Table 3.
Results of AUDIT, BSSS-4, Monetary Delay Discounting, and Sexual Delay Discounting Assessments
| Mean (SD) | F (p) | |||
|---|---|---|---|---|
| Assessment | Less-than-weekly energy drink use | Weekly energy drink use | Unadjusted analyses | Adjusted analysesa |
| AUDIT score | 4.8 (4.3) | 8.0 (6.4) | 76.5 (<0.0001) | 24.1 (<0.0001) |
| BSSS-4 score | 3.1 (0.8) | 3.5 (0.8) | 30.6 (<0.0001) | 2.8 (0.098) |
| Monetary delay discounting | ||||
| Proportion of larger later choices | 0.46 (0.19) | 0.40 (0.18) | 20.7 (<0.0001) | 8.9 (0.003) |
| Mean log10k | −2.04 (0.69) | −1.79 (0.66) | 20.1 (<0.0001) | 9.6 (0.002) |
| Sexual delay discounting | ||||
| Least likely to have STI partner condition | ||||
| Likelihood of using condom when immediately available | 0.71 (0.38) | 0.57 (0.41) | 22.6 (<0.0001) | 10.9 (0.001) |
| Standardized AUC | 0.50 (0.40) | 0.46 (0.42) | 1.0 (0.31) | 0.3 (0.59) |
| Most likely to have STI partner condition | ||||
| Likelihood of using condom when immediately available | 0.92 (0.19) | 0.90 (0.22) | 2.5 (0.12) | 0.7 (0.4) |
| Standardized AUC | 0.78 (0.33) | 0.74 (0.35) | 1.4 (0.23) | 1.1 (0.29) |
| Least want to have sex with partner condition | ||||
| Likelihood of using condom when immediately available | 0.83 (0.29) | 0.78 (0.30) | 4.6 (0.03) | 2.1 (0.15) |
| Standardized AUC | 0.71 (0.37) | 0.65 (0.35) | 4.0 (0.05) | 0.2 (0.68) |
| Most want to have sex with partner condition | ||||
| Likelihood of using condom when immediately available | 0.71 (0.38) | 0.57 (0.42) | 21.4 (<0.0001) | 7.9 (0.005) |
| Standardized AUC | 0.46 (0.40) | 0.40 (0.42) | 2.5 (0.12) | 0.6 (0.45) |
In the adjusted analyses, all assessment outcomes were analyzed with a one-factor model (weekly energy drink use) covarying for age, sex, race, employment status, education, income, marital status, past year cigarette smoking, and past year use of any illicit drugs or nonmedical use of prescription drugs. For BSSS-4, monetary delay discounting, and sexual delay discounting outcomes, AUDIT score was also included as a covariate. All p-values in bold represent significant group differences between weekly energy drink users and less-than-weekly energy drink users at α = 0.05.
AUC, area under the curve; AUDIT, alcohol use disorders identification test; BSSS-4, four-item Brief Sensation Seeking Scale; STI, sexually transmitted infection.