Table 2.

Mean differences in symptom scores for three common mental disorder (CMD) scales (PHQ-9, GAD-7, and PCL-C), comparing baseline to last session¹, baseline to follow-up, and last session¹ to follow-up for participants assessed at all three time points

CMD Scale	N	Measurement interval: assessment time points	Mean difference	s.e.	p
PHQ-9 Major depressive disorder	56	From baseline to last session	5.64	0.68	<0.001
		From baseline to follow-up	8.34	0.61	<0.001
		From last session to follow-up	2.70	0.57	<0.001
GAD-7 Generalized anxiety disorder	47	From baseline to last session	5.36	0.68	<0.001
		From baseline to follow-up	6.34	0.75	<0.001
		From last session to follow-up	0.98	0.55	0.08
PCL-C Posttraumatic stress disorder	40	From baseline to last session	14.33	1.88	<0.001
		From baseline to follow-up	16.25	2.43	<0.001
		From last session to follow-up	1.93	2.06	0.36