Table 2. Results of linear regression coefficient and FMM classes (n = 2,641).

Variables	OLS		Class I		Class II		Class III
	Coef. (95% CI)	P-value	Coef. (95% CI)	P-value	Coef. (95% CI)	P-value	Coef. (95% CI)	P-value
Age	0.25 (0.20,0.30)	<0.001	0.07 (0.3,0.11)	0.001	0.20 (0.04,0.36)	0.016	0.52 (0.36,0.68)	<0.001
Male	5.24 (3.56,6.91)	<0.001	3.66 (1.95,5.36)	<0.001	8.91 (6.30,11.53)	<0.001	0.02 (-6.24,6.27)	0.995
Vitamin D supplement	7.90 (2.88,12.93)	0.002	20.39 (16.26,24.52)	<0.001	-12.49 (-19.94,-5.04)	0.001	16.62 (4.01,29.23)	0.010
Daily sun exposure	0.006 (-0.01,0.02)	0.512	-0.01 (-0.02,0.03)	0.589	0.04 (0.01,0.07)	0.019	- 0.07 (-0.14,0.01)	0.097
Milk consumption	0.37 (0.11,0.64)	0.006	0.34 (0.15,0.54)	0.001	0.49 (0.11,0.87)	0.012	0.01 (-0.96,0.98)	0.984
Waist circumference	- 0.07 (-0.11,-0.02)	0.006	- 0.01 (-0.6,0.03)	0.607	- 0.07 (-0.12,-0.02)	0.009	- 0.16 (-0.30,-0.3)	0.017
BMI	0.01 (-0.11,0.14)	0.846	-0.03 (-0.14,0.09)	0.647	-0.04 (-0.09,0.02)	0.184	0.45 (0.22,0.68)	<0.001
Current smoker	-0.22 (-3.06,2.63)	0.882	- 0.19 (-2.36,1.98)	0.866	- 5.28 (-9.06,-1.51)	0.006	15.19 (0.67,29.72)	0.040
HbA1c	0.82 (0.26,1.38)	0.004	0.42 (-0.27,1.12)	0.233	1.04 (0.28,1.79)	0.007	0.15 (-2.11,2.40)	0.899
Intense sport	2.73 (-0.25,5.71)	0.073	0.45 (-1.62,2.52)	0.669	0.37 (-4.01,4.75)	0.867	12.96 (1.64,24.28)	0.025
Constant	20.50 (16.04,24.96)	<0.001	15.18 (26.53,65.35)	<0.001	21.68 (15.57,27.80)	<0.001	35.41 (18.43,52.38)	<0.001