Table 4

 Logistic regression for SIB in TS, overall model

SIBOdds ratioSEZP>|z|95% CI
LowerUpper
n = 162, LR χ2 = 43.29, df = 14, p = 0.0001, pseudo R2 = 0.21.
OCD1.160.700.250.800.363.81
Violent obsessions1.470.740.770.440.553.96
Violent/aggressive compulsive behaviours4.272.302.700.0071.4912.25
Number of obsessive symptoms1.010.040.320.750.941.09
Family history of OCD1.080.490.170.860.442.65
ADHD0.440.38−0.960.340.082.36
Rages0.690.39−0.650.520.232.11
Risk taking behaviours2.051.131.300.190.696.06
ADHD related impulsivity0.980.50−0.040.970.362.65
OCD plus ADHD2.082.030.750.450.3114.08
Severity of phonic tics1.010.080.140.890.861.18
Severity of motor tics1.290.172.050.041.011.67
Ashkenazi2.822.261.290.200.5813.58
Costa Rican1.892.270.530.600.1819.95