Table 2.

The linear regression analysis of different glucose homeostasis and prostate volume

	n	β (95%CI)	P value	Model β (95%CI)a	P value	n	β (95%CI)	P value	Model b β (95%CI)	P value	n	β (95%CI)	P value	Model β (95%CI)b	P value
		Total				Age < 70					Age ≥ 70
TPV
Normal	257	Ref		Ref		125	Ref		Ref		132	Ref		Ref
Pre-diabetic	245	8.34 (2.95, 13.73)	0.002	5.89 (0.47, 11.30)	0.033	96	11.46 (4.59, 18.32)	0.001	11.36 (4.73, 18.00)	0.001	149	4.38 (-3.45, 12.22)	0.272	2.70 (-5.35, 10.73)	0.511
Diabetic	157	18.33 (12.21, 24.44)	0.000	13.56 (7.21, 19.91)	0.000	50	18.53 (10.06, 27.00)	0.000	16.13 (7.62, 24.65)	0.000	107	15.14 (6.62, 23.67)	0.001	11.53 (2.55, 20.51)	0.012
TZV
Normal	257	Ref		Ref		125	Ref		Ref		132	Ref		Ref
Pre-diabetic	245	7.57 (3.01, 12.13)	0.001	5.05 (0.49, 9.61)	0.030	96	10.03 (4.07, 15.99)	0.001	10.06 (4.31, 15.81)	0.001	149	4.12 (-2.41, 10.64)	0.215	2.18 (-4.51, 8.86)	0.522
Diabetic	157	15.35 (10.18, 20.51)	0.000	11.11 (5.76, 16.47)	0.000	50	16.48 (9.13, 23.82)	0.000	14.52 (7.14, 21.90)	0.000	107	11.85 (4.76, 18.95)	0.001	8.62 (1.15, 16.08)	0.024
TZI
Normal	257	Ref		Ref		125	Ref		Ref		132	Ref		Ref
Pre-diabetic	245	0.05 (0.02, 0.07)	0.000	0.03 (0.01, 0.06)	0.016	96	0.07 (0.03, 0.11)	0.001	0.07 (0.03, 0.11)	0.001	149	0.02 (-0.01, 0.05)	0.192	0.01 (-0.03, 0.04)	0.756
Diabetic	157	0.07 (0.04, 0.10)	0.000	0.05 (0.02, 0.08)	0.001	50	0.10 (0.05, 0.15)	0.000	0.10 (0.05, 0.15)	0.000	107	0.03 (-0.00, 0.07)	0.081	0.02 (-0.02, 0.05)	0.399

^aThe model was adjusted by age, body mass index, total testosterone, total cholesterol, triglyceride, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol

^bThe model was adjusted by body mass index, total testosterone, total cholesterol, triglyceride, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol