Table 2. Regression analyses predicting odds of self-injury (left panel) and frequency of NSSI (right panel).
Variable | Odds of NSSI | Frequency of NSSI | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
B | SEB | Wald | Exp(B) | p | 95% CIa | B | SEB | β | t | p | 95% CIb | |
Step 1 | ||||||||||||
Positive affect | −.41 | .15 | 7.72 | .66 | .006 | .50–.89 | −1.13 | 1.18 | −.10 | .96 | .34 | −3.46–1.19 |
Negative affect | −.004 | .17 | .001 | .99 | .98 | .72–1.38 | 1.51 | 1.25 | .14 | 1.21 | .23 | −.97–3.99 |
Psych. distress | .64 | .19 | 11.78 | 1.89 | .001 | 1.31–2.71 | 1.80 | 1.39 | .16 | 1.30 | .20 | −.94–4.54 |
Affect intensity | .12 | .14 | .75 | 1.13 | .39 | .86–1.48 | −2.20 | 1.07 | −.19 | 2.06 | .04 | −4.32–.08 |
Step 2 | ||||||||||||
Repetitive thinking | .30 | .16 | 3.67 | 1.35 | .07 | .98–1.86 | .34 | 1.17 | .03 | .29 | .77 | −1.99–2.66 |
Use of imagery | .009 | .14 | .005 | 1.01 | .95 | .78–1.32 | −.69 | 1.12 | −.06 | .62 | .54 | −2.91–1.52 |
Vividness of imagery | .02 | .13 | .01 | 1.02 | .91 | .78–1.32 | −1.49 | 1.10 | −.13 | 1.36 | .18 | −3.66–.67 |
Step 3c | ||||||||||||
PA × NA | −.34 | .18 | 3.56 | .72 | .06 | .51–1.01 | −3.57 | 1.26 | −.37 | 2.84 | .005 | −6.05–1.08 |
NA × SUIS | .51 | .20 | 6.44 | 1.67 | .002 | 1.12–2.49 | ||||||
Final model | χ2 = 75.81, p < .001 | R = .54, R2 = .29, p = .01 |
a95% confidence intervals for Exp(B).
b95% confidence intervals for B.
cFor ease of presentation only significant interactions are included in the table; statistically significant results are highlighted in bold text.
PA: positive affect; NA: negative affect; K10: psychological distress; SUIS: spontaneous use of imagery: VVIQ: vividness if imagery.