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Objective The random urine protein-to-creatinine ratio (UPCR) is a screening test used for predicting clinically significant proteinuria (urine protein ≥ 300 mg) during pregnancy. No consensus exists on the optimal random UPCR cutoff for performing follow-up 24 hour urine (24H) total protein collection. We aim to evaluate the test performance of random UPCR in predicting proteinuria in a contemporary cohort. Study Design This was a retrospective cohort study of pregnant patients at our institution from 2014 to 2018 with a random UPCR and follow-up 24H protein collection. The primary analysis estimated the test characteristics (sensitivity, specificity, positive and negative predictive values) of using random UPCR for the detection of proteinuria defined as urine protein ≥300 mg on 24H protein collection. UPCR cutoffs from 0.10 to 0.30 mg/dL were evaluated, receiver operator characteristic (ROC) curve was constructed, and area under the curve (AUC) was determined. A secondary analysis examined the correlation between UPCR and 24H protein using least squares regression and Pearson correlation. Results Paired UPCR and 24H collection results were available for 1,120 patients. Mean gestational age at time of UPCR was 31.1 ± 5.1 weeks and 687 (61.3%) of patients had a 24H ≥300 mg. UPCR <0.10 mg/dL effectively excluded proteinuria ≥300 mg on 24H collection, while UPCR ≥0.18 mg/dL correctly classifies proteinuria with 91% sensitivity, 57% specificity, 77% positive predictive value, and 79% negative predictive value. UPCR ≥1.07 mg/dL had 100% specificity for 24 hour proteinuria. The area under ROC curve was 0.86. UPCR and 24H collection were highly correlated with a Pearson correlation coefficient of 0.85. After our institution lowered the threshold to obtain a 24H from UPCR ≥0.20 mg/dL to ≥0.10 mg/dL in May 2017, the percentage of patients meeting criteria for 24H collection increased from 57.8 to 84.4%. Conclusion The AUC and Pearson correlation suggest random UPCR is a high performance test for the prediction of proteinuria on 24H. Optimal test performance is dependent upon clinical consideration and upon the implications of the disease or condition. A random UPCR screen positive threshold of 0.18 mg/dL maximizes sensitivity to identify clinically significant proteinuria. Key Points Random urine protein to creatinine ratio is a high performance test for proteinuria. A random UPCR threshold of 0.18 mg/dL maximizes sensitivity to identify proteinuria. Optimal test performance is dependent on the disease or clinical condition. [ABSTRACT FROM AUTHOR]

Objective In the OFFSITE II randomized controlled trial, outpatient cervical ripening with a Foley catheter (CF) in nulliparous patients undergoing elective induction of labor (eIOL) shortened the time from admission to delivery. Given that patients with obesity have protracted labor and higher rates of failed IOL, we sought to determine if outpatient ripening with a CF may be even more beneficial for this high-risk group. Study Design We performed a secondary analysis of the OFFSITE II randomized controlled trial. For this analysis, all patients from the primary trial were classified by their intervention assignment (inpatient vs. outpatient) and also by their admission body mass index (BMI) class (BMI ≥ 30 and BMI < 30 kg/m 2). The primary outcome was time from labor and delivery (L&D) admission to delivery. Secondary outcomes included cesarean delivery, time from admission to hospital discharge, and rates of clinically diagnosed chorioamnionitis and endometritis. Results In patients with BMI ≥ 30, the primary outcome, time from admission to delivery, (18.0 [13.5–20.9] vs. 20.4 [16.6–31.3] hours, p = 0.01), as well as total hospitalization length (3.2 [2.5–3.3] vs. 3.4 [3.1–4.3] days, p = 0.02) were shorter in the outpatient group. There were no differences in rates of chorioamnionitis or endometritis in outpatient compared with inpatient CF. Furthermore, in those with a BMI ≥ 30, the cesarean rate was significantly lower with outpatient CF (19.4% vs. 44.7%, p = 0.03); it was not statistically different in patients with BMI < 30. Conclusion In this exploratory retrospective secondary analysis of the OFFSITE II randomized control trial, we found that in patients with BMI ≥ 30 undergoing eIOL, outpatient CF was associated with a lower time from L&D admission until delivery. This was also associated with a shorter time of total hospital duration and decreased the rate of cesarean, a benefit not detected in the overall analysis presented in the primary study. In nulliparas undergoing induction of labor, ripening with outpatient cervical Foley may even more significantly reduce labor duration, total hospital duration, and the rate of cesarean in patients with obesity. Key Points Outpatient CF was associated with a lower time from L&D admission until delivery in obese nulliparas. Outpatient CF was associated with a shorter time of total hospital duration in obese nulliparas. Outpatient CF was associated with a decreased rate of cesarean birth in obese nulliparas. [ABSTRACT FROM AUTHOR]

