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Table 2 Outcome analyses of AUDIT scores: proportions of probable dependence; harmful use, hazardous use, non-risky use, trajectories (no change, impaired, improved), total and subscale ratings

From: Automated telephone interventions for problematic alcohol use in clinical and population samples: a randomized controlled trial

  Intervention groups (n = 59) Control group (n = 29)
Total (n = 59) Brief (n = 26) Extensive (n = 33)
AUDIT, probable dependence (%)
 Baseline 33 (56) 15 (58) 18 (55) 16 (55)
 Follow-up 11 (19) 5 (19) 6 (18) 6 (21)
AUDIT, harmful use (%)
 Baseline 12 (20) 7 (27) 5 (15) 8 (28)
 Follow-up 7 (12) 3 (12) 4 (12) 6 (21)
AUDIT, hazardous use (%)
 Baseline 14 (24) 4 (15) 10 (30) 5 (17)
 Follow-up 26 (44) 14 (54) 12 (36) 11 (37)
AUDIT, non-risky use (%)
 Baseline 0 (0) 0 (0) 0 (0) 0 (0)
 Follow-up 15 (25) 4 (15) 11 (34) 6 (21)
AUDIT, trajectories (%)
 No change 19 (32) 9 (35) 10 (30) 10 (34)
 Impaired 1 (2) 1 (4) 0 (0) 2 (7)
 Improved 39 (66) 16 (61) 23 (70) 17 (59)
AUDIT, total score, mean (SD)
 Baseline 20.8 (5.9) 21.3 (5.8) 20.3 (6.1) 20.2 (4.6)
 Follow-up 12.5 (8.5) 14.1 (7.3) 11.2 (9.3) 13.7 (8.3)
 Change score − 8.3 (7.7) − 7.2 (8.1) − 9.1 (7.4) − 6.5 (9.3)
 ANCOVA, b (95% CI)
  Intervention vs. control − 1.5 (− 5.1; 2.0) − 1.6 (− 4.4; 4.1) − 2.6 (− 6.8; 1.6)  
  Extensive vs. brief    − 2.2 (− 6.2; 1.8)  
AUDIT-C score, mean (SD)
 Baseline 8.5 (2.0) 8.7 (1.9) 8.3 (2.0) 8.7 (1.8)
 Follow-up 5.1 (3.3) 5.5 (2.8) 4.8 (3.6) 6.2 (3.5)
 Change score − 3.4 (3.4) − 3.1 (3.0) − 3.6 (3.6) − 2.5 (3.5)
 ANCOVA, b (95% CI)
  Intervention vs. control − 1.0 (− 2.5; 0.5) − 0.6 (− 2.3; 1.1) − 1.3 (− 3.0; 0.5)  
  Extensive vs. brief    − 0.6 (− 2.3; 1.0)  
Alcohol problem scale, mean (SD)
 Baseline 12.3 (4.5) 12.7 (4.4) 12.0 (4.7) 11.5 (3.6)
 Follow-up 7.4 (5.7) 8.6 (5.3) 6.5 (5.9) 7.6 (5.3)
 Change score − 4.9 (5.1) − 4.1 (5.8) − 5.6 (4.4) − 4.0 (6.0)
 ANCOVA, b (95% CI)
  Intervention vs. control − 0.6 (− 1.7; 2.9) − 0.7 (− 3.6; 2.2) − 1.4 (4.0; 1.2)  
  Extensive vs. brief    − 1.7 (− 4.2; 0.9)  
  1. No significant results were identified