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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Early Hum Dev. 2008 Sep 11;85(2):117–124. doi: 10.1016/j.earlhumdev.2008.07.001

Table 2.

Effect sizes for the sex differences in various ratios of length of the metacarpals (top) and metatarsals (bottom) of European-Americans aged 18–39 at death.

Effect Size (F minus M)
Ratio Number F/M Left Right
Hands
1Mc:2Mc 48/84 0.448* 0.473**
1Mc:3Mc 48/85 0.384* 0.387*
1Mc:4Mc 47/83 0.363* 0.494**
1Mc:5Mc 46/84 −0.044 −0.331
2Mc:3Mc 48/86 0.032 0.050
2Mc:4Mc 47/84 0.169 −0.042
2Mc:5Mc 46/85 0.588** 0.156
3Mc:4Mc 47/85 0.091 −0.123
3Mc:5Mc 46/86 0.524** 0.104
4Mc:5Mc 45/84 0.533** 0.253
Feet
1Mt:2Mt 46/72 0.323 0.240
1Mt:3Mt 46/74 0.195 0.057
1Mt:4Mt 45/73 0.227 0.075
1Mt:5Mt 46/72 0.029 0.025
2Mt:3Mt 46/72 −0.078 −0.263
2Mt:4Mt 45/71 −0.125 −0.261
2Mt:5Mt 46/70 −0.207 −0.138
3Mt:4Mt 45/73 −0.179 −0.086
3Mt:5Mt 46/72 −0.194 −0.010
4Mt:5Mt 45/71 −0.052 0.104

Mc = metacarpal

Mt = metatarsal

F = Female

M = Male

Results from unpaired t tests, two-tailed:

*

= 0.05 > p > 0.01;

**

= 0.01 > p > 0.001