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Table 3 The association between breast measures of daughters and mothersa

From: A comparison of breast density measures between mothers and adolescent daughters

   Breast volumeb FGVb %FGVb
   ß p ß p ß p
All mother-daughter pairs (N = 112)a        
Corresponding Mother's DXA measure   0.08 0.26 0.12 0.09 -0.04 0.53
Ethnicity (all or part), daughterc Caucasian -0.06 0.26 -0.04 0.55 0.05 0.35
  Asian 0.02 0.70 0.06 0.34 0.06 0.25
  Other 0.08 0.12 0.09 0.10 0.01 0.83
DXA % total body fat, daughter   0.51 <0.0001 0.11 0.06 -0.90 <0.0001
DXA % total body fat, mother   -0.05 0.46 -0.04 0.59 0.01 0.85
Tanner breast (1&2, 3, 4&5)d   0.57 <0.0001 0.74 <0.0001 0.23 <0.0001
Age, daughter (years)   -0.03 0.59 0.06 0.39 0.19 <0.001
Age, mother (years)   0.10 0.05 0.11 0.05 -0.04 0.44
  Adjusted r 2 0.74 0.69 0.78
Mothers and daughters in Tanner stages 4&5 only (N = 57)a
Corresponding Mother's DXA measure   0.30 0.02 0.58 <0.0001 -0.06 0.56
Ethnicity (all or part), daughterc Caucasian -0.16 0.08 -0.16 0.19 0.04 0.59
  Asian 0.03 0.74 0.08 0.49 0.04 0.55
  Other 0.10 0.26 0.17 0.14 0.01 0.96
DXA % total body fat, daughter   0.73 <0.0001 0.23 0.05 -0.90 <0.0001
DXA % total body fat, mother   -0.16 0.22 -0.15 0.27 0.06 0.53
Age, daughter (years)   -0.04 0.68 0.03 0.83 0.11 0.16
Age, mother (years)   0.14 0.16 0.25 0.06 -0.04 0.59
  Adjusted r 2 0.61 0.34 0.77
  1. aObtained by multiple linear regression with standardized regression coefficients (ß); 12 mothers with two daughters were included twice; all characteristics shown in the table are included as covariates in the model; N = 112 pairs for all mother-daughter pairs and N = 57 for mothers and daughters in Tanner stages 4&5 only due to one mother missing DXA whole body scan.
  2. bIn daughters, breast volume and absolute FGV were log-transformed, and %FGV was square-root transformed.
  3. cBased on percentages; participants were counted more than once if they reported multiple ethnicities.
  4. dTanner breast stages were grouped into 1&2, 3 and 4&5 as a continuous varia.