Table 3.

Best-fit models that including genetic and gestational variables, early postnatal exposure, personality, and cortisol response

	post1	post2	post3	post4	post5	post6
Intercept	−0.950	−1.824	−1.599	−0.897	−0.664	−1.552
	(1.165)	(1.126)	(1.144)	(1.181)	(1.17)	(1.162)
log(age at end)	0.298	0.335a	0.307	0.295	0.278	0.306
	(0.164)	(0.162)	(0.164)	(0.166)	(0.164)	(0.166)
5HTT	−0.53b	−0.59b	−0.523b	−0.525b	−0.542b	−0.517b
	(0.185)	(0.186)	(0.185)	(0.185)	(0.184)	(0.185)
MAOA	0.080	−0.059	0.091	0.076	0.124	0.087
	(0.254)	(0.257)	(0.255)	(0.254)	(0.254)	(0.255)
Sex	−0.284	−0.272	−0.273	−0.284	−0.267	−0.272
	(0.236)	(0.232)	(0.236)	(0.236)	(0.235)	(0.236)
Gestation location	−1.323c	−0.933c	−0.981c	−1.321c	−1.333c	−0.984c
	(0.367)	(0.224)	(0.226)	(0.367)	(0.366)	(0.227)
No. of locations	−0.564c	—	—	−0.560c	−0.560c	—
	(0.159)			(0.159)	(0.159)
No. of relocations	—	—	−0.479	—	—	−0.476c
			(0.141)			(0.141)
Time (d) in hospital	—	−0.713	—	—	—	—
	—	(0.467)	—	—	—	—
Rearing location	0.407a	0.316	0.401a	0.398a	0.498a	0.394a
	(0.192)	(0.192)	(0.191)	(0.198)	(0.202)	(0.197)
Nervous	0.345b	0.350b	0.340b	0.361c	0.327a	0.361c
	(0.119)	(0.118)	(0.118)	(0.084)	(0.139)	(0.084)
Gentle	—	—	—	−0.037	—	−0.041
	—	—	—	(0.196)	—	(0.195)
ACTH stimulation	−0.001	0	−0.001	−0.001	—	−0.001
	(0.001)	(0.001)	(0.001)	(0.001)	—	(0.001)
Cortisol sample 2 (evening, day 1)	—	—	—	—	−0.003	—
	—	—	—	—	(0.002)	—
5HTT × sex	0.639a	0.694a	0.620a	0.635a	0.632a	0.615a
	(0.278)	(0.28)	(0.278)	(0.279)	(0.279)	(0.279)
MAOA × sex	−0.675a	−0.570a	−0.693a	−0.671a	−0.717a	−0.688a
	(0.310)	(0.313)	(0.313)	(0.31)	(0.316)	(0.313)
Gestation location × sex	0.722b	0.691a	0.689a	0.731b	0.710a	0.693a
	(0.278)	(0.275)	(0.276)	(0.282)	(0.283)	(0.28)
Gestation location × MAOA	0.749a	0.869b	0.744a	0.750a	0.709a	0.744a
	(0.298)	(0.300)	(0.300)	(0.298)	(0.298)	(0.300)
Gestation location × no. of locations	0.383	—	—	0.379	0.383	—
	(0.218)			(0.218)	(0.217)
Gestation location × no. of relocations	—	—	0.443b	—	—	0.441b
			(0.157)			(0.157)
Gestation location × time (d) in hospital	—	0.689	—	—	—	—
		(0.467)
Rearing location × nervous	−0.738c	−0.679c	−0.749c	−0.719c	−0.716c	−0.725c
	(0.162)	(0.154)	(0.162)	(0.152)	(0.166)	(0.152)
Nervous × ACTH stimulation	0	0	0	—	—	—
	(0.001)	(0.001)	(0.001)
Nervous × cortisol sample 2	—	—	—	—	0.001	—
					(0.002)
Gentle × ACTH stimulation	—	—	—	0	—	0
				(0.002)		(0.002)
AIC value and weight	712.19	713.7	713.75	714.42	715.54	716.03
	0.37	0.17	0.17	0.12	0.07	0.05

5HTT, presence of serotonin transporter gene short allele; MAOA, presence of monoamine oxidase A low-expression gene

Data are presented as β coefficients (SE) such that 0.0 indicates no difference associated with that variable. See Figure 2 for complete description of variables.

^aP < 0.05

^bP < 0.01

^cP < 0.001