Table 2.
Study variable correlations
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9a | 9b | 10 | 11 | 12 | 13 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. BMI at test | 1 | |||||||||||||
| 2. 30-Day preoperative WL (%) | 0.106 | 1 | ||||||||||||
| 3. Dietary adherence (mean score) | 0.011 | –0.139 | 1 | |||||||||||
| 4. Grazing (Rep[eat] total score) | 0.073 | –0.249* | –0.190 | 1 | ||||||||||
| 5. LOC binge-eating (frequency) | –0.130 | –0.087 | –0.075 | 0.391** | 1 | |||||||||
| 6. Working memory (SWM errors) | –0.166 | –0.293** | 0.003 | 0.090 | 0.009 | 1 | ||||||||
| 7. Planning (OTS number of problems) | 0.125 | 0.167 | 0.113 | –0.173 | –0.024 | –0.538** | 1 | |||||||
| 8. Response Inhibition (SSRT stop latency) | 0.108 | –0.152 | –0.141 | 0.120 | 0.035 | –0.197 | –0.096 | 1 | ||||||
| 9. Inhibitory control (CWIT) | ||||||||||||||
| a. Total error inhibition trial | –0.106 | 0.040 | 0.274* | –0.014 | –0.039 | –0.104 | 0.013 | 0.362** | 1 | |||||
| b. Total time inhibition trial | –0.024 | –0.051 | 0.146 | –0.009 | –0.056 | –0.133 | 0.095 | –0.134 | 0.225* | 1 | ||||
| 10. Age | –0.166 | –0.106 | 0.185 | –0.074 | –0.219 | –0.269* | –0.085 | 0.222* | –0.74 | 0.191 | 1 | |||
| 11. Matrix reasoning | –0.008 | 0.103 | 0.087 | 0.001 | –0.016 | –0.276* | 0.360* | –0.231* | 0.061 | –0.025 | –0.103 | 1 | ||
| 12. Vocabulary | 0.185 | –0.064 | 0.067 | –0.012 | –0.119 | –0.314* | 0.249* | –0.068 | 0.081 | 0.337* | 0.067 | 0.246* | 1 | |
| 13. Depression | –0.62 | –0.249* | –0.086 | 0.440** | 0.171 | 0.088 | –0.317* | 0.117 | –0.236* | 0.031 | 0.006 | –0.233* | –0.028 1 | |
*
Correlation is significant at the 0.05-level.
**
Correlation is significant at the 0.01-level. BMI, body mass index; WL, weight loss; LOC, loss-of-control; Rep[eat], repetitive eating questionnaire; SWM, spatial working memory; OTS, One Touch Stockings of Cambridge; SSRT, stop signal reaction time; CWIT, Color-Word Interference Test.