Objective  Despite legislation and hospital policies (present in some institutions) mandating a minimum length of stay in an effort to decrease the frequency of hospital readmissions, the effectiveness of this approach remains uncertain. We hypothesized that following cesarean delivery (CD), the rates of maternal readmission or unscheduled health care visits are lower in patients discharged on postoperative day (POD) 3 or ≥4 as compared with those discharged earlier on POD 2. Methods  This is a secondary analysis of a multicenter randomized trial comparing adjunctive azithromycin for unscheduled CD to prevent infection. Groups were compared based on the duration of hospitalization measured in days from delivery (POD 0) to day of discharge and categorized as POD 2, 3, and ≥4. The primary outcome was the composite of any maternal postpartum readmission, unscheduled clinic, or emergency room (ER) visit, within 6 weeks of delivery. Secondary outcomes included components of the primary outcome and neonatal readmissions. We excluded women with hypertensive disorders of pregnancy and infections diagnosed prior to POD 2. Results  A total of 1,391 patients were included. The rate of the primary outcome of any readmission increased with POD at discharge: 5.9% for POD 2, 9.4% for POD 3, and 10.9% for POD ≥4 group (trend for p  = 0.03). The primary outcome increased with later discharge (POD ≥4 when compared with POD 2). Among components of the composite, ER and unscheduled clinic visits, but not maternal readmissions, increased with the timing of discharge for patients discharged on POD ≥4 when compared with POD 2. Using logistic regression, discharge on POD 3 and on POD ≥4 was significantly associated with the composite (adjusted odds ratios [aOR] 2.6, 95% confidence interval [CI] [1.3–5.3]; aOR 2.9, 95% CI [1.3–6.4], respectively) compared with POD 2. Conclusion  The risk of maternal readmission composite following uncomplicated but unscheduled CD was not lower in patients discharged home on POD 3 or ≥4 compared with patients discharged earlier (POD 2). Key Points Risk of maternal readmission is higher in patients discharged on POD 3 or 4 compared with POD 2. No significant differences by the timing of discharge were observed for any neonatal readmissions. Timing of discharge should include an individualized approach with the option of discharge by POD 2. [ABSTRACT FROM AUTHOR]

To compare the frequency of postoperative surgical site infection (SSI) by type of skin preparation used for unscheduled cesarean in the setting of adjunctive azithromycin prophylaxis. Secondary analysis of a multi-center randomized controlled trial of adjunctive azithromycin (500 mg intravenous) versus placebo in women who were ≥24 weeks gestation and undergoing unscheduled cesarean (i.e. during labor or ≥4 h after membrane rupture). Type of skin preparation used was identified based on the protocol at the hospital at the time of delivery: iodine-alcohol, chlorhexidine, chlorhexidine-alcohol, or the combination of chlorhexidine-alcohol and iodine. The primary outcome of this analysis was incidence of post-operative SSI, as defined by CDC criteria. Multivariable logistic regression was applied for adjustments. All 2013 women in the primary trial were included in this analysis. Women were grouped according to type of skin preparation received: iodine-alcohol (n = 193), chlorhexidine (n = 733), chlorhexidine-alcohol (n = 656), and chlorhexidine-alcohol and iodine combined sequentially (n = 431). The unadjusted rates of wound infection ranged from 2.9% to 5.7%. Using iodine-alcohol as the referent, the adjusted odds ratios for wound SSI were 0.71 (95% CI 0.30–1.66) for chlorhexidine, 0.97 (95% CI 0.41–2.28) for chlorhexidine-alcohol, and 0.88 (95% CI 0.36–2.20) for chlorhexidine-alcohol with iodine combination. In women undergoing unscheduled cesarean delivery in a trial of adjunctive azithromycin, the type of skin preparation used did not appear to be associated with the frequency of wound SSI. [ABSTRACT FROM AUTHOR]

