Table 2.
Proportional Hazard Regression Testing Clinical Predictors of Remission and Relapse From Obsessive-Compulsive Disorder (OCD) Over 5 Years (N = 213)
| B (SE) | χ2 | Pa | Hazard Ratio | 95% CI | |
|---|---|---|---|---|---|
| Remission predictorsb | |||||
|
| |||||
| Duration of OCD (years) | −0.06 (0.02) | 26.14 | <.0001 | 0.95 | 0.92–0.97 |
| OCD severity (YBOCS total score) | −0.12 (0.02) | 30.56 | <.0001 | 0.88 | 0.85–0.92 |
| Insight (BABS total score) | 0.04 (0.03) | 2.72 | .10 | 1.04 | 0.99–1.10 |
| Overresponsibility for harm | 0.64 (0.27) | 5.41 | .02 | 1.89 | 1.11–3.22 |
| Gender | −0.34 (0.23) | 2.29 | .13 | 0.71 | 0.45–1.11 |
| Hoarding | −0.75 (0.73) | 1.05 | .31 | 0.47 | 0.11–1.98 |
| OCPD | −0.48 (0.30) | 2.62 | .11 | 0.62 | 0.34–1.11 |
| Axis I comorbidityc | 0.06 (0.10) | 0.33 | .57 | 1.06 | 0.87–1.29 |
|
| |||||
| Relapse predictorsd | |||||
|
| |||||
| Duration of OCD (years) | −0.01 (0.01) | 0.81 | .37 | 0.99 | 0.97–1.01 |
| OCD severity (YBOCS total score) | 0.02 (0.02) | 0.42 | .52 | 1.02 | 0.97–1.07 |
| Insight (BABS total score) | −0.71 (0.03) | 4.42 | .04e | 0.93 | 0.87–1.00 |
| Overresponsibility for harm | −0.73 (0.37) | 3.81 | .05f | 0.48 | 0.23–1.00 |
| Gender | 0.18 (0.29) | 0.40 | .53 | 1.20 | 0.68–2.11 |
| Hoardingg | … | … | … | … | … |
| OCPD | 0.94 (0.34) | 7.76 | <.005 | 2.56 | 1.32–4.96 |
| Axis I comorbidityb | 0.19 (0.14) | 1.89 | .17 | 1.21 | 0.92–1.58 |
a
Boldface indicates significance.
b
Predictors entered simultaneously. Wald χ28 = 38.18, P < .001.
c
Axis I comorbidity = number of current comorbid Axis I disorders at intake.
d
Predictors entered stepwise. Wald χ28 = 19.85, P < .01.
e
Regression artifact due to a suppression effect.
f
P = .051.
g
Hoarding was excluded from relapse analyses due to only 2 remissions among participants who identified hoarding as primary obsession category.
Abbreviations: BABS = Brown Assessment of Beliefs Scale, OCPD = obsessive-compulsive personality disorder, YBOCS = Yale-Brown Obsessive Compulsive Scale.