Table 5. Negative binomial model with intra-COVID-19 pandemic scores on the Dimensional Obsessive-Compulsive Scale (DOCS) as the dependent variable and pre-covid DOCS subscores as independent variables.
| Parameter Estimates | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Parameter | B | Std. Error | 95% Wald Confidence Interval | Hypothesis Test | Collinearity Statistics | ||||
| Lower | Upper | Wald Chi-Square | df | Sig. | Tolerance | VIF | |||
| (Intercept) | 2.470 | .1668 | 2.143 | 2.797 | 219.268 | 1 | .000 | ||
| Age | -.005 | .0032 | -.011 | .001 | 2.684 | 1 | .101 | .887 | 1.127 |
| Male (vs. other) gender | -.153 | .0764 | -.303 | -.003 | 4.022 | 1 | .045 | .973 | 1.028 |
| Lower (vs. higher) education levels | -.093 | .1325 | -.353 | .167 | .495 | 1 | .482 | .973 | 1.027 |
| Non-white (vs. white) ethnicity | .112 | .0874 | -.059 | .284 | 1.656 | 1 | .198 | .923 | 1.084 |
| Non-married (vs. married) status | -.050 | .0788 | -.205 | .104 | .409 | 1 | .522 | .924 | 1.082 |
| Unemployed (vs. employed) | .014 | .1547 | -.289 | .318 | .009 | 1 | .926 | .974 | 1.027 |
| Number of COVID-19 related events | .034 | .0316 | -.028 | .096 | 1.139 | 1 | .286 | .492 | 2.034 |
| Number of COVID-19 related stressful events | .064 | .0233 | .019 | .110 | 7.635 | 1 | .006 | .514 | 1.946 |
| DOCS fear of harm - before | .069 | .0176 | .034 | .103 | 15.198 | 1 | <.001 | .364 | 2.748 |
| DOCS contamination - before | .019 | .0158 | -.012 | .050 | 1.394 | 1 | .238 | .592 | 1.689 |
| DOCS symmetry - before | .052 | .0175 | .018 | .087 | 9.003 | 1 | .003 | .451 | 2.217 |
| DOCS unacceptable thoughts - before | .022 | .0149 | -.007 | .051 | 2.175 | 1 | .140 | .420 | 2.380 |
| DASS21_total_before | .004 | .0046 | -.005 | .013 | .778 | 1 | .378 | .614 | 1.629 |
Footnote: DOCS=Dimensional Obsessive-Compulsive Scale; DASS-21= Depression Anxiety Stress Scale-21