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. Author manuscript; available in PMC: 2011 Mar 22.
Published in final edited form as: Psychiatry Res. 2009 Jul 23;169(1):22–27. doi: 10.1016/j.psychres.2008.06.011

Table 1.

Comparison of demographic characteristics of adolescents with self-injurious behaviors only (NSSI-Only) or self-injurious behavior with suicide attempt(s) (NSSI+SA)

Group
NSSI-Only (n = 31) NSSI+SA (n = 25) Analyses

Characteristic Mean SD Mean SD t df p
Age (years) 15.1 1.3 14.6 1.2 1.23 54 .226
Education (years) 9.2 1.4 9.0 1.6 1.07 54 .289
SES 31.0 12.5 28.0 12.5 0.87 49 .389
WASI Score 93.8 10.9 94.7 10.5 0.29 49 .770

n % n % χ 2 df p

Gender 1.95 1 .162
    Female 21 67.7 21 75.0
    Male 10 18.2 4 25.0
Ethnicity 2.67 3 .445
    Caucasian 26 83.9 20 80.0
    African American 5 14.7 3 12.0
    Hispanic 0 0.0 1 4.0
    Other 0 0.0 1 4.0
Psychiatric Diagnosis
    MDD 18 58.1 18 72.0 1.17 1 .279
    ODD 3 9.7 3 12.0 .078 1 .780
    CD 3 9.7 2 8.0 .048 1 .827
    SUD 1 3.2 1 4.0 .024 1 .877
    PTSD 0 0.0 1 4.0 1.26 1 .261
    Bulimia 1 3.2 0 0.0 .821 1 .365
    GAD 1 3.2 0 0.0 .821 1 .365
    ADHD 4 12.9 0 0.0 3.47 1 .062
Abuse Category
    Physical 9 31.0 7 33.3 0.03 1 .863
    Sexual 5 17.2 4 19.0 0.03 1 .870
    Neglect 1 3.4 2 9.5 0.80 1 .372

SES = Socioeconomic Status; WASI = Wechsler Abbreviated Scale of Intelligence; MDD = Major Depressive Disorder; ODD = Oppositional Defiant Disorder; CD = Conduct Disorder; SUD = Substance Use Disorder; PTSD = Post-traumatic Stress Disorder; GAD = Generalized Anxiety Disorder; ADHD = Attention Deficit Hyperactivity Disorder