Table 1.

Demographics of the study sample at T2, split by genotype.

Variable	S-allele carriers	L-allele homozygotes	Test-statistic	P-value
Participants	524	147
Covariates
Amsterdam location	47.9%	46.9%	χ =0.01	.91
Male gender	59.2%	51.0%	χ =2.79	.10
Age in years (SD)	17.17 (3.21)	17.77 (3.44)	F=3.89	.05
Parents’ years of education (SD)	11.8 (2.44)	12.11 (2.42)	F=2.40	.12
Stress Z-score (SD)	0.02 (1.01)	−0.08 (0.96)	F=1.08	.30
Stressful live events (SD)	2.08 (1.54)	2.12 (1.53)	F=0.08	.77
Long-term difficulties (SD)	1.27 (1.45)	1.07 (1.41)	F=2.22	.14
Internalizing Z-score at T2 (SD)	0.01 (1.00)	−0.03 (1.00)	F=0.13	.72