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. 2013 Oct 9;13:255. doi: 10.1186/1471-244X-13-255

Table 3.

Clinical characteristics according to type of self-harm behavior. Multinomial logistic regression analysisa

 
Model 1: Age at onset and DUPb
Model 2: Model 1 + Current symptoms and behavior Reference category: NoSAc
 
Reference category: NoSA
   
 
SA + NSSH
SA only
SA + NSSH
SA only
  Adj. OR
Adj. OR
Adj. OR
Adj. OR
(CI 95%) (CI 95%) (CI 95%) (CI 95%)
Age of onset and DUP
 
 
 
 
Higher age of first psychotic symptoms
0.92 (0.86 – 0.99)*
1.02 (0.98 – 1.07)ns
0.92 (0.85 – 0.99)*
1.02 (0.98 – 1.07)ns
DUP > 52 weeks (1 year)
3.10 (1.20 – 8.04)*
1.09 (0.55 – 2.17)ns
-
-
Women
7.41 (2.73 – 20.12)***
1.53 (0.77 – 3.03)ns
4.63 (1.69 – 12.64)**
1.47 (0.73 – 2.99)ns
Depressive episode, first symptoms before the age of 18
4.82 (1.88 – 12.35)**
3.01 (1.31 – 6.95)*
3.36 (1.20 – 9.40)*
2.62 (1.08 – 6.32)*
Current symptoms and behavior
 
 
 
 
PANSS G14 (Impulsive aggression) > 1
 
 
5.30 (2.00 – 14.04)**
0.93 (0.42 – 2.06)ns
CDSS (current depression) suicide item excluded     1.22 (1.10 – 1.35)*** 1.09 (1.00 – 1.18)*

aThe data in the columns presents the odds ratios for participants with SA + NSSH or SA only having the given characteristic compared to participants with NoSA (reference category). Levels of statistical significance: ns = not significant * = p < 0.05, ** = p < 0.01, *** = p < 0.001.

bVariables entered in Model 1: Age of first psychotic symptoms, Depressive episode, First symptoms before the age of 18, DUP > 52 weeks, Gender.

cVariables entered in Model 2: step 1 + Current medication, GAF F, CDSS (current depression), PANSS G14 (Impulsive aggression), InterSePT 5 (Current suicidality). Step 2 Model chi-square = 311.084, df = 10, p < .001. The model as a whole explained between 31% (Cox and Snell R2) and 37% (Nagelkerke R2) of the variance and correctly identified 71% of the cases. n = 233 in the final model.