|
Demographic factors, year and ACCHS site
|
Incidence ratea (95 % CI)b
|
Unadjusted hazard ratio (95 % CI)b
|
p-value*
|
Adjusted hazard ratio (95 % CI)b
|
p-value*
|
|---|
|
2009-2011
|
9.1 (8.1-10.3)
| | | | |
|
Year
|
|
2010
|
9.6 (7.8-11.8)
| | | | |
|
2011
|
8.9 (7.7-10.3)
| | | | |
|
Gender
|
|
Female
|
11.6 (10.1-13.3)
|
1.5 (1.1-1.9)
|
<0.01
|
1.7 (1.2-2.2)
|
<0.01
|
|
Male
|
5.8 (4.6-7.3)
|
1
|
-
|
1
|
-
|
|
Age-group (years)
|
|
15-19
|
9.0 (7.4-11.0)
|
1.3 (0.9-1.8)
|
0.06
|
1.6 (1.1-2.3)
|
<0.01
|
|
20-24
|
11.0 (9.1-13.2)
|
1.2 (0.9-1.6)
|
0.24
|
1.3 (0.9-1.8)
|
0.11
|
|
25-29
|
7.1 (5.6-9.1)
|
1
| |
1
| |
|
Aboriginal status
|
|
Aboriginal
|
9.7 (8.6-11.1)
|
1.1 (0.8-1.6)
|
0.50
|
1.2 (0.9-1.8)
|
0.05
|
|
Non-Aboriginal
|
6.3 (4.5-8.8)
|
1
|
-
|
1
|
-
|
|
ACCHS site
|
|
1
|
1.1 (0.5-2.2)
|
1.6 (0.7-3.5)
|
0.25
|
1.6 (0.7-3.6)
|
0.22
|
|
2
|
13.6 (10.4-17.8)
|
3.4 (1.6-7.1)
|
0.01
|
3.8 (1.8-8.0)
|
<0.01
|
|
3
|
14.0 (12.0-16.4)
|
2.0 (0.9-4.4)
|
0.07
|
2.2 (0.9-4.7)
|
0.05
|
|
4
|
7.6 (5.9-9.8)
|
1
| |
1
| |
- aIncidence rate per 100 person-years, bHazard ratio and 95 % confidence interval, *p-value – significance at p < 0.05
