Azithromycin in the Treatment of Preterm Prelabor Rupture of Membranes Demonstrates a Lower Risk of Chorioamnionitis and Postpartum Endometritis with an Equivalent Latency Period Compared with Erythromycin Antibiotic Regimens

Table 1

Maternal demographics.

Characteristic	Azithromycin group	Erythromycin group
Maternal age (years)	(20-43)	(18-47)
Advanced maternal age	49 (35)	45 (27)	0.104^δ
Gestational age at diagnosis	(25-33)	(26-33)	0.380
Nulliparous	108 (76.1)	110 (65.5)	0.042^δ
BMI (kg/m^2)	(21-48.9)	(20.8-43.9)	0.282
Pregestational diabetes	15 (10.6)	20 (11.9)	0.153^δ
Group β-streptococcus positive	28 (19.7)	38 (22.6)	0.534^δ
Hypertensive disorders in pregnancy	29 (20.4)	41 (24.4)	0.403^δ
Race
White	60 (42.3)	74 (44)	0.832^δ
Asian	30 (21.1)	31 (18.5)	0.555^δ
Hispanic	37 (26.7)	51 (30.4)	0.486^δ
Black	14 (9.9)	13 (7.1)	0.509^δ

Data are presented as deviation (range) or n (%). ^δStatistics performed using test. Statistics performed using Welch two-sample -test.