Table 2. Parameter estimates, −2 log likelihoods, and significance tests in the GxE models.

	σsnp	βsnp	σIBD	βIBD	σe	βe	−2ll	Δ−df	Likelihood ratio
AP moderated by age
Full moderation	0.32	0.096	0.62	−0.002	0.73	0.054	17 830.78	—	—
Drop βsnp	0.32	—	0.61	−0.003	0.74	0.054	17 831.78	1	1
Drop βIBD and βsnp	0.32		0.61		0.74	0.053	17 831.82	1	0.04
Drop βIBD, βsnp, and βe	0.32		0.62		0.73		17 859.96	1	28.14
AnxDep moderated by age
Full moderation	0.27	−0.2	0.63	0.03	0.76	−0.005	18 977.33	—	—
Drop βsnp	0.31		0.63	0.03	0.76	−0.004	18 978.76	1	1.43
Drop βIBD and βsnp	0.31	—	0.63	—	0.76	0.012	18 981.273	1	2.51
Drop βIBD, βsnp, and βe	—	—	0.64	—	0.77	—	18 982.684	1	1.39
BMI moderated by age
Full moderation	0.62	0.048	0.8	0.045	0.48	0.124	16 480.76
Drop βsnp	0.61		0.8	0.043	0.5	0.125	16 482.06	1	1.3
Drop βIBD and βsnp	0.61		0.78		0.52	0.148	16 491.55	1	9.5
Drop βIBD, βsnp, and βe	0.61	—	0.82	—	0.48		16 684.9	1	193.35
Height moderated by birth year
Full moderation	0.53	0.047	0.69	0.005	0.21	0.02	11 132.06	—	—
Drop βsnp	0.53	—	0.69	0.003	0.21	0.02	11 134.03	1	1.97
Drop βIBD and βsnp	0.52	—	0.69	—	0.21	0.02	11 134.29	1	0.26
Drop βIBD, βsnp, and βe	0.53	—	0.68	—	0.21	—	11 154.57	1	20.28

β indicates magnitude of change, given a SD change in the moderator.