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Table 3 Descriptive statistics for original and weighted BBV-TRAQ 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

Score Mean Median Standard Error Standard Deviation Minimum (number of cases) Maximum
Original BBV-TRAQ Scores       
Total Score 26 19 1.13 25.66 0 (31) 135
   Injecting 15 9 0.79 16.13 0 (75) 87
   Sex 8 2 0.47 9.62 0 (177) 40
   Other Skin Penetration 3 2 0.18 3. 60 0 (155) 20
Log 1 Weighted BBV-TRAQ Scores       
Total Score 77 52 3.63 74.21 0 405
   Injecting 59 36 3.12 63.84 0 332
   Sex 10 3 0.63 12.83 0 60
   Other Skin Penetration 8 5 0.48 9.84 0 55
Log 2 Weighted BBV-TRAQ Scores       
Total Score 160 105 8.08 165.31 0 805
   Injecting 138 82 7.50 153.41 0 770
   Sex 10 3 0.66 13.51 0 65
   Other Skin Penetration 12 6 0.75 15.39 0 80
Log 5 Weighted BBV-TRAQ Scores       
Total Score 3,899 2,387 222.17 4,547.68 0 26,095
   Injecting 3,745 2,325 217.71 4,456.33 0 25,970
   Sex 21 3 1.79 36.72 0 200
   Other Skin Penetration 133 25 14.44 295.61 0 2,500