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Table 4 Comparisons between self-report HCV status groups for unweighted and weighted BBV-TRAQ total and injecting subscales scores

From: Quantifying hepatitis C transmission risk using a new weighted scoring system for the Blood-Borne Virus Transmission Risk Assessment Questionnaire (BBV-TRAQ): Applications for community-based HCV surveillance, education and prevention

Weights BBV-TRAQ Score F p-value mean difference (HCV positive & negative) 95% CI of the difference
None Injecting subscale 2.46 .141 3 -1 – 7
  Total 0.76 .997 2 -4 – 8
Log one Injecting subscale 3.04 .080 15 -1 – 31
  Total 1.98 .250 14 -5 – 32
Log two Injecting subscale 3.63 .038 40 2 – 79
  Total 2.97 .078 39 -3 – 80
Log five Injecting subscale 4.12 .017 1,293 176 – 2,411
  Total 3.86 .023 1,273 132 – 2,414
  1. * Comparisons were made between all HCV groups (i.e., inclusive of 'never tested/not sure' group). To simplify tables only results relevant to the focus of this paper have been presented (i.e., 'HCV positive' and 'HCV negative'). No differences were detected between the 'never tested/not sure' and other groups.