Table 1

Comparison of comparison and study groups

CHARACTERISTICSCHRONIC OXYCODONE USERS (N = 103)COMPARISON GROUP (N = 104)P VALUE
Mean (SD) age, y52.3 (13.1)51.9 (16.7)> .05
Sex, %> .05
  • Male53.951.5
  • Female46.148.5
Mean (SD) no. visits in 5-y period39.0 (19.0)12.8 (13.6)< .001
Mean (SD) no. of health problems6.3 (3.9)3.1 (2.5)< .001
Proportion of patients with past or present
  • Alcohol or drug abuse24.84.9< .001
  • Smoking67.645.6< .003
  • Psychiatric illness31.314.6< .006