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Table 2 Objective 2: characteristics of study population (mean ± SEM) by ethnic/race group at baseline (A) and at 1 year (B)

From: Insulin sensitivity affects propensity to obesity in an ethnic-specific manner: results from two controlled weight loss intervention studies

A. Baseline

EA (n= 46)

AA (n= ;57)

Age (yr)

34.7 ± 0.9

34.5 ± 0.8

Body weight (kg)

65.8 ± 0.9

64.9 ± 0.8

Body mass index (kg/m2)

23.7 ± 0.2

23.9 ± 0.1

Body fat (%)

34.1 ± 0.7

32.3 ± 0.6*

Fasting glucose (mg/dL)

87 ± 1

83 ± 1**

Fasting insulin (μIU/ml)

8 ± 3

8 ± 3

Insulin sensitivity [SI; x 10-4 min-1/(μIU/ml)]

4.73 ± 0.28

3.76 ± 0.25**

Acute insulin response to glucose

(AIRg; μIU/ml x 10 min)

416 ± 65

794 ± 59***

B. 1 year.

EA

AA

Energy intake (kcal/d)1

1399 ± 52

1281 ± 49

Carbohydrate intake (g/d) 1

177 ± 9

157 ± 9

Protein intake (g/d) 1

63 ± 3

54 ± 3*

Fat intake (g/d) 1

51 ± 3

50 ± 3

Glycemic load1

99 ± 5

91 ± 5

Δ%fat

+4.8 ± 0.4

+5.7 ± 0.4

Δ Lean mass (kg)

−0.09 ± 0.23

−0.30 ± 0.20

  1. *P < 0.05, **P < 0.01, ***P < 0.001 for EA vs AA.
  2. 1For diet data: n = 31 EA; n = 36 AA.
  3. Abbreviations: EA = European-American; AA = African-American.