Table 1.

Observational characteristics of the study subjects.

Variables	Control (n = 46)	CMI (n = 48)	p	CMI
				Non-SM (N = 5)	SM (N = 43)	P
Age (y)	45.0 ± 1.22	43.5 ± 2.24	0.594	42.4 ± 6.99	43.7 ± 2.44	0.858
Tonsil descent (mm)	-	9.85 ± 0.74	-	9.49 ± 0.76	12.6 ± 2.7	0.186
Syrinx length (number)	-	7.03 ± 0.46	-	-	6.88 ± 0.43	-
VI (%)	-	64.79 ± 3.25	-	-	64.24 ± 2.78	-
HB area (mm2)	2,101.32 ± 54.08	2,432.23 ± 45.52	0.066	2,380.38 ± 246.28	2,438.88 ± 42.62	0.688
PCF area (mm2)	3,476.39 ± 62.73	3,088.44 ± 41.45	<0.001	3,032.62 ± 165.03	3,095.59 ± 42.59	0.635
PCF CI (%)	66.16 ± 0.87	78.64 ± 0.80	<0.001	77.78 ± 5.19	78.75 ± 0.72	0.790
bony-PFV (ml)	158.01 ± 3.35	129.46 ± 4.84	<0.001	134.77 ± 3.39	127.36 ± 4.87	0.316
PVmax (cm/s)	8.29 ± 0.39	9.87 ± 0.51	0.016	9.14 ± 0.18	9.82 ± 0.57	0.567
NVmax (cm/s)	−7.67 ± 0.70	−10.05 ± 0.48	0.014	−9.80 ± 0.52	−9.90 ± 0.53	0.929
absMV (cm/s)	1.01 ± 0.16	0.77 ± 0.13	0.254	0.18 ± 0.12	0.86 ± 0.17	0.039
Net flow (ml)	4.05 ± 0.64	1.01 ± 0.28	0.001	0.36 ± 0.19	1.12 ± 0.30	0.209