Table 2. Comparisons of N/C ratios and MIECA values assessed by impression cytology and confocal microscopy between SS patients and control subjects.

	Impression cytology		Confocal microscopy
Squamous metaplasia parameter	Dry eye	Control	Dry eye	Control
MIECA (μm)	945±574*	329±102	880±508*	378±119
N/C ratio	0.34±0.10*	0.45±0.05	0.34±0.11*	0.47±0.06
MIECA, mean individual epithelial cell area; N/C, nucleocytoplasmic

*p< 0.0001