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Table 4 Demographic characteristics of patients that declined participation and patients that scheduled baseline appointment

From: An implementation-focused process evaluation of an incentive intervention effectiveness trial in substance use disorders clinics at two Veterans Health Administration medical centers

Characteristic Declined participation Scheduled
  N = 182 (33.03%) N = 369 (66.97%)
Male 178 (97.80%) 361 (97.83%)
Female 4 (2.20%) 8 (2.17%)
African American 34 (18.68%) 136 (36.68%)
White 124 (68.13%) 194 (52.57%)
Other non-white 4 (2.20%) 10 (2.71%)
Age in years, median 52.5 50
Psychiatric Diagnoses   
  Depression 59 (32.42%) 131 (35.50%)
  PTSD 29 (15.93%) 46 (12.47%)
  Other anxiety, mood, or psychotic diagnosis 37 (20.33%) 53 (14.36%)
Substance Dependence Diagnoses   
  Alcohol Dependence 172 (94.51%) 307 (83.20%)
  Stimulant Dependence 32 (17.58%) 156 (42.28%)
  Other Substance Dependence 18 (9.90%) 33 (8.94%)