Table 3:

Decomposition of the differences in psychological distress scale and the prevalence of lifetime suicidal ideation and suicide plan between non-Indigenous and Indigenous adults living off-reserve in Canada^*

Variable	Psychological distress scale			Lifetime suicidal ideation			Lifetime suicide plan

	Total	Women	Men	Total	Women	Men	Total	Women	Men
Differences explained by characteristics^†

Sex	0.0104			0.0002			0.0002

Age	−0.3250	−0.4360	−0.2150	−0.0079	−0.0082	−0.0071	−0.0016	−0.0002	−0.0030

Marital status	0.0002	0.0244	−0.0146	−0.0001	0.0005	−0.0003	−0.0002	−0.0001	−0.0001

Income	−0.1320	−0.1320	−0.1330	−0.0025	−0.0027	−0.0026	−0.0011	−0.0016	−0.0008

Education	−0.0230	−0.0247	−0.0053	−0.0023	−0.0003	−0.0034	−0.0007	0.0001	−0.0010

Employment status	−0.0023	0.0687	−0.0745	−0.0001	−0.0016	0.0001	0.0000	−0.0003	−0.0011

Home ownership	−0.0676	−0.0816	−0.0542	−0.0036	−0.0056	−0.0022	−0.0008	−0.0018	−0.0004

Household arrangement	−0.0304	−0.0820	−0.0331	0.0008	−0.0003	0.0011	0.0000	−0.0004	0.0001

Urbanicity	−0.0002	−0.0001	−0.0007	−0.0001	0.0000	−0.0003	−0.0001	0.0000	−0.0001

Geographic region	−0.0251	0.0443	−0.1070	−0.0022	−0.0028	−0.0001	−0.0002	0.0014	−0.0004

–Sum explained	−0.5950^‡	−0.6190^‡	−0.6370^‡	−0.0179^‡	−0.0209^‡	−0.0149^‡	−0.0042^‡	−0.0030	−0.0068^§

Differences not explained by the characteristics (sum unexplained)	−0.3970	−0.5890	−0.1770	−0.0577^‡	−0.0730^‡	−0.0441^§	−0.0404^‡	−0.0477^‡	−0.0329^§

Differences: non-Indigenous−Indigenous	−0.992^‡	−1.208^‡	−0.814^§	−0.0757^‡	−0.0939^‡	−0.0590^‡	−0.0448^‡	−0.0507^‡	−0.0396^‡

↵* Detailed results of decomposition analyses can be found in Appendices 4, 5 and 6 (available at www.cmajopen.ca/content/9/1/E215/suppl/DC1).
↵† Negative (positive) value for each characteristic indicates the absolute value of the difference that could have been reduced (increased) if that characteristic for the Indigenous population were made to be identical to that of the non-Indigenous population. For example, if the annual equivalized income for Indigenous adults increased to the level of the non-Indigenous population, the difference in the psychological distress scale between the 2 groups could have been decreased by 0.1320 points.
↵‡ p < 0.01.
↵§ p < 0.05.