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Correlation of Two Fitness-related Variables With Psychological Femininity in Female Twins, for Entire Sample and the Reproductive Fitness (Over 50) Subsample
| Number of children born | Age at first pregnancy | |||||
|---|---|---|---|---|---|---|
| r | N | p | r | N | p | |
| Australian | ||||||
| Entire sample | .05 | 3789 | .003 | .01 | 2985 | .63 |
| Over 50 | .04 | 442 | .34 | .01 | 388 | .83 |
| Dutch | ||||||
| Entire sample | –.01 | 1404 | .82 | .18 | 718 | .00 |
| Over 50 | –.15 | 177 | .04 | .13 | 156 | .10 |
| US | ||||||
| Entire sample | .04 | 7483 | <.001 | |||
| Over 50 | –.03 | 2109 | .16 | |||
Note: p = probability (two-tailed)