Objective  This study aimed to compare maternal and neonatal outcomes in women with severe preeclampsia before and after implementation of the American College of Obstetricians and Gynecologists (ACOG) taskforce hypertensive guidelines. Study Design  Single-center retrospective cohort study of women with severe preeclampsia delivering live nonanomalous singletons 23 to 34 2/7 weeks from 2013 to 2017. In 2015, the ACOG guidelines for expectant management of severe preeclampsia were implemented at our institution. Based on this, patients were categorized as preguideline (January 2013–December 2015) or postguideline adoption (January 2016–December 2017). Primary outcomes included composite maternal morbidity and composite neonatal morbidity; secondary outcomes included composite components, length of stay, birth weight, and delivery gestational age. Groups were compared with Student's t -test, Chi-square, and Wilcoxon's rank-sum tests; adjusted odds ratios (aOR; 95% confidence intervals [CIs]) were calculated. Yearly composite outcomes were compared using the Cochran–Armitage trend test. We estimated a sample size of 250 per group would provide 80% power at α  = 0.05 to detect a 50% reduction in neonatal morbidity from a baseline rate of 21.5%. Results  From 2013 to 2017, a total of 543 women with severe preeclampsia were identified: 278 (51%) preguideline and 265 (49%) postguideline. Baseline characteristics were overall similar between groups. There were no significant differences in maternal (aOR = 0.96, 95% CI: 0.6–1.41) or neonatal (aOR = 0.88, 95% CI: 0.61–1.28) composite morbidity between groups. Furthermore, there were no differences in composite maternal or neonatal morbidity over time. Conclusion  Perinatal outcomes were similar before and after implementation of severe preeclampsia management guidelines at our institution. Studies to evaluate if benefits are limited to subsets of this population, such as earlier gestational ages, are needed. Key Points Expectant management of severe preeclampsia has yet to be fully evaluated outside of trial conditions. We did not see a significant improvement in neonatal composite morbidity/mortality. We also did not see a worsened composite maternal morbidity/mortality. [ABSTRACT FROM AUTHOR]

Objective  This study aimed to assess whether patient satisfaction differs between women beginning cervical ripening in the outpatient versus inpatient setting. Study Design  We performed a planned secondary analysis evaluating patient satisfaction randomized to outpatient versus inpatient cervical ripening. In the original randomized controlled trial, low-risk parous women ≥39 weeks who required cervical ripening for induction and had reassuring fetal heart rate monitoring were included and randomized to inpatient versus outpatient ripening with a transcervical Foley's catheter. All women were then admitted to the labor ward on the following day. Patient satisfaction was evaluated using three separate surveys. The first two surveys, Six Simple Questions and Lady-X, were previously validated. The third survey used visual analog scales to assess overall pain experienced during Foley's placement, overall pain experienced during labor, how likely they would be to choose the same type of care for their next pregnancy, and how likely they would be to recommend their method of cervical ripening to friends/family. Results  From May 2016 to October 2017, 129 women were randomized (outpatient, 65; inpatient, 64). Based on survey results, there was no difference in satisfaction between outpatient and inpatient cervical ripening with transcervical Foley's catheterization, with high satisfaction in both groups. Patients in both the outpatient and inpatient groups would choose the same type of care for their next pregnancy (on a scale of 1–7, median (25th–75th percentile): 7 [7–7] vs. 7 [6–7], respectively, p  = 0.75) and would be very likely to recommend their method of induction to a friend or family member (on a scale of 0–100, 99 [80–100] vs. 99 [65–100], respectively, p  = 0.60). Conclusion  Parous women's satisfaction does not differ between inpatient and outpatient cervical ripening with transcervical Foley's catheterization. Key Points Outpatient cervical ripening may allow providers to incorporate the benefits of electively inducing women as well as decrease the time spent in the labor and delivery unit. Parous women's satisfaction does not differ between inpatient and outpatient cervical ripening with transcervical Foley. Additional prospective evaluation is warranted to further characterize patient preferences in relation to the location of cervical ripening. [ABSTRACT FROM AUTHOR]

