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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