Table 3.
Zero-Inflated Poisson Regression Models of Alcohol Use (≥5 Drinks) Frequency Categories by Individual Subject Intercepts and Slopes from Multilevel Linear Models (MLM) of Orbital Frontal Cortex (OFC) Volume Residuals and OFC Thickness by Time-Varying CDI-C Anhedonia (N=135)
Estimate | SE | t | p | |
---|---|---|---|---|
Zero-inflated: alcohol abstinence | ||||
Intercept | 8.0334 | 5.3138 | 1.51 | 0.1306 |
Intercept from MLM of OFC volume residuals | −0.2931 | 0.2261 | −1.30 | 0.1949 |
Caucasian race | 1.3022 | 0.8949 | 1.46 | 0.1456 |
Male gender | −0.4264 | 0.7879 | −0.54 | 0.5884 |
Age at last assessment | −0.5672 | 0.3407 | −1.66 | 0.0959 |
Continuous: frequency of use | ||||
Intercept | −3.1602 | 2.4822 | −1.27 | 0.2030 |
Intercept from MLM of OFC volume residuals | −0.2063 | 0.0705 | −2.93 | 0.0034 |
Caucasian race | −0.0643 | 0.3450 | −0.19 | 0.8521 |
Male gender | 0.2422 | 0.3298 | 0.73 | 0.4628 |
Age at last assessment | 0.1944 | 0.1529 | 1.27 | 0.2037 |
| ||||
Zero-inflated: alcohol abstinence | ||||
Intercept | 8.5058 | 4.7860 | 1.78 | 0.0755 |
Slope from MLM of OFC volume residuals | 7.5032 | 4.1092 | 1.83 | 0.0679 |
Caucasian race | 0.2992 | 0.6811 | 0.44 | 0.6604 |
Male gender | 0.0636 | 0.7470 | 0.09 | 0.9322 |
Age at last assessment | −0.5182 | 0.3036 | −1.71 | 0.0879 |
Continuous: frequency of use | ||||
Intercept | −3.0709 | 2.3429 | −1.31 | 0.1900 |
Slope from MLM of OFC volume residuals | 1.0316 | 1.4191 | 0.73 | 0.4673 |
Caucasian race | −0.5545 | 0.3014 | −1.84 | 0.0658 |
Male gender | 0.5337 | 0.3106 | 1.72 | 0.0858 |
Age at last assessment | 0.2057 | 0.1425 | 1.44 | 0.1487 |
| ||||
Zero-inflated: alcohol abstinence | ||||
Intercept | 22.8310 | 13.4559 | 1.70 | 0.0897 |
Intercept from MLM of OFC thickness | −1.5359 | 1.4005 | −1.10 | 0.2728 |
Caucasian race | 0.6745 | 0.9768 | 0.69 | 0.4899 |
Male gender | −0.9416 | 1.1661 | −0.81 | 0.4194 |
Age at last assessment | −0.4434 | 0.4822 | −0.92 | 0.3578 |
Continuous: frequency of use | ||||
Intercept | 12.2404 | 4.1696 | 2.94 | 0.0033 |
Intercept from MLM of OFC thickness | −1.5851 | 0.3743 | −4.23 | <0.0001 |
Caucasian race | −0.4532 | 0.2956 | −1.53 | 0.1252 |
Male gender | 0.1746 | 0.3350 | 0.52 | 0.6021 |
Age at last assessment | 0.3061 | 0.1617 | 1.89 | 0.0583 |
| ||||
Zero-inflated: alcohol abstinence | ||||
Intercept | 3.1761 | 14.7041 | 0.22 | 0.8290 |
Slope from MLM of OFC thickness | −36.9453 | 76.1419 | −0.49 | 0.6275 |
Caucasian race | 1.1750 | 1.5443 | 0.76 | 0.4467 |
Male gender | −0.3272 | 1.2195 | −0.27 | 0.7884 |
Age at last assessment | −0.6618 | 0.4954 | −1.34 | 0.1816 |
Continuous: frequency of use | ||||
Intercept | −9.3125 | 4.5857 | −2.03 | 0.0423 |
Slope from MLM of OFC thickness | −33.4619 | 12.0919 | −2.77 | 0.0057 |
Caucasian race | −0.2361 | 0.3057 | −0.77 | 0.4400 |
Male gender | 0.3532 | 0.3628 | 0.97 | 0.3302 |
Age at last assessment | 0.2399 | 0.1890 | 1.27 | 0.2042 |