BMC Psychiatry

Table 1 Spearman’s correlation coefficients between SLC6A4 methylation as well as age at onset and potentially confounding variables

From: Factors related to age at depression onset: the role of SLC6A4 methylation, sex, exposure to stressful life events and personality in a sample of inpatients suffering from major depression

		SLC6A4 factor 1	SLC6A4 factor 2	age at onset
Age	r	0.41	0.21	0.60
Age	p	0.000	0.019	0.000
BMI	r	0.13	0.15	0.21
BMI	p	0.159	0.105	0.012
alcohol (grams/day)	r	0.01	0.01	0.07
alcohol (grams/day)	p	0.904	0.931	0.415
cigarettes/day	r	−0.05	−0.17	−0.04
cigarettes/day	p	0.604	0.052	0.660
DE antidepressants	r	−0.14	0.10	0.13
DE antidepressants	p	0.165	0.324	0.149
DE neuroleptics	r	0.05	−0.14	0.05
DE neuroleptics	p	0.623	0.110	0.585

DE dose equivalents. Spearman’s correlation coefficients. P-values not FDR corrected

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ISSN: 1471-244X

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