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The association between suicidal behaviour and violence, sexual abuse, and parental substance abuse among Sami and Greenlandic adolescents: the WBYG study and the NAAHS Cover

The association between suicidal behaviour and violence, sexual abuse, and parental substance abuse among Sami and Greenlandic adolescents: the WBYG study and the NAAHS

Open Access
|Apr 2023

Figures & Tables

Table 1

Distribution of outcome and associated variables by ethnicity and gender.

FemaleMaleTotalEffect gender ofFemaleMaleTotalEffect gender ofEffect ethnicity of
N%N%N%X2/PN%N%N%X2/PX2/p
Outcome variables
Suicidal behavior
Suicidal thoughts10850.75826.716637.626.07p<.00111651.83018.614636.643.73p<.001.026.873
No suicidal thoughts10549.315973.326459.710848.213181.423959.9
Suicide attempts3516.47.4165111.58.340047533.3159.39022.630.28p<.00119 17p<.001
No suicide attempts17883.620092.637885.515066.714690.729674.2
Negative life events
Experienced violence3918.15826.19722.24.030454820.82917.37719.3.77.379.92.338
Not experienced violence17681.916473.934077.818379.213982.732280.7
Experienced sexual abuse198.983.6276.25.390203515.21.6369.025.11p<.0012.55110
Not experienced sexual abuse19491.121696.441093.819684.816799.436391.0
Parents' substance abuse: Yes104.7208.8306.83.06.08015367.48753.724061.77.51006285.98p<.001
Parents' substance abuse: No20595.320691.241193.27432.67546.314938.3
Associated variables
Socio-demographics
Gender21648.922651.123157.916842.1
Living situation1.87.6009.28.02670.05p<.001
Living with both parents13964.413158.727061.510144.96542.516641.6
Single-parent family5324.56629.611926.97734.23824.811528.8
Living in a stepparent family188.3219.4398.894.0159.8246.0
Outside biological family62.852.2112.53816.93522.97318.3
Living context.09.764.33.56665.43p<.001
Urban living10347.711149.121448.417374.913077.49624.1
Rural living11352.311550.922851.65825.13822.630375.9

1 Based on working samples of 442 Sami (NAAHS year 2003-05) and Inuit (WBYG year 2004-05) adolescents, aged 15-16

Table 2

OR of suicidal thoughts on negative life events and socio-demographic independent variables.

Unadjusted OR (95% CI)Adjusted OR (95% CI)Unadjusted OR (95% CI)Adjusted OR (95% CI)
Negative life events
Not experienced negative life event1.0 (ref.)
Experienced violence2.49 (1.56-3.98)a2.91 (1.71-4.97)a3.09 (1.85-5.16)a3.02 (1.66-5.50)a
Experienced sexual abuse7.85 (2.91-21.17)a7.92 (2.53-24.79)a5.80 (2.64-12.73)a2.37 (1.00-5.61)c
Parental substance abuse1.66 (.77-3.57)1.64 (.67-3.99)1.97 (1.27-3.06)b1.40 (.85-2.31)
Female gender2.82 (1.88-4.22)a3.44 (2.18-5.45)a4.69 (2.92-7.55)a4.23 (2.45-7.28)a
Family situation
Living with both parents1.0 (ref.)
Living in a single-parent family1.28 (.816-2.01)1.37 (.83-2.26)1.65 (1.00-2.73)c1.57 (.90-2.73)
Living in a stepparent family5.34 (2.47-11.53)a5.65 (2.40-13.33)a2.02 (.83-4.88)2.48 (.85-7.18)
Living outside the biological family1.13 (.32-3.96).44 (.09-2.18)1.80 (1.01-3.21)c1.93 (.95-3.89)d
Rural living.91 (.62-1.35)1.12 (.72-1.75)1.87 (1.16-3.01)c1.44 (.80-2.60)

1 Based on working samples of 442 Sami (NAAHS year 2003-05) and Inuit (WBYG year 2004-05) adolescents, aged 15-16.

Note: Unadjusted model shows crude/unadjusted OR bivariate associations with no controls. Adjusted model shows adjusted OR with control for negative life events, gender, family situation and living context.

a p ≤ .001, b p ≤ .01, c p ≤ .05, d Strong trend p = .07

Table 3

OR of suicide attempts on negative life events and socio-demographic independent variables.

