Overview of significance tests for associations between individual life history traits and hand asymmetry.

<p>Tests were obtained from the multivariate regression model. Tests are provided for associations with hand asymmetry using all traits and only traits showing no directional asymmetry (DA). The multivariate F-test was not significant for both analyses (for all traits: F_7,195 = 1.20, p = 0.30; for traits without DA: F_7,195 = 0.23, p = 0.98).</p

Descriptive statistics of the key life history traits studied here.

<p>Descriptive statistics of the key life history traits studied here.</p

Associations in the signed asymmetries between digit lengths and hand palm width.

<p>Associations in the signed asymmetries between digit lengths and hand palm width.</p

Overview of measurements performed on scans of post-menopausal women.

<p>On each scan 26 landmarks (yellow dots) were placed using ImageJ. On the basis of those coordinates, the width of the palm of the hand was calculated. For digits 2 to 5 (D2, D3, D4 and D5), the total digit length, the length of each phalange and the width of the first joint was calculated.</p

Association between hand asymmetry (all traits) and age of first reproduction (top), offspring sex ratio (middle) and number of children (bottom) in post-menopausal Finnish women.

<p>None of the associations was statistically significant, but these associations showed the highest effect sizes (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0034661#pone-0034661-t002" target="_blank">Table 2</a>). The sign of the slopes were opposite to what was found in previous studies (see text).</p

Pearsons correlations in signed asymmetries of digit lengths and hand palm width.

<p>Significant correlations (p<0.05) are indicated in bold.</p