HAM-A Total score	Participants before biofeedback N	Participants moved to <17 after biofeedback N (%)	Participants moved to 18-24 after biofeedback N (%)	Participants moved to 25-30 after biofeedback N (%)	Participants moved to >30 after biofeedback N (%)
<17	23	23 (100)	0 (0)	0 (0)	0 (0)
18-24	14	10 (71.43)	4 (28.57)	0 (0)	0 (0)
25-30	14	10 (71.43)	4 (28.57)	0 (0)	0 (0)
>30	34	20 (58.82)	6 (17.65)	5 (14.71)	3 (8.82)
SAS Total anxiety index score	Participants before biofeedback N	Participants moved to <45 after biofeedback N (%)	Participants moved to 45-59 after biofeedback N (%)	Participants moved to 60-74 after biofeedback N (%)	Participants moved to >75 after biofeedback N (%)
<45	0		0 (0)	0 (0)	0 (0)
45-59	36	33 (91.67)	3 (8.33)	0 (0)	0 (0)
60-74	18	10 (55.56)	8 (44.44)	0 (0)	0 (0)
>75	31	15 (48.39)	12 (38.71)	4 (12.90)	0 (0)