Table 3 Comparison of scanning laser polarimetry with variable corneal birefringence compensator parameters between subjects with type 1 diabetes mellitus and control subjects

GDx-VCC	DM1 group		Control group		p Value
GDx-VCC	Mean (SD)	95% CI	Mean (SD)	95% CI	p Value
TSNIT average (μm)	53.43 (4.40)	51.78 to 55.06	56.41 (4.39)	54.77 to 58.05	0.006*
Superior average (μm)	63.69 (6.07)	61.43 to 65.96	67.01 (7.17)	64.34 to 69.69	0.058
Inferior average (μm)	62.48 (6.75)	59.96 to 65.00	63.84 (7.70)	60.97 to 66.72	0.468
TSNIT SD (μm)	20.73 (5.27)	18.76 to 22.70	21.23 (4.27)	19.64 to 22.83	0.686
NFI score	18.57 (6.94)	15.97 to 21.16	15.93 (6.31)	13.57 to 18.29	0.069

*p<0.05.
DM1, type 1 diabetes mellitus; GDx-VCC, scanning laser polarimetry with variable corneal birefringence compensator; NFI, nerve fibre indicator, TSNIT, temporal-superior-nasal-inferior-temporal thickness.