TABLE 1.
People with obesity (n = 25) | People with normal weight (n = 21) | p value | |
---|---|---|---|
Age (y) | 31.6 (6.4) | 28 (5.2) | 0.049* |
Sex (male/female) | 4/21 | 5/16 | 0.55 |
Race/ethnicity | 12 Black/13 White | 2 Black/19 White (1 Hispanic) | 0.012* |
Education level (y) | 15.1 (1.8) | 16.3 (1.6) | 0.04* |
BMI (kg/m2) | 40 (5.0) | 22 (2.2) | <0.001*** |
Body fat percentage (%) | 48.8 (4.1) | 32.6 (5.8) | <0.001*** |
Probabilistic reward discounting (AUC) | 0.21 (0.06) | 0.19 (0.11) | 0.61 |
Delayed reward discounting (AUC) | 0.52 (0.12) | 0.53 (0.26) | 0.99 |
Eating related to emotion summed z score | 1.12 (2.57) | −1.5 (1.77) | <0.001*** |
Eating related to reward sensitivity summed z score | 1.34 (1.68) | −1.78 (1.74) | <0.001 *** |
Non-food reward sensitivity summed z score | −0.79 (2.1) | 0.9 (1.9) | 0.03* |
Sensitivity to punishment summed z score | 0.51 (1.66) | −0.87 (2.89) | 0.022* |
Independent Student t test, Mann-Whitney U test, or Pearson χ2 tests were used as appropriate. Means (SD) or frequencies are reported.
Abbreviation: AUC, area under the curve.
p ≤ 0.05
p ≤ 0.001.