Table 2 Association between missing data on Aboriginality in notification data prior to data linkage and sociodemographic characteristics and disease
Characteristic | Total notifications (n = 13696) n (%) | Unknown Aboriginality n (%) | χ 2p | Unknown Aboriginality odds ratio (95%CI) |
|---|---|---|---|---|
Sex | Â | Â | 0.95 | 1.00 (0.90-1.10) |
 Male | 6544 (47.8) | 666 (10.2) | ||
 Female | 7152 (52.2) | 730 (10.2) | ||
Age | Â | Â | 0.01 | 0.88 (0.80-0.97) |
 <25 years | 7774 (56.8) | 748 (9.6) | ||
 25+ years | 5922 (43.2) | 648 (10.9) | ||
Region of residence†|  |  | 0.006 | 0.85 (0.76-0.96) |
 Non-metropolitan | 4137 (30.2) | 370 (8.9) | ||
 Metropolitan | 9438 (68.9) | 989 (10.5) | ||
Disease | Â | Â | <0.001 | Â |
 Chlamydia | 10248 (74.8) | 1276 (12.5) | ||
 Gonorrhoea | 1405 (10.3) | 4 (0.3) | ||
 Syphilis infectious | 83 (0.6) | 0 (0) | ||
 Syphilis non-infectious | 68 (0.5) | 0 (0) | ||
 Hepatitis B | 811 (5.9) | 64 (7.9) | ||
 Hepatitis C | 1080 (7.9) | 52 (4.8) | ||
Ever Aboriginal in linked data | Â | Â | ||
 No | 10810 (78.9) | 1328 (12.3) | <0.001 | 5.21 (4.10-6.63) |
 Yes | 2886 (21.1) | 68 (2.4) |  |  |