Objective  To explore whether the effect of azithromycin (AZI) on postcesarean infections varied by the presence/absence of genital mycoplasmataceae placental colonization. Study Design  This was a single-center substudy of multicenter double-blind C/SOAP (Cesarean Section Optimal Antibiotic Prophylaxis) trial of women randomized to AZI or placebo (+cefazolin) antibiotic prophylaxis at cesarean. Chorioamnion/placenta specimens were tested for genital mycoplasmataceae colonization by polymerase chain reaction. Primary outcome was a composite of endometritis, wound infection, or other infections up to 6 weeks postpartum. Analysis was intent-to-treat; logistic regression was used to evaluate interactions between treatment assignment (AZI/placebo) and the presence/absence of mycoplasmataceae and to quantify effects of AZI in analyses stratified by the presence/absence of these microorganisms. Results  Specimens from 613 women (303 AZI and 310 placebo) were evaluated. Baseline characteristics were similar between groups, and approximately 1/3 (30.3%) had mycoplasmataceae placental/chorioamnion colonization. There was no evidence of effect modification (p interaction  = 0.79) between treatment assignment and the presence/absence of organisms. Stratified analyses showed fewer events in the AZI group in the presence (odds ratio [OR]: 0.42; 95% confidence interval [CI]: 0.17–1.01) and absence (OR: 0.49; 95% CI: 0.24–1) of mycoplasmataceae. Results were similar with endometritis/wound infections and with ureaplasmas/mycoplasmas considered separately. Conclusion  The reduction in postcesarean infection with AZI does not vary based on the presence or absence of genital mycoplasmataceae placental colonization. [ABSTRACT FROM AUTHOR]

Objective  Adding azithromycin to standard antibiotic prophylaxis for unscheduled cesarean delivery has been shown to reduce postcesarean infections. Because wound infection with ureaplasmas may not be overtly purulent, we assessed the hypothesis that azithromycin-based extended-spectrum antibiotic prophylaxis also reduces wound complications that are identified as noninfectious. Study Design  This is a secondary analysis of the C/SOAP (Cesarean Section Optimal Antibiotic Prophylaxis) randomized controlled trial, which enrolled women with singleton pregnancies ≥24 weeks who were undergoing nonelective cesarean. Women were randomized to adjunctive azithromycin or identical placebo up to 1 hour preincision. All wound complications occurring within 6 weeks were adjudicated into infection and noninfectious wound complications (seroma, hematoma, local cellulitis, and other noninfectious wound breakdown). The primary outcome for this analysis is the composite of noninfectious wound complications. Results  At a total of 14 sites, 2,013 women were randomized to adjunctive azithromycin (n  = 1,019) or placebo (n  = 994). Groups were similar at baseline. Although there was a lower rate of noninfectious wound complications in the azithromycin group compared with placebo (2.9 vs. 3.8%), this was not statistically significant (p  = 0.22). Conclusion  While adding azithromycin to usual antibiotic prophylaxis for nonelective cesarean delivery does reduce the risk of postcesarean infections, it did not significantly reduce the risk of postcesarean noninfectious wound complications. [ABSTRACT FROM AUTHOR]

Background: Sexually transmitted infections (STIs) are associated with adverse birth outcomes. Current prenatal STI screening guidelines define "risk" without explicit consideration of HIV status. Our objective was to test the hypothesis that HIV status is associated with bacterial STI in pregnant women.Methods: We designed a retrospective cohort study to identify pregnant women with HIV who delivered at our facility during 2000-2014. HIV+ women were compared to HIV- women with matching by year of delivery. Logistic regression was used to model adjusted odds of prevalent and incident STI. Prevalent STI was defined as chlamydia (CT), gonorrhea (GC), syphilis, or trichomoniasis detected on an initial prenatal screening test and incident STI as a newly positive result following a negative prenatal test.Results: The cohort included 432 women, 210 HIV+ and 222 HIV-. Most pregnant women were screened for STI (92% of HIV+ women and 74% of HIV- women). STI rates were high and particularly elevated in HIV+ women: 29% vs 18% (p=0.02), for prevalent STI and 11% vs 2% (p<0.001) for incident STI. Risk factors for prevalent STI were as follows: HIV status (aOR 3.0, CI: 1.4-6.4), Black race (aOR 2.7, 95% CI: 1.1-6.6), and more recent delivery (2007-2014 compared to 2000-2006) (aOR 2.3, CI: 1.1-4.7). HIV status was an independent risk factor for incident STI (aOR 7.2, CI: 2.1-25.0).Conclusion: Pregnant women who delivered in our center had high STI rates. Since HIV infection was independently associated with prevalent and incident STI, prenatal screening guidelines may need to incorporate HIV status as a high-risk group for repeat testing. [ABSTRACT FROM AUTHOR]

