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Table 4 Spearman correlation coefficients (P values) between cord blood sex hormones, growth factors, and associated binding proteins and hematopoietic stem/progenitor cell populations among different racial/ethnic groups

From: Correlation of umbilical cord blood hormones and growth factors with stem cell potential: implications for the prenatal origin of breast cancer hypothesis

Stem/progenitor cell measurement

Estradiol

Estriol

Testosterone

Sex hormone-binding globulin

Progesterone

Prolactin

Insulin-like growth factor-1

Insulin-like growth factor binding protein-3

Both parents Caucasian (n = 147)

CD34+/103 MNC

0.12 (0.16)

0.16 (0.06)

-0.04 (0.59)

-0.18 (0.03)

-0.01 (0.87)

-0.05 (0.52)

0.24 (0.003)

0.12 (0.15)

CD34+CD38-/103 MNC

0.13 (0.12)

0.25 (0.002)

0.05 (0.53)

-0.16 (0.05)

-0.02 (0.80)

-0.02 (0.80)

0.23 (0.004)

0.05 (0.58)

CD34+c-kit +/103 MNC

0.21 (0.03)

0.30 (0.001)

0.05 (0.61)

-0.17 (0.07)

-0.001 (0.99)

0.10 (0.29)

0.26 (0.005)

0.09 (0.32)

GM-CFU/103 MNC

0.11 (0.32)

0.24 (0.03)

0.13 (0.24)

-0.16 (0.16)

-0.02 (0.88)

0.13 (0.25)

0.24 (0.03)

0.07 (0.56)

Both parents African-American (n = 20)

CD34+/103 MNC

-0.25 (0.28)

-0.27 (0.24)

-0.22 (0.34)

-0.33 (0.16)

-0.14 (0.57)

-0.23 (0.32)

0.09 (0.71)

0.19 (0.41)

CD34+CD38-/103 MNC

-0.25 (0.28)

0.008 (0.97)

-0.08 (0.75)

-0.32 (0.18)

-0.10 (0.67)

-0.02 (0.93)

-0.003 (0.99)

0.86 (0.72)

CD34+c-kit +/103 MNC

-0.40 (0.09)

-0.38 (0.11)

-0.31 (0.19)

-0.42 (0.07)

-0.23 (0.34)

-0.34 (0.15)

0.12 (0.63)

0.30 (0.20)

GM-CFU/103 MNC

-0.39 (0.15)

-0.40 (0.14)

-0.25 (0.36)

-0.52 (0.04)

-0.42 (0.12)

-0.13 (0.63)

-0.02 (0.94)

0.35 (0.20)

Both parents Asian-American (n = 39)

CD34+/103 MNC

0.14 (0.38)

0.09 (0.58)

0.22 (0.19)

0.08 (0.65)

0.15 (0.37)

0.19 (0.25)

0.15 (0.36)

0.06 (0.73)

CD34+CD38-/103 MNC

0.14 (0.93)

0.07 (0.66)

0.17 (0.29)

0.03 (0.86)

0.08 (0.62)

0.14 (0.40)

0.15 (0.35)

0.004 (0.98)

CD34+c-kit +/103 MNC

0.13 (0.42)

0.10 (0.53)

0.19 (0.24)

0.08 (0.64)

0.15 (0.35)

0.19 (0.26)

0.16 (0.35)

0.05 (0.75)

GM-CFU/103 MNC

0.26 (0.25)

0.22 (0.33)

0.24 (0.30)

0.26 (0.26)

0.24 (0.29)

0.09 (0.71)

0.31 (0.17)

0.06 (0.78)

Both parents Hispanic-American (n = 15)

CD34+/103 MNC

0.45 (0.10)

-0.16 (0.58)

-0.38 (0.17)

-0.04 (0.90)

-0.06 (0.83)

0.14 (0.63)

0.51 (0.05)

0.01 (0.97)

CD34+CD38-/103 MNC

0.60 (0.02)

0.24 (0.40)

0.01 (0.96)

-0.21 (0.45)

0.09 (0.76)

0.14 (0.61)

0.38 (0.16)

-0.11 (0.70)

CD34+c-kit +/103 MNC

0.38 (0.19)

-0.05 (0.86)

-0.35 (0.22)

-0.19 (0.51)

0.16 (0.57)

0.23 (0.44)

0.62 (0.02)

0.07 (0.82)

GM-CFU/103 MNC

-0.01 (0.98)

-0.47 (0.24)

-0.49 (0.22)

-0.46 (0.26)

0.22 (0.61)

-0.25 (0.55)

0.25 (0.55)

-0.20 (0.63)

Parents of differing ethnicity/race (mixed) (n = 31)

CD34+/103 MNC

-0.06 (0.74)

-0.14 (0.46)

-0.03 (0.85)

-0.07 (0.71)

0.009 (0.96)

0.21 (0.25)

0.03 (0.87)

0.05 (0.80)

CD34+CD38-/103 MNC

-0.19 (0.32)

-0.18 (0.32)

-0.08 (0.68)

-0.03 (0.86)

-0.05 (0.79)

0.33 (0.07)

0.08 (0.65)

0.25 (0.18)

CD34+c-kit +/103 MNC

0.03 (0.87)

0.005 (0.98)

-0.002 (0.99)

-0.08 (0.68)

0.004 (0.98)

0.19 (0.31)

-0.04 (0.83)

-0.02 (0.93)

GM-CFU/103 MNC

0.19 (0.38)

0.23 (0.27)

0.24 (0.27)

-0.20 (0.34)

0.20 (0.34)

0.01 (0.95)

0.11 (0.62)

0.08 (0.72)

  1. Those correlation coefficients that are significant (P ≤ 0.05) are in boldface. GM-CSF, granulocyte–macrophage colony-forming units; MNC, mononuclear cells.