Table 3.

Scores for pain, quality of life, difficulty with activities of daily living (ADLs) and patient health questionnaire-9 (PHQ-9) before and after commencing ketamine.

	n	Mean	SD	Min.	Max.	P-value	% Change
Pain score
Pre-Ketamine	73	8.82	1.25	6	10
Post-Ketamine	73	5.15	2.09	1	9	<0.0001	−41.61
Quality of life
Pre-Ketamine	72	3.88	2.35	0	9
Post-Ketamine	73	6.31	2.03	2	10	<0.0001	+62.63
Difficulty with ADLs
Pre-Ketamine	71	3.08	0.98	1	4
Post-Ketamine	69	2.26	0.9	1	4	<0.0001	−26.62
PHQ-9
Pre-Ketamine	73	15.07	6.45	0	27
Post-Ketamine	73	9.97	5.42	1	21	<0.0001	−33.84

N, number of participants; SD, standard deviation.