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Table 3 Multivariate logistic regression of adolescent murderous ideation and behaviours on number of school bullying types (N = 5726)

From: Is involvement in school bullying associated with increased risk of murderous ideation and behaviours among adolescent students in China?

Variety of school bullying experience % Ideation Plans Preparation Attempts
% aOR (95%CI) a % aOR (95%CI) b % aOR (95%CI) c % aOR (95%CI) d
Bully
 Non-involved 76.7 8.4 1.00 [Ref] 1.9 1.00 [Ref] 0.8 1.00 [Ref] 0.3 1.00 [Ref]
 One type 15.2 22.5 2.83 (2.17 to 3.69) 7.1 3.34 (2.14 to 5.22) 3.1 3.49 (1.81 to 6.73) 1.3 4.21 (1.48 to 11.94)
 Two types 5.0 22.0 2.65 (1.66 to 4.25) 10.1 4.57 (2.35 to 8.89) 5.5 5.66 (2.32 to 13.80) 2.8 7.74 (2.15 to 27.91)
 Three types 2.2 22.4 2.79 (1.40 to 5.56) 18.4 9.91 (4.61 to 21.28) 14.3 15.60 (6.53 to 37.29) 6.1 17.91 (4.87 to 65.91)
 Four types 0.9 32.6 4.49 (2.38 to 8.45) 30.4 18.37 (9.39 to 36.97) 21.7 28.38 (12.97 to 62.10) 17.4 59.51 (22.90 to 154.69)
 Number of types    1.59 (1.43 to 1.77)   2.12 (1.85 to 2.43)   2.36 (2.00 to 2.78)   2.72 (2.18 to 3.39)
Victim
 Non-involved 89.7 8.0 1.00 [Ref] 2.0 1.00 [Ref] 0.9 1.00 [Ref] 0.3 1.00 [Ref]
 One type 6.7 13.4 1.60 (1.28 to 2.01) 3.4 1.54 (1.01 to 2.36) 1.5 1.50 (0.80 to 2.83) 0.6 1.80 (0.63 to 5.13)
 Two types 1.9 19.9 2.44 (1.78 to 3.35) 7.0 3.04 (1.82 to 5.05) 3.1 3.12 (1.49 to 6.54) 1.4 4.05 (1.29 to 12.71)
 Three types 0.9 25.8 3.28 (2.14 to 5.02) 12.1 5.09 (2.82 to 9.21) 7.3 7.00 (3.28 to 14.97) 5.6 15.66 (5.98 to 40.99)
 Four types 0.8 21.6 2.64 (1.33 to 5.24) 15.7 7.49 (3.83 to 16.60) 9.8 9.28 (3.45 to 24.95) 7.8 21.58 (6.62 to 70.36)
 Number of types    1.45 (1.32 to 1.59)   1.69 (1.48 to 1.94)   1.81 (1.51 to 2.18)   2.29 (1.79 to 2.93)
  1. Note: % refers to percent of positive ideation, plans, preparation and attempts in each type of school bullying experience
  2. a Model adjusted for gender, self-estimated family economic status, relationship with mother, relationship with father and number of friends that were statistically significant in univariate analyses
  3. b Model adjusted for gender, relationship with mother, relationship with father and number of friends
  4. c Model adjusted for gender and number of friends
  5. d Model adjusted for gender
  6. aOR Adjusted odds ratios,CI Confidence interval
  7. Results arrived statistically significant at p < 0.05 are in boldface type