Table 3. Prediction of verbal episodic memory outcome scores from age, gender and 5-HTTLPR genotype.

Test	Predictor	B	s.e.	T	P	95% CI
						Lower	Upper
RAVLT trial 1 recall N=431	Age	−0.05	0.01	−4.32	<0.001	−0.08	−0.03
	5-HTTLPR	0.13	0.22	0.59	0.80	−0.30	0.56
	Gender	−0.62	0.18	−3.39	<0.01	−0.97	−0.26
	Age × 5-HTTLPR	−0.01	0.03	−0.40	0.68	−0.07	0.05
	Age × gender	−0.01	0.03	−0.55	0.59	−0.06	0.03
	5-HTTLPR × gender	−0.03	0.45	−0.06	0.95	−0.91	0.86
	Age × 5-HTTLPR × gender	0.05	0.06	0.87	0.39	−0.07	0.17
RAVLT total score N=431	Age	−0.34	0.06	−6.11	<0.001	−0.45	−0.23
	5-HTTLPR	0.92	0.89	1.04	0.30	−0.80	2.64
	Gender	−4.94	0.85	−5.82	<0.001	−6.61	−3.27
	Age × 5-HTTLPR	−0.01	0.13	0.08	0.94	−0.26	0.24
	Age × gender	−0.11	0.12	−0.91	0.36	−0.36	0.13
	5-HTTLPR × gender	−2.91	1.95	−1.49	0.14	−6.75	0.93
	Age × 5-HTTLPR × gender	0.60	0.27	2.18	0.03	0.06	1.14
RAVLT delayed recall N=431	Age	−0.08	0.02	−4.09	<0.001	−0.11	−0.04
	5-HTTLPR	0.35	0.29	1.21	0.23	−0.22	0.92
	Gender	−1.29	0.28	−4.55	<0.001	−1.84	−0.73
	Age × 5-HTTLPR	−0.02	0.04	0.39	0.70	−0.06	0.10
	Age × gender	−0.06	0.04	−1.45	0.15	−0.14	0.02
	5-HTTLPR × gender	−0.31	0.66	−0.47	0.63	−1.62	0.93
	Age × 5-HTTLPR × gender	0.15	0.09	1.64	0.10	−0.03	0.33

Abbreviations: B, standardized beta coefficient; CI, confidence interval; P, probability; RAVLT, Rey Auditory Verbal Learning Test.

Bold values signify P-values <0.05.