Table 1.

Clinical and sociodemographic characteristics of patients with major depressive disorder.

	placebo + propofol	ketamine + propofol	p
n	16	11
Age (years)	59.60 (15.71)	57.34 (13.02)	0.69
Gender M/F	9/7	7/4	0.70
Unipolar/bipolar depression (n)	13/3	11/0	0.25
Treatment resistant depression (n)	13	11	0.25
MADRS score	35.44 (4.77)	36.73 (8.81)	0.62
MMSE score	27.4 (2.4)	26.7 (4.7)	0.66
Prior suicide attempts (n)	0.5 (0.9)	1.5 (1.4)	0.07
ECT parameters
Seizure threshold (mC)	119.7 (109.8)	94.40 (62.15)	0.51
Number of sessions	9.62 (4.51)	10.18 (4.42)	0.75
EEG seizure duration (s)	29.42 (12.66)	20.12 (6.82)	0.036*
Clinical seizure duration (s)	19.95 (9.74)	12.54 (3.78)	0.025*
RUL/BT	6/10	5/6	0.68

The results are given as the mean (standard deviation).

RUL, right unilateral; BT, bitemporal.

*means statistically significant.