Suicide and related health risk behaviours among school learners in South Africa: results from the 2002 and 2008 national youth risk behaviour surveys

Table 3 Hierarchical logistic regression of suicide attempt on demographic, psychological and behavioral measures for the 2002 and 2008 samples presenting odds ratio’s (OR), significance values and explained variance (R ² )

	Block 1		Block 2		Block 3
	2002	2008	2002	2008	2002	2008
Block/Variables entered	Odds ratio	Odds ratio	Odds ratio	Odds ratio	Odds ratio	Odds ratio
Demographic measures
Age	1.176^**	1.277**	1.095^**	1.174^**	1.034	1.126^**
Gender	1.411^**	1.354**	1.413^**	1.418^**	2.178^**	2.095^**
Grade	0.736^**	0.690**	0.781^**	0.748^**	.819^**	0.790
School performance	0.968	0.938	0.995	0.943	0.999	0.959
Income Father	0.910	1.026	1.006	1.059	0.968	1.050
Income Mother	0.035	1.007	0.933	0.994	0.894	0.946
Psychological measures
Feeling hopeless			2.459^**	2.243^**	1.752^**	1.755^**
Body dissatisfaction			.980	0.829^**	1.029	0.856^**
Feeling unsafe			2.459^**	2.096^**	1.655^**	1.419^**
Risk behaviour measures
Violence
Carry a weapon					1.284	1.474^**
Involvement in physical fight					1.358^**	1.323^**
Violent behaviour-victim					1.563^**	1.476^**
Violent behaviour-actor					1.808^**	1.431^**
Substance use
Smoking					1.176	1.579^**
Alcohol					1.332^**	1.159
Marijuana					1.500^**	1.095
Illegal drugs					1.390^**	1.576^**
Unsafe sex					1.310^**	1.160
Unhealthy eating					1.064	1.020
Exercise					1.025	1.023
Unsafe driving
Seatbelt use					1.003	1.009
Drunk driving					1.231	1.210
R ²	.02		.11		.21
R ² change	.02		.09		.10
χ ² change	68.49**		276.78^**		341.27^**

ISSN: 1471-2458