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Table 2 Results of simple factor and multiple factors multinomial logistic regression of suicidal ideation, self-harm, and suicide attempts

From: Associations between Chinese adolescents subjected to traditional and cyber bullying and suicidal ideation, self-harm and suicide attempts

 

Suicidal ideation, suicide attempts, and self-harm OR (95% CI) a

Suicide attempts

Suicidal ideation plus self-harm

Suicidal ideation only

Self-harm only

Simple logistic regression model

Bullying victimization

 Combined bullying

8.1 (4.1, 15.9)***

6.0 (2.5, 14.0)***

4.6 (2.9, 7.5)***

NA

 Cyber bullying only

3.0 (1.5, 6.0)**

3.6 (1.7, 7.7)**

2.7 (1.8, 4.0)***

4.7 (1.7, 12.8)**

 Traditional bullying only

2.0 (1.2, 3.4)**

2.0 (1.1, 3.6)*

1.6 (1.2, 2.2)**

2.9 (1.3, 6.5)**

 Neither

1.0

1.0

1.0

1.0

Multiple logistic regression model

 Psychopathology symptoms score

1.3 (1.2, 1.4)***

1.3 (1.2, 1.3)***

1.2 (1.1, 1.2)***

1.2 (1.1, 1.3)***

Gender

 Girls

2.7 (1.7, 4.3)***

2.5 (1.5, 4.2)***

1.7 (1.4, 2.2)***

1.2 (0.6, 2.4)

 Boys

1.0

1.0

1.0

1.0

Grade

 7th

1.1 (0.6, 1.9)

1.0 (0.5, 1.8)

1.1 (0.8, 1.5)

2.4 (0.9, 6.5)

 8th

1.1 (0.6, 2.0)

0.9 (0.5, 1.7)

0.9 (0.7, 1. 3)

1.4 (0.4, 4.3)

 9th

1.0

1.0

1.0

1.0

Urbanity of school

 Urban

1.7 (0.9, 3.5)

0.9 (0.5, 1.8)

1.5 (1.1, 2.1)*

1.8 (0.6, 4.7)

 Suburban

1.5 (0.8, 3.0)

0.7 (0.4, 1.3)

1.0 (0.7, 1.4)

1.3 (0.5, 3.4)

 Island

1.0

1.0

1.0

1.0

Type of school

 Government-funded

0.7 (0.4, 1.2)

0.7 (0.4, 1.2)

0.7 (0.5, 0.9)**

5.0 (1.2, 21.2)*

 Private

1.0

1.0

1.0

1.0

Bullying victimization

 Combined bullying

5.1 (2.3, 11.2)***

4.3 (1.7, 10.8)**

3.9 (2.3, 6.6)***

NA

 Cyber bullying only

2.0 (0.9, 4.4)

2.8 (1.2, 6.1)*

2.4 (1.5, 3.6)***

4.3 (1.5, 12.1)**

 Traditional bullying only

1.7 (0.9, 3.0)

1.5 (0.8, 2.9)

1.4 (1.0, 1.9)*

2.8 (1.2, 6.5)*

 Neither

1.0

1.0

1.0

1.0

  1. Abbreviation: OR, odds ratio; CI, confidence interval; NA, not applicable
  2. a The reference category for the outcome variables were none (without self-harm, suicidal ideation and suicide attempts); * P < 0.05, ** P < 0.01, *** P < 0.001