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Table 5 Sub-group differences in outcome of intervention

From: Testimony at court: a randomised controlled trial investigating the art and science of persuading witnesses and victims to attend trial

Sub group descriptor

Control group mean: % attendance at one or more hearings

Treatment group mean: % attendance at one or more hearings

p-value (regression coefficient)

Total number of sub-group cases, number in treatment/control groups

Victims only

78.2

81.0

0.194

N = 1507

Treatment = 813

Control = 694

Witnesses only

84.3

84.9

0.826

N = 1009

Treatment = 532

Control = 477

Domestic violence only

74.8

78.0

0.261

N = 1232

Treatment = 667

Control = 565

Non-domestic violence only

86.4

87.1

0.774

N = 1284

Treatment = 678

Control = 606

Domestic violence victims only

72.1

74.8

0.38

N = 854 Treatment = 466

Control = 388