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Table 2 Unadjusted OR (95% CI) for self-harm by univariate analysis

From: A self-harm series and its relationship with childhood adversity among adolescents in mainland China: a cross-sectional study

  Highly lethal self-harm Less lethal self-harm with visible tissue damage Self-harm without visible tissue damage Self-harmful behaviors with latency damage Psychological self-harm
Gender Female: Male 1.30 (1.05, 1.62)* 2.18 (1.90, 2.49)*** 1.18 (1.05, 1.31)** 1.11 (0.98, 1.27) 1.42 (1.25, 1.60)***
Age   1.07 (1.02, 1.34)* 1.06 (1.02, 1.09)*** 1.11 (1.08, 1.14)*** 1.17 (1.13, 1.21)*** 1.16 (1.12, 1.20)***
Self-perceived family status Ref: Bad
  General 0.81 (0.60, 1.09) 0.85 (0.71, 1.01) 0.74 (0.64, 0.87)*** 0.79 (0.66, 0.94)** 0.72 (0.60, 0.85)***
  Good 0.92 (0.59, 1.41) 0.83 (0.63, 1.08) 0.67 (0.53, 0.85)*** 0.84 (0.65, 1.09) 0.72 (0.56, 0.93)*
Relationship with mother Good: Poor 0.55 (0.44, 0.70)*** 0.76 (0.65, 0.87)*** 0.83 (0.73, 0.94)** 0.64 (0.55, 0.74)*** 0.67 (0.58, 0.77)***
Relationship with father Good: Poor 0.59 (0.47, 0.73)*** 0.69 (0.61, 0.79)*** 0.73 (0.65, 0.83)*** 0.63 (0.55, 0.72)*** 0.66 (0.58, 0.75)***
Only child Yes: No 0.61 (0.49, 0.77)*** 0.62 (0.55, 0.71)*** 0.77 (0.69, 0.86)*** 0.77 (0.67, 0.87)*** 0.70 (0.62, 0.80)***
Family structure Ref: Nuclear Family
  Lager family 1.14 (0.89, 1.47) 1.01 (0.87, 1.18) 1.08 (0.95, 1.23) 0.93 (0.79, 1.09) 1.01 (0.87, 1.16)
  Single-parent Family 0.93 (0.61, 1.41) 1.06 (0.84, 1.34) 1.05 (0.85, 1.29) 1.07 (0.84, 1.35) 1.06 (0.85, 1.33)
  Other 1.06 (0.49, 2.30) 1.32 (0.85, 2.04) 1.47 (0.99, 2.16) 1.40 (0.91, 2.14) 1.07 (0.70, 1.66)
Childhood physical peer victimization Yes: No 2.49 (1.99, 3.12)*** 2.21 (1.92, 2.55)*** 2.20 (1.93, 2.50)*** 2.22 (1.92, 2.56)*** 2.26 (1.97, 2.60)***
Childhood verbal peer victimization Yes: No 1.87 (1.50, 2.32)*** 1.95 (1.71, 2.22)*** 2.15 (1.92, 2.40)*** 1.88 (1.65, 2.14)*** 2.35 (2.07, 2.66)***
Childhood relational peer victimization Yes: No 2.80 (2.25, 3.48)*** 3.08 (2.69, 3.52)*** 3.01 (2.67, 3.40)*** 3.44 (3.01, 3.94)*** 3,51 (3.08, 4.00)***
Physical abuse Yes: No 3.62 (2.73, 4.81)*** 2.43 (1.97, 3.00)*** 2.89 (2.37, 3.54)*** 2.99 (2.43, 3.68)*** 3.51 (2.87, 4.30)***
Emotional abuse Yes: No 4.41 (3.46, 5.62)*** 3.30 (2.77, 3.93)*** 3.16 (2.67, 3.74)*** 3.25 (2.73, 3.87)*** 3.85 (3.25, 4.57)***
Sexual abuse Yes: No 4.07 (3.14, 5.29)*** 3.12 (2.57, 3.78)*** 2.71 (2.25, 3.27)*** 3.34 (2.76, 4.04)*** 2.97 (2.46, 3.59)***
Physical neglect Yes: No 4.76 (3.60, 6.28)*** 3.38 (2.73, 4.19)*** 3.56 (2.87, 4.41)*** 4.06 (3.28, 5.02)*** 4.14 (3.35, 5.12)***
Emotional neglect Yes: No 6.96 (5.08, 9.52)*** 3.99 (3.05, 5.21)*** 3.86 (2.93, 5.09)*** 4.50 (3.44, 5.88)*** 4.31 (3.29, 5.63)***
Family life stress event scores Ref: 0
  1–2 1.35 (1.04, 1.76)* 2.14 (1.81, 2.52)*** 2.06 (1.79, 2.36)*** 1.81 (1.54, 2.14)*** 2.37 (2.01, 2.78)***
  3–10 1.84 (1.39, 2.44)*** 3.40 (2.84, 4.06)*** 3.29 (2.83, 3.83)*** 2.99 (2.51, 3.56)*** 3.84 (3.23, 4.56)***
Depression Yes: No 3.62 (2.65, 4.93)*** 1.98 (1.71, 2.30)*** 1.75 (1.55, 1.97)*** 2.26 (1.94, 2.63)*** 2.24 (1.94, 2.58)***
  1. Note: 95%CI = 95% confidence interval. * P < 0.05; ** P < 0.01; *** P < 0.001