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Table 2 Mean circulating leptin levels according to ethnicity and menopausal status.

From: Leptin levels and leptin receptor polymorphism frequency in healthy populations

  Mean plasma Leptin levels ± SD     
Race/Ethnicity Pre-menopausal N Post-menopausal N p-value
African-American (N = 19) - - 61.1 ng/ml ± 26.7 19 0.074*
African-Caribbean (N = 191) 41.8 ng/ml ± 27.8 135 51.7 ng/ml ± 38.2 56 0.039**
Caucasian (N = 340) - - 42.4 ng/ml ± 34.8 340  
Asian/Other (N = 24) 37.9 ng/ml ± 30.4 14 31.6 ng/ml ± 20.0 10 0.427*
  1. The p-values presented are for post-menopausal women, calculated with Caucasians as the reference group and *adjusted for body mass index and age; **adjusted for age only (BMI was not available fore these subjects). SD = standard deviation, N = number.