Table 3.

Association of FSH with FPG and HbA1c: linear regression

Dependent variables	Standardized β	P value	R 2
Log FPG (model 1)	−0.138	<0.001	0.11
Log FPG (model 2)	−0.152	<0.001	0.11
Log FPG (model 3)	−0.092	0.007	0.31
Log FPG (model 4)	−0.087	0.011	0.31
Log HbA1c (model 1)	−0.138	<0.001	0.03
Log HbA1c (model 2)	−0.135	0.001	0.03
Log HbA1c (model 3)	−0.091	0.022	0.06
Log HbA1c (model 4)	−0.097	0.014	0.09

R ² represented the coefficient of determination

Since FPG and HbA1c were non-normally distributed, they were log-transformed

Model 1 included terms for age, residence area, economic development and luteinizing hormone

Model 2 included terms for model 1 and E2

Model 3 included terms for model 2, waist circumference and HOMA-IR

Model 4 was a fully adjusted model including all covariates in model 3, metabolic factors [low-density lipoprotein, high-density lipoprotein, triglycerides and systolic blood pressure] and current smoker

FPG fasting plasma glucose, HbA1c glycated hemoglobin