Table 2.

Demographic Associations with BDNF Levels.

		Acute CSF			Acute Serum				Chronic Serum
			n	p		n	p	6 Months	n	p	12 Months	n	p
Age, r		0.059	57	0.659	−0.089	49	0.543	−0.168	48	0.252	0.026	35	0.880
GCS, r		−0.069	57	0.606	−0.041	49	0.780	0.211	46	0.160	0.305	33	0.084
Sex, mean±STD				0.203			0.253			0.187			0.009
Male		0.17±0.07	46		153.5±41.1	43		210.2±73.9	41		201.9±80.2	29
Female		0.18±0.06	11		136.0±24.1	6		178.3±44.8	7		124.5±40.7	6
Education, r		0.144	52	0.309	−0.250	42	0.110	−0.009	47	0.947	−0.065	35	0.711
Antidepressants, mean±STD				-			-			0.111			0.415
No								220.0±76.2	30		196.0±81.1	23
Yes								182.4±38.4	11		188.0±81.0	10