Table 2.

Associations with Iowa Gambling Task total score.

Characteristic	r	p-value
Age (years)	0.06	0.37
Male Sex	-	0.31
Race/Ethnicity	-	0.08
Education > high school	-	0.30
Body mass index (kg/m²)	−0.11	0.13
Waist circumference (cm)	−0.13	0.07
Body fat (%)	−0.16	0.03
Impaired glucose regulation (vs. NGR)	-	0.63
Glucose, fasting (mg/dl)	0.01	0.88
Glucose, 30-min (mg/dl)	−0.08	0.27
Glucose, 60-min (mg/dl)^a	0.07	0.31
Glucose, 120-min (mg/dl)	−0.002	0.98
Glucose, 180-min (mg/dl)	−0.04	0.61
Glucose AUC (mg/dl)^a	0.01	0.88
Glucose iAUC (mg/dl)^a	0.007	0.92
Insulin, fasting (uU/ml)	−0.20	0.006
Insulin, 30-min (uU/ml)	−0.27	<0.001
Insulin, 60-min (uU/ml)^a	−0.16	0.03
Insulin, 120-min (uU/ml)^a	−0.13	0.07
Insulin, 180-min (uU/ml)^a	−0.12	0.10
Insulin, AUC (uU/ml)^b	−0.22	0.002
Insulin, iAUC (uU/ml)^b	−0.21	0.003
Leptin, fasting (ng/ml)^c	−0.22	0.008
Leptin, 30-min (ng/ml)^c	−0.23	0.008
Leptin, 60-min (ng/ml)^c	−0.21	0.012
Leptin, 120-min (ng/ml)^d	−0.21	0.014
Leptin, 180-min (ng/ml)^d	−0.22	0.010

Insulin and leptin concentrations were non-normally distributed and log₁₀-transformed. Pearson correlation coefficient and Student’s t-test used for continuous and group variables, respectively. NGR, normal glucose regulation; AUC, total area under the curve; iAUC, incremental area under the curve.

n=196 except:

n=195;

n=193;

n =138;

n =137