Table 1.

Characteristics of the study population categorized by BMI.

	Underweight		Normal		Overweight		Obese
	Female	Male	Female	Male	Female	Male	Female	Male
Subjects	49	13	168	93	55	115	20	38
Age (years)	38.0 ± 25.6	21.5 ± 5.5	35.6 ± 14.3	37.8 ± 17.3	38.1 ± 12.6	41.7 ± 15.9	35.5 ± 12.7	34.7 ± 12.5
BMI (kg/m2)	17.5 ± 1.0	16.7 ± 1.1	20.7 ± 1.3	21.3 ± 1.3	24.7 ± 1.3	25.1 ± 1.2	31.7 ± 4.3	31.2 ± 3.2