Medical and Infectious Complications Associated with Pyelonephritis among Pregnant Women at Delivery

Table 1

Demographic data at the time of delivery in hospital discharges among women with pyelonephritis compared to women without pyelonephritis, Nationwide Inpatient Sample years 2008–2010 (12,628,746 deliveries).

	Pyelo; 𝑛 = 26,397	No Pyelo; 𝑛 = 12,602,349	OR (95% CI)	𝑃 value
Race/ethnicity, 𝑛 (%)
Caucasian	9436 (35.7)	5,561,876 (44.1)	1.0	—
African American	3948 (14.9)	1,507,268 (12.0)	1.5 (1.5, 1.6)	<0.0001
Hispanic	7644 (29.0)	2,418,562 (19.2)	1.9 (1.8, 1.9)	<0.0001
Other	1738 (6.6)	1,161,608 (9.2)	0.9 (0.8, 0.9)	<0.0001
Missing	3634 (13.8)	1,953,036 (15.5)	—	—
Age, yrsa,e	24.9±14.5	27.6±13.7	—	<0.0001
Private insurance, 𝑛 (%)^e	7421 (28.1)	6,252,591 (49.6)	0.4 (0.4, 0.4)	<0.0001
Median house income in ZIP code of lowest quartile, 𝑛 (%)d,e	9192 (34.8)	3,331,368 (26.4)	1.5 (1.5, 1.5)	<0.0001
LOS, daysb,e	3 (2, 4)	2 (2, 3)	—	<0.0001^c
Total charges, $^b,e	11,175 (7030, 19,174)	10,000 (6785, 15,090)	—	<0.0001^c

aValues are mean ± SD.
^bValues are median (quartile).
^cWilcoxon rank sum.
^dMedian house income in ZIP code of lowest quartile defined as median income in subject’s ZIP code $1–$38,999.
^eThe numbers of missing variables for each demographic descriptor are listed as follows for women with and without pyelonephritis, respectively: age (10 [0.04%] and 13,490 [0.1%]), insurance status (50 [0.2%] and 17,975 [0.1%]), house income status (475 [1.8%] and 253,740 [2.0%]), LOS (0 [0%] and 430 [0.003%]), and total charges (630 [2.4%] and 288,585 [2.3%]).