Table 3.

Area Under the Curve (AUC) for differentiation between cases (n = 212) and controls (n = 110) using each of 1,25-diOH-VitD, 25-OH-VitD: 1,25-diOH-VitD ratio, and, of 25-OH-VitD among Saudi women with and without pregnancy complications.

Test Result Variable(s)	AUC	P value*	Range of AUC
			Lower Bound	Upper Bound
1,25-diOH-VitD	0.965	<0.001	0.947	0.983
1,25-diOH-VitD: 25-OH-VitD ratio	0.843	<0.001	0.791	0.895
25-OH-VitD	0.610	0.001	0.543	0.676

*Null hypothesis: true area = 0.5. Data shown are AUC, p values and AUC range at 95% Confidence Interval.