Table 3.

(A) Comparative Serum Levels of Leptin in Different Study Groups Classified According to BMI and Coffee Consumption Rate. (B) Two-Way ANOVA Analysis for the Effect of BMI and Coffee Consumption Alone and in Combination on the Serum Levels of Leptin

A
BMI	Coffee	Mean Leptin Levels (ng/mL)	Std. Deviation	N
NW	Moderate	5.93	5.25	38
	High	5.75	5.91	28
	Total	5.85	5.50	66
OW	Moderate	14.86	9.18	35
	High	16.79	10.64	21
	Total	15.58	9.70	56
Total	Moderate	10.21	8.61	73
	High	10.48	9.86	49
	Total	10.32	9.09	122
B
Variable		F-Test	P-value
BMI		47.916	< 0.001
Coffee		0.370	0.544
BMI * Coffee		0.535	0.466

Abbreviations: BMI, body mass index; N, sample size; NW, normal body weight according to body mass index; OW, overweight.