Purpose: We sought to determine if administration of antenatal corticosteroids in early preterm births (<34 weeks) is associated with an increased risk of developing neonatal hypoglycemia (<40 mg/dL) within the first 48 h of neonatal life.Materials and Methods: Retrospective cohort of all indicated singleton preterm births (23-34 weeks) in a single tertiary center from 2011 to 2014. The primary outcome was neonatal hypoglycemia (<40 mg/dL) within the first 48 h of life. The outcome was compared by antenatal corticosteroids received at any point during the gestation, within 2-7 d of delivery, and whether the patient received a partial, full, or repeat course of antenatal corticosteroids. Logistic regression was used to adjust for confounders.Results: Six hundred thirty-five patients underwent an indicated preterm birth during the study period. Six hundred and four (95%) received antenatal corticosteroids prior to delivery and 31 (5%) did not. The incidence of neonatal hypoglycemia within 48 h of life was not significantly different between those who received any antenatal corticosteroids and those who did not (23.0 versus 16.1%, adjusted odds ratio [OR] 1.3, 95%CI 0.5-3.6). Infants who received a full antenatal corticosteroid course within 2-7 d of delivery had similar incidences of hypoglycemia compared with those who received antenatal corticosteroids more than 7 d before delivery (20.4 versus 25.4%, adjusted OR 1.5, 95% confidence interval(CI) 0.8-2.9). Neonatal hypoglycemia was not increased by the number of antenatal corticosteroid doses (partial, full, or repeat course) administered. There was not a correlation between timing of antenatal corticosteroid administration before delivery, up to 250 h, and the lowest neonatal blood sugar in the first 48 h of life.Conclusion: Our findings suggest antenatal corticosteroid administration in indicated early preterm infants (<34 weeks) may not increase the risk of developing neonatal hypoglycemia within the first 48 h of life. Further studies should validate our findings. [ABSTRACT FROM AUTHOR]

Objective In full-term patients, early artificial rupture of membranes (AROMs) decreases time in labor. We assessed the impact of early AROM in preterm patients undergoing indicated induction of labor. Study Design We conducted a retrospective cohort study of all patients undergoing indicated preterm induction (23-34 weeks) at a single tertiary care center from 2011 to 2014. Early AROM was defined as<4 cmand late AROMwas defined as ≥4 cm. The primary outcomes evaluated were cesarean delivery and time in labor. Secondary outcomes were chorioamnionitis and a composite of maternal and neonatal adverse outcomes. Results Of the 149 women included, 65 (43.6%) had early AROM. Early AROM was associated with an increased time from the start of induction to delivery (25.7 ± 13.0 vs. 19.0 ± 10.3 hours, p < 0.01) and with an increase in the risk of cesarean (53.4 vs. 22.6%, adjusted odds ratio: 3.5, 95% confidence interval: 1.60-7.74). Early AROM was not associated with an increased risk of chorioamnionitis or adverse maternal or fetal outcomes. Conclusion In this observational cohort, early AROM was associated with an increased risk of cesarean. A randomized controlled trial is necessary to determine the optimal timing of AROM in preterm patients requiring delivery. [ABSTRACT FROM AUTHOR]

Objective The objective of this study was to evaluate cesarean outcomes, stratified by abdominal incision type, in women with class III obesity. Study Design We performed a retrospective cohort study of patients with class III obesity undergoing cesarean at our institution from 2010 to 2013 with singletons ≥ 34 weeks. Outcomes were compared between patients with transverse subpannicular and vertical abdominal incisions. The primary outcome was a wound composite (cellulitis, abscess, hematoma, seroma, or dehiscence). Other outcomes included transfusion, vertical hysterotomy, 5-minute Apgar < 7, and umbilical artery pH < 7.10. Results Of 423 patients, 364 had subpannicular transverse, 57 had vertical, and 2 had periumbilical transverse incisions (not analyzed). Although vertical incisions were associated with more wound complications (26.3 vs. 14.8%; p = 0.03), the difference became null after adjustment (adjusted odds ratios [aOR], 1.7; 95% confidence interval [CI], 0.7, 4.1). Vertical incisions were associated with increased risk of vertical hysterotomy (aOR 4.8; 95% CI, 2.2, 10.4), decreased risk of 5-minute Apgar < 7 (aOR, 0.06; 95% CI, 0.004, 0.9), and not statistically significantly associated with transfusion (aOR, 4.2; 95% CI, 0.9, 19.0) or umbilical artery pH < 7.1 (aOR, 0.42; 95% CI, 0.11, 1.7). Conclusions In women with class III obesity cesarean delivery via vertical abdominal incisions is associated with more maternal but less immediate neonatal complications. [ABSTRACT FROM AUTHOR]

