TABLE 2.

Demographic and clinical characteristics of the study population.

Variables	Controls	Patients	p
Number	11	21
Age (years)
Mean ± SD	58.2 ± 5.5	56.8 ± 8.8	0.109
Sex
Female	5 (45.5%)	13 (61.9%)	0.302
Male	6 (54.5%)	8 (38.1%)
Weight (kg) Mean ± SD	60.0 ± 8.01	60.1 ± 10.4	0.337
Height (m) Mean ± SD	1.60 ± 0.05	1.62 ± 0.06	0.685
BMI	23.3 ± 2.4	22.8 ± 2.9	0.849
Hypertension
Negative	9 (81.8%)	11 (52.4%)	0.104
Positive	2 (18.2%)	10 (47.6%)
FPG (mmol/L)	4.55 ± 0.52	7.47 ± 2.49	0.001

Data are represented as number (percentage) or mean ± standard deviation (SD). Patients are diabetic retinopathy patients. Student’s t test for quantitative variables and chi-square test for qualitative data were applied. BMI, body mass index; FPG, fasting plasma glucose.