Table 3. Correlation of sorbitol levels with other clinical variables.

Variables	Correlation coefficient values
	Nondiabetic	Diabetes without retinopathy	Diabetic retinopathy
Age	0.067	−0.033	−0.146
Glucose	0.087	0.012	−0.047
Duration	—	−0.208	−0.015
HbA1C	0.047	0.297	0.130

Correlation of sorbitol levels with age, glucose, diabetes duration, and glycosylated hemoglobin (HbA1C) in different groups indicate that all these correlates are not significant with sorbitol levels at p>0.05.