development; HMO: health maintenance organization; PHQ-8: Patient Health Questionnaire-8; QOL; quality of life; WOMAC: Western Ontario and McMaster Universities Arthritis Index.