Table 2.

Response rates in depression symptoms in patients with major depressive disorder following intravenous ketamine or placebo

Depression score	Trial	Control	p-value
Before intervention	35.16 ± 8.13	32.51 ± 5.66	0.14
One hours	14.90 ± 10.09	29.77 ± 4.56	< 0.001
Four hours	9.83 ± 11.13	28.03 ± 3.74	< 0.001
One day	11.16 ± 11.75	28.61 ± 3.87	< 0.001
Three day	10.41 ± 13.89	28.67 ± 3.53	< 0.001
One week	11.32 ± 13.43	29.38 ± 4.42	< 0.001
One month	15.38 ± 13.27	29.48 ± 4.21	< 0.001
Two month	17.09 ± 13.45	28.70 ± 3.58	< 0.001