Table 1.

Descriptive statistics of women undergoing hysterectomy.

Variable	Category	With VWD (n = 545)	Without VWD (n = 1 357 588)	P-value*
Age, mean (IQR)		40.58	46.75	<0.001
		34–46	39–52
Race, n (%)	White	364	692 576	<0.001
		66.79	51.05
	Black	17	121 045
		3.12	8.92
	Hispanic	16	68 663
		2.94	5.06
	Other	10	38 817
		1.83	2.86
	Race missing	138	436 496
		25.32	32.15
Annual income (%)†
<$36 000		51.01	64.03	<0.001
$36 000–$45 000		25.32	19.60
> $45 000		18.17	9.54

VWD, von Willebrand disease; IQR, interquartile range.

^*Two-sample T-test for age, otherwise chi square test.

^†Based on median income in ZIP code of residence.