Intentional injury among the indigenous and total populations in British Columbia, Canada: trends over time and ecological analyses of risk

Table 6 Ecologic analysis of risk of hospitalization due to intentional injury among Health Service Delivery Area population groups in British Columbia, 1999-2008^a. Regression^b statistics from best-fitting model with multiple independent (X) variables

X Variable	min	max	mean^c	SD^c	N	B^d	SE^e	SRR change per SD^g	L95CL^h	U95CL^h
(Constant)					92	2.160	0.444
Occupation Risk Indigenous	0.006	1.446	0.770	0.521	92	7.598	0.780	3.962	3.154	4.770
Industry Risk LabourForce	0.448	0.900	0.708	0.102	92	1.436	0.390	0.146	0.067	0.225
Employed	0.380	0.734	0.572	0.083	92	−3.796	0.765	−0.316	−0.442	−0.189
High School Indigenous	0.005	0.871	0.405	0.279	92	−11.362	1.949	−3.168	−4.249	−2.087
University Degree Indigenous	0.000	0.149	0.032	0.032	92	38.779	7.082	1.246	0.793	1.698

Multivariable model statistics: R² = 0.912, F = 177.632, p <0.001
^aThree population groups (total, Indigenous on-reserve and Indigenous off-reserve) divided by 16 HSDAs and 2 time periods (1998–2003 and 2004–2008)
^bThe dependent (Y) variable is SRR of hospitalization due to intentional injury, and regression is weighted by person-years
^cUnweighted mean and standard deviation (SD) of the independent (X) variable
^dB = regression coefficient
^eSE = standard error of the regression coefficient
^fp = probability that B = 0
^gSRR change per SD = BxSD. One SD change in the independent variable is associated with absolute change in the Standardized Relative Risk of injury by this amount
^h95% confidence limits of the SRR change per SD

ISSN: 1475-9276