The Relationship between Diabetic Neuropathy and Sleep Apnea Syndrome: A Meta-Analysis

Table 2

Univariate meta-regression analysis of risk of SAS related to study characteristics*.

Variable	Coefficient	SE	𝑃 value
Mean age ≥ 60 years	−1.16	0.33	0.04
BMI ≥ 30 kg/m^2	0.21	0.80	0.81
Asian population	−0.65	0.74	0.44
DN diagnosis**
Autonomic and peripheral	0.13	1.12	0.92
Autonomic only	2.14	1.72	0.34
High study quality***	0.53	0.77	0.54

∗Logarithm of odds ratio for SAS was a dependent variable, and each variable was entered as an explanatory variable.
**Peripheral only was referent.
***Quality score ≥ 4 was regarded as high study quality.
Abbreviation: SE: standard error.