Table 3.

Correlation analysis between suicidal scores and plasma levels of BDNF in depressed patients with suicidal ideation at the indicated times.

Variables		Reduction in SSI-part 1 scores			Reduction in scores on item 10 of the MADRS			Reduction in scores on item 3 of the HAMD
		At 1 day	At 13 days	At 26 days	At 1 day	At 13 days	At 26 days	At 1 day	At 13 days	At 26 days
Change in plasma levels of BDNF (ng/ml)	r	−0.037	−0.032	0.165	−0.136	−0.011	0.041	−0.121	0.049	0.069
	p	0.810	0.836	0.285	0.379	0.943	0.792	0.433	0.752	0.659
Variables		SSI-part 1 scores			Scores on item 10 of the MADRS			Scores on item 3 of the HAMD
		At 1 day	At 13 days	At 26 days	At 1 day	At 13 days	At 26 days	At 1 day	At 13 days	At 26 days
Plasma levels of BDNF at baseline (ng/ml)	r	0.010	0.001	0.046	0.123	−0.045	−0.076	0.072	−0.011	0.024
	p	0.939	0.997	0.733	0.360	0.740	0.576	0.596	0.936	0.862

BDNF, brain-derived neurotrophic factor; HAMD, Hamilton Depression Rating Scale; MADRS, Montgomery–Åsberg Depression Rating Scale; r, Pearson coefficient of correlation; SSI, Beck’s Scale for Suicide Ideation.