TABLE 2.

Changes in bone mineral density according to baseline dietary fiber and PGS at 24 mo¹

	Low dietary fiber (<12.1 g/d)					High dietary fiber (≥12.1 g/d)
	Tertile 1	Tertile 2	Tertile 3	β (SE)	P	Tertile 1	Tertile 2	Tertile 3	β (SE)	P	P-interaction
Spine BMD, g/cm2	0.006 ± 0.027	0.007 ± 0.045	0.002 ± 0.035	0.004 (0.003)	0.136	−0.002 ± 0.039	0.012 ± 0.039	0.001 ± 0.039	0.002 (0.003)	0.473	0.358
Femoral hip BMD, g/cm2	−0.020 ± 0.029	−0.005 ± 0.033	−0.016 ± 0.030	0.000 (0.002)	0.833	−0.027 ± 0.034	−0.014 ± 0.025	−0.010 ± 0.029	0.004 (0.002)	0.059	0.087
Whole-body BMD, g/cm2	0.005 ± 0.025	0.011 ± 0.031	−0.005 ± 0.021	−0.002 (0.002)	0.417	−0.005 ± 0.028	0.002 ± 0.027	0.002 ± 0.035	0.002 (0.002)	0.346	0.049

¹Values are means ± SDs unless otherwise indicated. P values were adjusted for age, sex, race, diet group, BMI, physical activity, concurrent weight change, baseline dietary calcium intake, and baseline value for the respective outcome. General linear models (PROC GLM) were used for the analyses. BMD, bone mineral density; PGS, polygenic score.