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. 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 3.

Interclass Correlation Coefficients (95% CI) for SF-12 MCS

Age groups
Zygosity and sex 20–34 35–54 55–71
MZ males 0.276 (0.189–0.363) 0.260 (0.175–0.345) 0.389 (0.281–0.497)
MZ females 0.380 (0.319–0.442) 0.267 (0.195–0.338) 0.396 (0.287–0.506)
ssDZ males 0.185 (0.087–0.283) 0.177 (0.098–0.256) 0.119 (0.005–0.233)
ssDZ females 0.097 (0.009–0.185) 0.237 (0.173–0.300) 0.188 (0.082–0.295)
osDZ 0.099 (0.015–0.170) 0.128 (0.071–0.186) 0.193 (0.115–0.271)