DTCV Cohort (n=180) Unmatched Control (n=4687)1 Matched Comparison Group (n=180) Test Statistics2 (DTCV Cohort vs. Matched Group) P value (DTCV Cohort vs. Matched Group)
Age at enrolment in years
Mean (SD)
35.4 (9.7)   34.6 (9.7)   36.0 (9.6)   0.617   0.537
Gender
Male
Female
127 (71)
53 (29)
4114 (88)
573 (12)
  135 (75)
45 (25)
 0.897   0.343
Ethnicity
Caucasian
Aboriginals
Other
96 (53)
53 (29)
31 (17)
  2854 (61)
795 (17)
1038 (22)
  85 (47)
53 (29)
42 (23)
2.326   0.313
Education level
Grade 9 or less
Grade 10/11
Grade 12
Vocational /University
37 (20)
68 (38)
59 (33)
16 (9)
665 (14)
1652 (35)
1611 (34)
759 (16)
30 (17)
77 (43)
59 (33)
14 (8)
1.423   0.700
1-Highlighted variables indicate significant differences (P < 0.001) between DTCV Cohort and Unmatched Group
2-Test statistics was t value for age and were chi-square values for gender, ethnicity and education
Table 1: Comparison of Socio-demographic Characteristics between DTCV Participants and Comparison Group.
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