Table 3.

Diffusion tensor tractography. Linear regression models of the relationship between minimum and maximum glucose (mmol/L) on each day of life and diffusion tensor tractography metrics, including fractional anisotropy (FA) and mean diffusivity (MD). All models are adjusted for postmenstrual age at time of MRI, 5-minute Apgar scores, and umbilical artery pH. Minimum glucose models adjust for maximum glucose, and vice versa. Standardized beta coefficients (β) are included. Significant sharpened q-values are marked with an asterisk.

	FA	β	q-value	MD (10−5 mm2/s)	β	q-value
Corticospinal tract
Minimum glucose day 1	0.0044	0.17	0.10	−1.83	−0.23	0.08
Maximum glucose day 1	−0.0003	−0.03	0.60	0.74	−0.26	0.02*
Optic radiation
Minimum glucose day 1	0.0043	0.15	0.11	−0.10	0.01	0.30
Maximum glucose day 1	−0.0017	−0.17	0.12	−1.67	−0.37	0.001*
Corticospinal tract
Minimum glucose day 2	0.0046	0.28	0.10	−1.66	−0.33	0.10
Maximum glucose day 2	−0.0041	−0.49	0.008*	0.42	0.16	0.43
Optic radiation
Minimum glucose day 2	0.0068	0.37	0.08	−4.60	−0.57	0.02*
Maximum glucose day 2	−0.0067	−0.69	0.001*	0.85	0.20	0.26
Corticospinal tract
Minimum glucose day 3	0.0013	0.07	0.24	−1.08	−0.17	0.17
Maximum glucose day 3	−0.0014	−0.13	0.47	−0.23	−0.07	0.60
Optic radiation
Minimum glucose day 3	0.0075	0.34	0.10	−3.80	−0.39	0.09
Maximum glucose day 3	−0.0068	−0.54	0.008*	0.31	−0.06	0.60