. Author manuscript; available in PMC: 2016 Mar 9.

Published in final edited form as: Twin Res Hum Genet. 2013 Apr 8;16(3):670–678. doi: 10.1017/thg.2013.21

TABLE 7.

Correlations Between SF-12 MCS and PCS in Different Age Groups^a

		Correlations in different age groups (95% CI)

		20–34	35–54	55–71
Genetic correlation (r_g)	Males	0.23 (−0.14 to 0.79)	0.06 (−0.16 to 0.32)	0.45 (0.23 to 0.70)
	Females	0.07 (−0.13 to 0.33)	0.25 (0.07 to 0.45)	0.26 (−0.01 to 0.56)
Unique environmental correlation (r_e)	Males	−0.29 (−0.35 to −0.22)	−0.12 (−0.18 to −0.06)	−0.08 (−0.25 to 0.05)
	Females	−0.32 (−0.37 to −0.26)	−0.14 (−0.20 to −0.09)	0.00 (−0.10 to 0.11)

Note:

The common environmental effect was fixed at 0 when estimating the correlations.