Unadjusted OR (95% CI)Adjusted OR (95% CI)Unadjusted OR (95% CI)Adjusted OR (95% CI)
Negative life events
Not experienced negative life event1.0 (ref.)
Experienced violence3.49 (1.88-6.48)a4.25 (2.09-8.65)a3.08 (1.80-5.26)a2.94 (1.59-5.45)a
Experienced sexual abuse9.31 (4.06-21.33)a7.33 (2.90-18.53)a5.70 (2.80-11.63)a2.47 (1.10-5.55)c
Parental substance abuse2.15 (.83-5.59)1.68 (.52-5.47)1.75 (1.05-2.91)c1.17 (.66-2.07)
Female gender2.46 (1.32-4.59)b2.81 (1.36-5.82)b4.87 (2.67-8.86)a4.34 (2.21-8.51)a
Family situation
Living with both parents1.0 (ref.)
Living in a single-parent family.75 (.35-1.59).72 (.31-1.66)1.24 (.70-1.19)1.05 (.56-1.97)
Living in a stepparent family2.96 (1.30-6.74)b3.12 (1.20-8.12)c1.03 (.36-2.97).99 (.28-3.51)
Living outside the biological family1.78 (.37-8.63).43 (.06-3.19)1.59 (.84-3.00)1.21 (.56-2.62)
Rural living1.28 (.71-2.30)1.93 (.96-3.88)d2.86 (1.71-4.77)a2.62 (1.40-4.91)b

1 Based on working samples of 442 Sami (NAAHS year 2003-05) and Inuit (WBYG year 2004-05) adolescents, aged 15-16

Note: Unadjusted model shows crude/unadjusted OR bivariate associations with no controls. Adjusted model shows adjusted OR with control for negative life events, gender, family situation and living context.

a p ≤ .001 b p ≤ .01 c p ≤ .05, d Strong trend p = .06

Table 4

Unadjusted and multiple regression analysis predicting suicidal thoughts in Sami and Inuit female and male adolescents

FemalesMalesFemalesMales
UnadjustedAdjustedUnadjustedAdjustedUnadjustedAdjustedUnadjustedAdjusted
OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)
Negative life events
Not experienced negative life event1.0 (ref.)
Experienced violence2.222.393.993.664.133.402.382.89
(1.070-4.60)c(1.04-.48)c(2.05-7.77)a(1.82-7.35)a(1.98-8.62)a(1.55-7.45)b(.95-5.94)d(1.03-8.14)c
Experienced sexual abuse20.63 (2.70-157.65)b25.82 (3.11-214.53)b2.83 (.69-11.72)3.04 (.54-17.06)3.79 (1.64-8.78)b2.22 (.89-5.56).00f.00f
Parental substance abuse9.5511.181.06.841.971.691.29.94
(1.19-76.78)c(1.17-107.11)d(.36-3.11)(.25-2.82)(1.12-3.47)c(.91-3.14)(.57-2.92)(.39-2.29)
Family situation
Living with both parents1.0 (ref.)
Single-parent family1.451.271.391.251.351.292.623.01
(.77-2.76)(.63-2.54)(.70-2.77)(.60-2.63)(.74-2.46)(.67-2.46)(.88-7.79)(.98-9.28)d
Stepparent family9.977.114.994.628.955.692.862.25
(2.21-45.03)b(1.46-34.55)c(1.83-13.64)b(1.58-13.56)b(1.06-75.56)c(.60-53.69)(.71-11.46)(.48-10.46)
Outside biological family1.25.17.91.712.011.402.954.74
(.24-6.39)(.02-1.85)(.10-8.46)(.07-7.21)(.92-4.38)e(.58-3.40)(.98-8.83)d(1.35-16.68)c
Rural/urban living.941.35.86.952.912.38.84.41
(.55-1.62)(.73-2.48)(.47-1.56)(.49-1.86)(1.51-5.61)3(1.13-5.02)c(.32-2.25)(.12-1.36)

