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. 2013 Oct;132(4):639–646. doi: 10.1542/peds.2012-3251

TABLE 2.

Suicidality Risk Factors in Attempters and Nonattempters

Attempters (n = 56) Nonattempters (n = 1109) d (95% Confidence Interval) F (df) P
Clinical symptomsa
 Childhood disruptive disorders 9.82 (7.2) 4.30 (5.4) 1.05 (0.76–1.33) 50.27 (1, 1131) <.001
 MDD 1.05 (1.4) 0.25 (0.8) 1.05 (0.76–1.34) 52.02 (1, 1144) <.001
 Substance disorders 1.25 (3.0) 0.33 (1.4) 0.64 (0.36–0.91) 19.68 (1, 1136) <.001
Teacher ratings
 Externalizing behavior 62.57 (18.2) 52.31 (14.0) 0.92 (0.57–1.27) 26.39 (1, 857) <.001
 Negative mood 11.79 (3.6) 9.95 (2.6) 0.71 (0.37–1.05) 16.83 (1, 838) <.001
Family environment
 Family discord, parent 0.75 (1.2) −0.04 (1.0) 1.01 (0.67–1.34) 34.26 (1, 874) <.001
 Family discord, offspring 0.74 (1.3) −0.04 (1.0) 0.92 (0.61–1.23) 33.79 (1, 1076) <.001
Personality
 Low well-being 19.91 (10.7) 16.26 (7.9) 0.52 (0.23–0.81) 12.57 (1, 1120) <.001
 Alienation 41.07 (11.5) 35.28 (9.2) 0.69 (0.41–0.97) 22.44 (1, 1124) <.001
 Low control 31.64 (9.2) 26.19 (8.4) 0.71 (0.43–0.99) 25.12 (1, 1139) <.001
Academic disengagement 0.61 (1.2) −0.39 (1.0) 0.78 (0.49–1.07) 27.70 (1, 1087) <.001
Aggregate riska 1.85 (1.8) 0.41 (0.7) 1.89 (1.60–2.18) 164.79 (1, 1136) <.001

Data presented are descriptive statistics (mean [SD]), standardized mean differences (d) between attempters and nonattempters, confidence intervals, and ANOVA results. Childhood disruptive disorders included symptoms of ODD, ADHD, and CD. Substance use disorders included nicotine dependence and alcohol, amphetamine, cannabis, cocaine, hallucinogen, inhalant, opioid, phencyclidine steroid, and other illegal drug abuse and dependence. Covariates included age at the intake assessment and gender. Standardized mean differences (d) were estimated by dividing the difference in covariate-adjusted means (attempters minus nonattempters) by the SD of the residual variance.

a

Log-transformed before analysis to reduce skew.