. Author manuscript; available in PMC: 2007 Jun 19.

Published in final edited form as: Obesity (Silver Spring). 2006 Apr;14(4):727–736. doi: 10.1038/oby.2006.83

Table 3.

Subject characteristics for the insulin subgroup

	Men		Women
Group	White	African-American	White	African-American
Sample size	111	97	126	110
Age (years)	42.4 ± 9.4 (41.0, 37.0, 44.0)	37.6 ± 7.5 (38.0, 34.5, 42.0)	40.1 ± 10.7 (42.0, 36.0, 44.3)	41.0 ± 11.3 (41.0, 35.0, 45.0)
BMI (kg/m²)	27.1 ± 4.0 (26.6, 24.5, 28.7)	27.5 ± 4.8 (26.7, 24.3, 30.3)	26.7 ± 6.5 (25.2, 21.5, 30.6)	29.8 ± 6.2 (29.5, 24.4, 33.8)
WC (cm)	93.2 ± 10.7 (91.3, 86.6, 99.3)	90.9 ± 11.2 (89.9, 82.9, 96.9)	81.8 ± 14.7 (77.8, 70.2, 91.3)	89.3 ± 13.4 (91.0, 79.3, 100.4)
Percent fat	25.6 ± 7.5 (26.2, 20.0, 31.4)	23.1 ± 8.4 (23.0, 18.8, 27.6)	37.2 ± 9.6 (38.0, 28.4, 44.5)	39.2 ± 9.7 (41.1, 32.2, 46.6)
Insulin (uIU/mL)	9.5 ± 5.6 (8.0, 5.5, 11.7)	9.3 ± 6.4 (7.8, 5.4, 11.2)	8.4 ± 5.6 (7.0, 4.5, 10.9)	11.2 ± 6.1 (9.9, 6.7, 15.4)

WC, waist circumference; SD, standard deviation. Age, BMI, WC, percent fat, and insulin are presented as mean ± SD (median, 25th percentile, 75th percentile). Because not all variables are normally distributed, we present median, 25th percentile, and 75th percentile for each variable.