Table 3.

LII measurements in millimeters (mm) at T0 and T1 for each group

		# of Arches	Mean (SD)	Median	Min–Max	p-value*
T0
	Control Total	10	5.77 (1.57)	5.80	3.70–8.80	0.1572
	Upper	3	5.20 (1.30)	5.90	3.70–6.00
	Lower	7	6.01 (1.70)	5.70	4.20–3.70
	PBM Total	18	7.27 (2.99)	6.32	3.72–14.58	0.1572
	Upper	10	7.91 (3.41)	6.59	4.36–14.58
	Lower	8	6.48 (2.33)	6.06	3.72–10.60
T1
	Control Total	10	0.33 (0.38)	0.25	0.00–1.00	0.3293
	Upper	3	0.33 (0.58)	0.00	0.00–1.00
	Lower	7	0.33 (0.33)	0.50	0.00–0.80
	PBM Total	18	0.47 (0.41)	0.58	0.00–1.17	0.3293
	Upper	10	0.44 (0.39)	0.60	0.00–0.99
	Lower	8	0.50 (0.46)	0.55	0.00–1.17

*p-value based on two-tailed Mann-Whitney U. A p-value cutoff of 0.05 is used to determine significance