Objective: To determine if the risk of post-cesarean wound morbidity in patients undergoing staple versus suture closure is modified by diabetic status. Methods: Secondary analysis of a randomized trial of skin closure with subcuticular 4-0 monocryl suture or surgical staples after cesarean delivery. The primary outcome was a composite of wound disruption or infection within 4–6 weeks. We compared the association between this outcome and skin closure method by diabetic status (also stratified by gestational or pregestational) using the Breslow–Day test for interaction. Results: Of 350 patients, 179 were randomized to staples and 171 to suture. Of the 67 (19.1%) diabetic patients, 35 were gestational and 32 pregestational. The incidence of composite wound morbidity in non-diabetics was 16.7% for staples and 3.6% for suture (p ≤ 0.001, RR: 4.6, 95% CI: 1.8–11.8); it was 5.7% for staples and 15.6% for sutures in diabetics (p = 0.25, RR: 0.4, 95% CI: 0.1–1.7). The corresponding Breslow–Daypvalue indicated a significant difference between diabetics and non-diabetics (p = 0.002). Stratified further by gestational and pregestational diabetes, the RRs were 0.3 (95% CI: 0.03–2.4) and 0.5 (95% CI: 0.05–5.0) compared to non-diabetics, respectively. Each diabetic sub-group was significantly different from non-diabetics (Breslow–Daypvalues for homogeneityp = 0.005 andp = 0.045, respectively). Conclusions: The use of staples compared with subcuticular suture for cesarean skin closure is associated with increased wound morbidity. While this is true for non-diabetics, further studies of diabetics are needed to evaluate for a null or opposite effect of closure type. [ABSTRACT FROM PUBLISHER]

Objective The objective of this study was to examine the relationship between positive glucose challenge test (GCT) values and perinatal outcomes stratified by maternal body mass index (BMI). Study Design Retrospective cohort of singleton gestations with a GCT performed at >20 weeks and documented BMI at entry to care. Subjects were classified by GCT level and BMI. Primary outcomes included large for gestational age (LGA), macrosomia, shoulder dystocia, and pregnancy-induced hypertension. Cochran-Armitage tests for trend and logistic regression were used to compare the GCT categories. Results A total of 14,525 women met enrollment criteria—8,521 with a GCT < 120 mg/dL and 6,004 with a GCT ≥ 120 mg/dL.When BMI < 25 kg/m2 was considered, the risks were not increased at any level of GCT for any outcome. However, for subjects with BMI ≥ 25 kg/m2, the risk of LGA for a GCT 130 to 134 mg/dL was increased, but not at GCTof 135 to 139mg/dL (p < 0.001). Similar, but nonsignificant, trends were observed for macrosomia and shoulder dystocia. Conclusion Increasing GCT is associated with adverse outcomes primarily in women with a BMI ≥ 25 kg/m2. Women with a BMI ≥ 25 kg/m2 and a GCT 135 to 140 mg/dL appear to have less risk of LGA than women with GCT 130 to 134 mg/dL, suggesting a possible effect of diagnosing and treating gestational diabetes mellitus in this group. [ABSTRACT FROM AUTHOR]

Objective: Risk factors for post-cesarean wound infection, but not disruption, are well-described in the literature. The primary objective of this study was to identify risk factors for noninfectious post-cesarean wound disruption. Methods: Secondary analysis was conducted using data from a single-center randomized controlled trial of staple versus suture skin closure in women ⩾24 weeks' gestation undergoing cesarean delivery. Wound disruption was defined as subcutaneous skin or fascial dehiscence excluding primary wound infections. Composite wound morbidity (disruption or infection) was examined as a secondary outcome. Patient demographics, medical co-morbidities, and intrapartum characteristics were evaluated as potential risk factors using multivariable logistic regression. Results: Of the 398 randomized patients, 340, including 26 with disruptions (7.6%) met inclusion criteria and were analyzed. After multivariable adjustments, African-American race (aOR 3.9, 95% Cl 1.1-13.8) and staple - as opposed to suture - wound closure (aOR 5.4, 95% Cl 1.8-16.1) remained significant risk factors for disruption; non-significant increases were observed for body mass index ⩾30 (aOR 2.1, 95% Cl 0.6-7.5), but not for diabetes mellitus (aOR 0.9, 95% Cl 0.3-2.9). Results for composite wound morbidity were similar. Conclusions: Skin closure with staples, African-American race, and considering the relatively small sample size, potentially obesity are associated with increased risk of non-infectious post-cesarean wound disruption. [ABSTRACT FROM AUTHOR]