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Table 3 Multivariate logistic regression predicting factors on suicidal behaviour

From: Adolescent suicidal behaviour in Namibia: a cross-sectional study of prevalence and correlates among 3,152 school learners aged 12–17 years

Variable

Suicide Ideation (N = 2199)

Suicide Plan (N = 2199)

Suicide Attempt (N = 2199)

 

β

AOR [95% CI]

p-value

β

AOR [95% CI]

p-value

β

AOR [95 CI]

p-value

Demographics

         

Gender:

         

Female

 

1

  

1

  

1

 

Male

-0.15

0.86 [0.64, 1.15]

0.309

-0.19

0.82 [0.66, 1.03]

0.088

-0.09

0.91 [0.77, 1.08]

0.269

Age

0.12

1.13 [1.04, 1.22]

0.004

0.10

1.11 [0.99, 1.23]

0.061

0.10

1.10 [1.00, 1.21]

0.047

School grade:

         

Grade 6–9

 

1

  

1

  

1

 

Grade 10–12

-0.41

0.66 [0.52, 0.85]

0.002

-0.64

0.52 [0.40, 0.70]

< 0.001

-0.72

0.49 [0.35, 0.69]

< 0.001

Mental health and lifestyle factors

       

Loneliness

0.54

1.71 [1.22, 2.39]

0.003

0.54

1.71 [1.27, 2.29]

0.001

0.47

1.60 [1.17, 2.18]

0.005

Worry/anxiety

0.40

1.49 [1.13, 1.96]

0.007

0.44

1.56 [1.11, 2.18]

0.013

0.31

1.36 [0.94, 1.97]

0.104

Alcohol use

0.15

1.16 [0.81, 1.66]

0.389

0.17

1.19 [0.91, 1.54]

0.189

0.05

1.05 [0.76, 1.46]

0.769

Leisure-time sedentary behaviour

0.32

1.36 [1.08, 1.72]

0.009

0.22

1.25 [0.96, 1.63]

0.090

0.10

1.11 [0.83, 1.49]

0.479

Cannabis use

0.35

1.42 [0.84, 2.42]

0.182

0.48

1.61 [0.99, 2.64]

0.057

0.78

2.18 [1.29, 3.67]

0.005

Interpersonal factors

         

Being sexually active

0.20

1.22 [0.93, 1.60]

0.147

0.30

1.34 [0.99, 1.81]

0.054

0.18

1.20 [0.95, 1.53]

0.125

Close friends

0.08

1.08 [0.72, 1.63]

0.694

-0.14

0.87 [0.58, 1.31]

0.480

0.06

1.06 [0.73, 1.54]

0.745

Physical fight

0.18

1.19 [0.84, 1.70]

0.309

0.30

1.35 [1.00, 1.83]

0.048

0.21

1.24 [0.93, 1.65]

0.141

School-level factors

         

Physical attack

0.42

1.53 [1.15, 2.03]

0.005

0.41

1.51 [1.15, 1.99]

0.005

0.69

1.99 [1.56, 2.56]

< 0.001

Truancy

-0.05

0.96 [0.68, 1.35]

0.788

0.19

1.21 [0.88, 1.66]

0.236

0.17

1.19 [0.83, 1.70]

0.338

Peer support

0.07

1.08 [0.81, 1.44]

0.609

0.25

1.28 [0.96, 1.72]

0.091

0.20

1.22 [0.96, 1.54]

0.098

Bullying victimisation

0.18

1.20 [0.93, 1.54]

0.157

0.35

1.42 [1.12, 1.79]

0.005

0.61

1.83 [1.39, 2.42]

< 0.001

Family-level factors

         

Parental supervision

0.07

1.06 [0.82, 1.40]

0.619

0.38

1.46 [1.12, 1.90]

0.006

0.26

1.29 [0.98, 1.70]

0.069

Parental understanding

-0.26

0.77 [0.56, 1.06]

0.106

-0.21

0.81 [0.59, 1.12]

0.202

0.16

1.17 [0.92, 1.48]

0.187

Parental monitoring

-0.07

0.93 [0.76, 1.14]

0.478

-0.04

0.96 [0.72, 1.27]

0.751

-0.32

0.73 [0.57, 0.94]

0.016

Parental intrusion of privacy

0.29

1.34 [1.04, 1.73]

0.024

0.25

1.29 [1.00, 1.65]

0.047

0.44

1.55 [1.21, 1.99]

0.001

Food insecurity

0.23

1.26 [0.89, 1.78]

0.181

-0.07

0.93 [0.71, 1.23]

0.602

0.15

1.16 [0.82, 1.65]

0.392

McFadden’s R2

 

0.054

  

0.08

  

0.110

 

McKelvey and Zavoina’s R2

 

0.090

  

0.14

  

0.182

 

Hosmer–Lemeshow GOF test (sig.)

 

2072 (0.30)

  

2064 (0.35)

  

2011 (0.67)

 

Overall percentage correctly classified

 

81.40%

  

76.40%

  

79.45%

 
  1. Note. AOR = adjusted odds ratio; CI = Confidence Interval; statistically significant results are in bold face
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BMC Psychiatry

ISSN: 1471-244X

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