For the HPLP curves, correlations were equal to 0.931, 0.947 and 0.959.
When all genetic correlations were equal to 0.5, the genetic variance of environmental variance was slightly underestimated (−11%).
For the APHP curves using four, five or six TD, these correlations were equal to 0.882, 0.905 and 0.923, respectively.
The factor loadings for the common and unique factors, and the familial correlations were equal for boys and girls.
Twin correlations were equal in men and women for all aptitudes but Sports [∆ χ(2) = 19.027, P < .001].001]
The within-group correlations were assumed equal across the three severity groups.
When coding survival as dead (0), alive (1) or missing, rank correlations were equal to 0.132 and 0.157 for lines W1 and WB.
For example, we were particularly interested in testing whether (1) all four correlations were equal to zero, meaning that there is no familial aggregation of MetS traits, (2) all correlations were equal to each other, which would suggest a strong shared environmental component, or (3) ρFO = ρMO = ρSS suggesting that no sex differences exist in terms of parental transmission of MetS traits.
For presentation purposes, the results were grouped according to the correlation between direct and indirect effects: a. Neutral, the direct indirect correlations were equal to zero (r A DS = r E DS = 0); b.
A Z-test for proportions (assuming that proportions of positive and negative correlations were equal) was used to determine whether significantly more negative correlations occurred than by chance within each session.
