Relationship between Metabolic Syndrome and Ocular Microcirculation Shown by Laser Speckle Flowgraphy in a Hospital Setting Devoted to Sleep Apnea Syndrome Diagnostics

Table 7

Results of a single-regression analysis and multiple-regression analysis for factors independently contributing to MBR-Tissue (temporal).

Explanatory variables	Single regression		Multiple regression
			Standard regression	value
Age	−0.10	0.39
Men = 1, women = 0	−0.07	0.53
BMI	−0.17	0.15
Spherical refraction	0.01	0.90
IOP	0.06	0.59
OPP	−0.14	0.22
Heart rate	−0.25	0.03	−0.20	−1.87	0.07
Mean IMT	−0.28	0.01	−0.22	−2.03	0.046
e’ velocity	0.11	0.33
E/e’ ratio	−0.17	0.14
Total cholesterol	0.01	0.96
LDL-C	−0.01	0.92
HOMA-IR	−0.08	0.48
Hematocrit	−0.05	0.70
Creatinine	0.14	0.22
MetS components (0, 1, 2, and 3)	−0.40	0.0004	−0.31	−2.84	0.006

Objective variables: MBR-tissue (temporal); , . . MBR: mean blur rate: blowout score; BMI: body mass index; IOP: intraocular pressure; OPP: ocular perfusion pressure; IMT: intima-media thickness; LDL-C: low-density lipoprotein cholesterol; HOMA-IR: homeostasis model assessment of insulin resistance; MetS: metabolic syndrome. The correlation coefficient did not show more than 0.6 among the all explanatory variables.