Research Article

Risk Assessment of Opioid Misuse in Italian Patients with Chronic Noncancer Pain

Table 1

Patients characteristics: demographic, clinical, and psychological variables in the total group and for high and low risk in PMQ and DIRE.

VariablesTotal sample PMQ scoring group value1 DIRE scoring group value2
L-PMQaH-PMQbSuit-DIREcNotSuit-DIREd

Age (years)
 Mean (SD)51.5 (11.7)52.7 (10.8)53.6 (12.5)52.1 (11.3)50.3 (12.1)
Gender (%)
 Female57 (76)34 (82.9)13 (72.2)50 (78.1)7 (63.6)
 Male18 (24)7 (17.1)5 (27.8)14 (21.9)4 (27.3)
Marital status (%)
 Married56 (74.6)33 (80.5)15 (83.3)47 (73.4)9 (81.8)
 Single11 (15.3)5 (12.2)2 (11.1)9 (14.1)2 (18.2)
 Separated/divorced7 (9.3)3 (7.3)1 (5.6)7 (10.9)0 (0)
 Widowed1 (1.3)0 (0.0)0 (0.0)1 (1.6)0 (0)
Education (years) (%)
 59 (12)6 (14.6)3 (16.7)8 (12.5)1 (9.1)
 826 (34.6)14 (34.2)7 (38.9)22 (34.4)4 (36.4)
 8–1336 (48)19 (46.3)7 (38.9)31 (48.4)5 (45.4)
134 (5.4)2 (4.9)1 (5.6)3 (4.7)1 (9.1)
Employment status (%)
 Employed28 (37.3)16 (39.0)6 (33.3)24 (37.5)4 (36.4)
 Unemployed2 (2.7)0 (0.0)2 (11.1)2 (3.1)0 (0)
 Housewife22 (29.3)13 (31.7)5 (27.8)17 (26.6)5 (45.4)
 Retired23 (30.7)12 (29.3)5 (27.8)21 (32.8)2 (18.2)
Type of pain (%)
 Nociceptive43 (57.3)22 (53.6)10 (55.6)36 (56.2)7 (631.6)
 Neurophatic9 (12)7 (17.1)2 (11.1)9 (14.1)1 (9.1)
 Mixed23 (30.7)12 (29.3)6 (33.3)19 (29.7)3 (27.3)
Duration of pain (months)
 Mean (SD)125.9 (105.9)138.9 (107.7)106.3 (93.7)128.4 (99.1)118.7 (121.0)
Psychological variables
 STAI Y2
  Mean (SD)50.6 (9.3)46.7 (6.9)56.5 (10.4)<0.0149.6 (8.4)55.9 (11.9)<0.05
 BDI-2 total
  Mean (SD)21 (10.7)16.5 (8.6)28.0 (11.5)<0.0119.2 (9.2)30.5 (13.6)<0.05
 PRSS catastrophe
  Mean (SD)3.0 (1.1)2.6 (1.1)3.8 (0.7)<0.012.9 (1.1)3.6 (0.9)
 MMPI hypochondriasis*
  Mean (SD)17.2 (5.2)15.3 (3.9)20.2 (4.7)<0.0116.9 (5.5)19.1 (4.4)
 MMPI depression*
  Mean (SD)29.8 (5.4)28.2 (4.7)32.0 (6.1)<0.0129.2 (5.1)32.7 (6.0)
 MMPI hysteria*
  Mean (SD)31.6 (4.8)30.4 (4.4)32.9 (4.8)19.6 (5.1)32.7 (6.0)
 MMPI psychopathic D*
  Mean (SD)*20.3 (5.3)18.7 (5.1)23.3 (4.8)<0.0119.6 (5.1)24.0 (4.6)
 MMPI-mascul./feminin.*
  Mean (SD)*31.4 (4.6)30.3 (4.2)31.7 (4.5)30.5 (4.1)31.6 (4.0)
 MMPI Paranoia*
  Mean (SD)11.8 (3.4)10.3 (2.2)14.3 (2.7)<0.0111.2 (3.0)14.8 (3.9)
 MMPI psychasthenia*
  Mean (SD)20.7 (8.3)18.1 (8.6)23.8 (7.1)<0.0119.1 (7.8)27.0 (7.8)
 MMPI Schizophrenia*
  Mean (SD)20.8 (10.4)17.3 (9.7)25.8 (10.5)<0.0118.8 (9.7)29.5 (9.6)<0.01
 MMPI Hypomania*
  Mean (SD)18.5 (4.3)17.8 (4.4)19.4 (4.2)18.5 (4.3)18.6 (3.2)
 MMPI social introver.*
  Mean (SD)32.6 (7.2)32.6 (6.3)33.5 (8.7)31.3 (6.3)39.5 (7.6)

aL-PMQ group, (PMQ total score <25); bH-PMQ group, (PMQ total score ≥30).
cSuitable-DIRE group, (DIRE total score ≥14). dNot suitable-DIRE group, (DIRE total score ≤13).
*Row total scores (no -correction).
value: significant differences in mean scores between PMQ scoring groups ( value1) and between DIRE scoring groups ( value2).