Table 1:

The results of mixed model analysis

Response variable		Fixed effect coefficients (estimate±SE)
Response variable		Intercept	GAi (weeks)	GAd (weeks)	BW (kg)	GAd:BW	BWtile	Uterine volume change
Placenta	T2* change	15.4±2.3, p=0.0004	−0.004±0.002 p=0.1	−0.39±0.05, p=0.0004	4.28±0.73, p=0.001	0.11±0.02, p=0.0009	-	-
	T2* change	15.6±2.2, p=0.0009	−0.007±0.003 p=0.08	−0.39±0.05, p=0.0009	4.52±0.75, p=0.0017	0.11±0.02, p=0.0015	-	0.67±0.6, p=0.31
	T2* change	0.14±0.23, p=0.55	−0.002±0.007 p=0.77	-	-	-	0.0015±0.001 p=0.22	-
	T2* change	0.32±0.29, p=0.29	−0.003±0.007 p=0.63	-	-	-	0.0002±0.001p=0.9	−1.1±1.05 p=0.33
Fetal Brain	T2* change	0.21±6.4, p=0.97	0.002±0.007 p=0.75	−0.007±0.16 p=0.96	0.079±2.06 p=0.97	0.002±0.05 p=0.96	-	-
	T2* change	0.33±6.99 p=0.96	0.001±0.01 p=0.92	−0.004±0.17 p=0.98	−0.22±2.3 p=0.92	0.005±0.05 p=0.93		−0.4±1.89 p=0.84
	T2* change	0.015±0.19 p=0.93	0.002±0.005 p=0.69	-	-	-	0.0003±0.001 p=0.72	-
	T2* change	0.037±0.26 p=0.88	0.002±0.006 p=0.73	-	-	-	0.0001±0.001 p=0.9	−0.13±0.94 p=0.89
Fetal Liver	T2* change	−6.46±7.67 p=0.43	0.001±0.008 p=0.87	0.16±0.19 p=0.44	2.24±2.47 p=0.39	0.05±0.06 p=0.42	-	-
	T2* change	−6.16±8.25 p=0.48	−0.002±0.011 p=0.87	0.16±0.2 p=0.46	1.88±2.76 p=0.52	0.047±0.06 p=0.51	-	1.03±2.24 p=0.66
	T2* change	0.1±0.24 p=0.67	−0.003±0.007 p=0.77	-	-	-	0.001±0.001 p=0.31	-
	T2* change	0.21±0.32p=0.53	−0.003±0.008 p=0.7	-	-	-	0.0005±0.002 p=0.79	0.64±1.19 p=0.6