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Table 1 Program and client characteristics reported as count (percentage) or mean (standard deviation)

From: Identifying and reducing disparities in successful addiction treatment completion: testing the role of Medicaid payment acceptance

  Wave 1 (2011) Wave 2 (2013)  
(N = 7305) (N = 8107)
White Mexican American White Mexican American p a
Client variables (n = 4050) (n = 3255) (n = 4232) (n = 3875)  
Treatment completion, n (%)* 749 (18.5) 695 (21.4) 483 (11.5) 589 (15.5) < .001
Female, n (%)* 1529 (37.8) 1147 (35.3) 1666 (39.4) 1384 (36.0) .166
Age, M (SD) 38.1 (12.9) 34.4 (11.7) 38.8 (13.1) 34.9 (12.3) .011
Education, n (%)*      < .001
 Less than high school 150 (3.7) 284 (8.7) 121 (2.9) 299 (7.8)  
 High school 2647 (65.4) 2612 (80.3) 680 (16.1) 1676 (43.5)  
 College 1174 (29.0) 347 (10.7) 2077 (49.1) 1497 (38.8)  
 Postgraduate 79 (2.0) 12 (0.4) 1354 (32.0) 385 (10.0)  
Primary drug, n (%)*      < .001
 Heroin 1251 (30.9) 652 (20.0) 1337 (31.6) 886 (23.0)  
 Alcohol 1144 (28.3) 678 (20.8) 1157 (27.3) 653 (16.39)  
 Methamphetamine 737 (18.2) 1111 (34.1) 918 (21.7) 1401 (36.3)  
 Marijuana or hashish 288 (7.1) 478 (14.7) 213 (5.0) 635 (16.5)  
 Other 630 (15.6) 336 (10.3) 607 (14.3) 282 (7.3)  
Days used, M (SD)*b 16.0 (13.0) 11.1 (12.8) 18.1 (12.8) 12.5 (13.1) < .001
Age at first use, M (SD)* 20.7 (8.8) 19.3 (7.4) 20.6 (8.6) 19.1 (7.2) .107
Medicaid eligible, n (%)* 988 (24.4) 997 (30.6) 591 (14.0) 1186 (30.8) < .001
Mental health disorder, n (%)* 1380 (34.1) 612 (18.8) 1754 (41.5) 741 (19.2) < .001
Treatment type      < .001
 Outpatient 1635 (40.4) 1983 (60.9) 1257 (29.7) 2011 (52.1)  
 Methadone 162 (4.0) 159 (4.9) 226 (5.3) 301 (7.8)  
 Residential 2253 (55.6) 1113 (34.2) 2749 (65.0) 1545 (40.1)  
Program variables (n = 122)   (n = 112)   
Medicaid payment, n (%) 85 (70.8)   65 (62.5)   < .001
Licensed, n (%) 115 (85.0)   98 (95.1)   < .001
Accredited, n (%)c 20 (16.8)   25 (24.5)   < .001
  1. Note: Percentages calculated after removing missing values
  2. *Difference between ethnic groups within wave is statistically significant at p < .051
  3. aIndicates statistical significance between waves
  4. bDuring 30 days prior to admission
  5. cAccreditation by the Joint Commission