1 Based on working samples of 442 Sami (NAAHS year 2003-05) and Inuit (WBYG year 2004-05) adolescents, aged 15-16

The unadjusted model shows crude/unadjusted OR, bivariate associations with no controls. The adjusted model shows adjusted OR with control for all independent variables included in the table (negative life events, family situation and living context).

ap < .001, b p < .01,c p < .05, d Strong trend p = .06,e Strong trend p = .08, f Not valid values due to very few respondents in this category

Table 5

Unadjusted and multiple regression analysis predicting suicide attempts in Sami and Inuit female and male adolescents

FemalesMalesFemalesMales
UnadjustedAdjustedUnadjustedAdjustedUnadjustedAdjustedUnadjustedAdjusted
OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)OR (95% Cl)
Negative life events
Not experienced negative life event1.0 (ref.)
Experienced violence3.053.306.966.213.092.923.573.64
(1.35-6.88)b(1.29-8.41)c(2.26-21.41)3(1.88-20.48)b(1.60-5.95)3(1.41-6.04)b(1.16-10-98)c(1.02-13.01)c
Experienced sexual abuse8.12 (2.98-22.07)38.44 (2.89-4.65)a8.91 (1.91-41.45)b3.25 (.40-26.32)3.78 (1.79-7.97)32.41 (1.05-5.56)c.00f.00f
Parental substance abuse1.28 (.26-6.30)1.24 (.19-.92)4.43 (1.26-15.54)c2.14 (.42-10.88)1.89 (1.01-3.52)c1.53 (.77-3.03).74 (.26-2.15).54 (.16-1.74)
Family situation
Living with both parents1.0 (ref.)
Single-parent family.72 (.27.1.90).71 (.25-2.04).95 (.28-3.28).68 (.16-2.90).92 (.48-1.78).81 (.39-1.64)2.90 (.76-11.07)2.91 (.73-11.57)
Stepparent family2.762.603.874.452.271.121.04.85
(.93-8.17)e(.75-.04)(1.04-14.41)c(.93-21.22)d(.53-9.67)(.23-5.57)(.11-10.00)(.08-9.06)
Outside biological family2.76 (.93-8.17)e.64 (.07-6.02).00f.00f2.15 (.99-4.66)d1.36 (.56-3.32)1.45 (.31-6.90)1.05 (.18-6.23)
Rural/urban living1.14 (.55-2.35)1.48 (.63-3.48)1.63 (.57-4.67)2.87 (.79-10.41)3.52 (1.88-6.61)a2.91 (1.41-6.00)b1.86 (.59-5.83)1.75 (.43-7.11)

1 Based on working samples of 442 Sami (NAAHS year 2003-05) and Inuit (WBYG year 2004-05) adolescents, aged 15-16. The unadjusted model shows crude/unadjusted OR, bivariate associations with no controls. The adjusted model shows adjusted OR with control for all independent variables included in the table (negative life events, family situation and living context). ap < .001, b p < .01,c p < .05,dStrong trend p = .06,eStrong trend p = .07,f Not valid values due to few respondents in this category

Language: English
Page range: 10 - 26
Published on: Apr 1, 2023
Published by: Center for Evidence-based Psychiatry
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2023 Ida Pauline Høilo Granheim, Siv Kvernmo, Anne Silviken, Christina Viskum Lytken Larsen, published by Center for Evidence-based Psychiatry
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.