Table 1.

Demographics of the NTG and control groups.

Variable	NTG (n = 76)	Control (n = 42)	p valuea
Age, years (mean ± SD)	59.11 ± 11.33	56.83 ± 12.66	0.319
Sex ratio (Male:Female)	1.3 (43 : 33)	2.0 (28 : 14)	0.284
Diabetes mellitus, n (%)	16 (21.1%)	8 (19.0%)	0.796
Hypertension, n (%)	21 (27.6%)	16 (38.1%)	0.241

^aComparison of two groups using independent t-test or chi-square test.