Skip to main content
. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Twin Res Hum Genet. 2013 Aug 8;16(5):970–976. doi: 10.1017/thg.2013.51

Table 3.

Smoking composite model fit statistics and variance component estimates with 95% confidence intervals for ACE and nested AE and CE models.

Model EP df −2LL AIC Δ χ 2 Δdf P VA VC VE
ACEa 7 1623 2594.27 −651.73 --- --- --- .43
(.20-.69)		 .39
(.15-.60)		 .18
(.13-.24)
AE 6 1624 2603.25 −644.75 8.98 1 <.01 .83
(.78-.87)		 --- .17
(.13-.22)
CE 6 1624 2608.73 −639.27 14.45 1 <.01 --- .74
(.68-.79)		 .26
(.21-.32)
a

Threshold values: Males thresholds: t1: .25, t2: .54; Female thresholds: t1: .48, t2: .43