Table 3.

Craniomandibular Index (CMI) (Observed Means and Standard Deviations by Treatment Group and Follow-up Interval)

Treatment Groups	Baseline before Treatment, Mean Scores	3 Mos Post-trt.	6 Mos Post-trt.	12 Mos Post-trt.	18 Mos Post-trt.	24 Mos Post-trt.	60 Mos Intention- to-Treat	60 Mos Treatment Received
Medical Management (MM)
Number with data	n = 29	n = 29	n = 26	n = 28	n = 24	n = 26	n = 27	n = 27
Mean score and (SD)	0.44 (0.16)	0.31 (0.17)	0.24 (0.16)	0.19 (0.13)	0.16 (0.11)	0.19 (0.14)	0.20 (0.17)	0.20 (0.17)
Rehabilitation (NS)
Number with data	n = 24	n = 22	n = 21	n = 22	n = 22	n = 20	n = 23	n = 21
Mean Score and (SD)	0.45 (0.13)	0.26 (0.12)	0.23 (0.13)	0.19 (0.14)	0.19 (0.16)	0.16 (0.15)	0.20 (0.14)	0.19 (0.14)
Arthroscopic Surgery (AS)
Number with data	n = 25	n = 23	n = 21	n = 23	n = 20	n = 22	n = 24	n = 22
Mean Score and (SD)	0.44 (0.12)	0.25 (0.15)	0.24 (0.13)	0.23 (0.15)	0.20 (0.16)	0.23 (0.17)	0.21 (0.15)	0.22 (0.15)
Arthroplasty Surgery (AR)
Number with data	n = 26	n = 20	n = 19	n = 19	n = 20	n = 20	n = 24	n = 20
Mean Score and (SD)	0.44 (0.12)	0.25 (0.12)	0.22 (0.14)	0.16 (0.08)	0.19 (0.13)	0.17 (0.10)	0.23 (0.16)	0.22 (0.15)
P-value for between-group difference	p = 0.99	p = 0.33	p = 0.95	p = 0.37	p = 0.79	p = 0.50	p = 0.86	p = 0.92
P-value for within-group improvement from baseline	NA	p < 0.0001 all groups	p < 0.0001 all groups	p < 0.0001 all groups	p < 0.0001 all groups	p < 0.0001 all groups	p < 0.0001 all groups	p < 0.0001 all groups