Table 1.

Different characteristics between PMCS and NMCS.

	PMCS (n = 37)	NMCS (n = 41)	P
Age	48.27 ± 7.21	46.72 ± 5.90	.461
BMI	23.87 ± 3.81	22.58 ± 3.47	.637
Sex
Male	17	24
Female	20	17	.364
Side
Left	14	20
Right	23	21	.368
Diabetes
Yes	4	8	.356
No	33	33
Hypertension
Yes	7	6
No	30	35	.763
Smoking
Yes	10	17
No	27	24	.235