Mulubrhan F. Mogos

Obstructive sleep apnea and severe maternal-infant morbidity/mortality in the United States, 1998-2009.

STUDY OBJECTIVES A recent trend in increasing rates of severe maternal morbidity and mortality despite quality improvements has been noted. The goal of this study is to estimate the national prevalence of obstructive sleep apnea (OSA) in pregnant women and examine associations between OSA and pregnancy-related morbidities, including in-hospital maternal mortality. DESIGN A retrospective, cross-sectional analysis. SETTING A nationally representative sample of maternal hospital discharges from 1998-2009. PATIENTS OR PARTICIPANTS The analytic sample included 55,781,965 pregnancy-related inpatient hospital discharges. INTERVENTIONS N/A. MEASUREMENTS AND RESULTS The Nationwide Inpatient Sample (NIS) database was used to identify hospital stays for women who were pregnant or gave birth. Among these women, we determined length of hospital stay, in-hospital mortality, and used International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes to identify OSA and other outcome measures. Multivariable logistic regression modeling was used to calculate adjusted odds ratios (OR) and 95% confidence intervals (CI) for the associations between OSA and each outcome. The overall rate of OSA was 3.0 per 10,000; however, the rate climbed substantially from 0.7 in 1998 to 7.3 in 2009, with an average annual increase of 24%. After controlling for obesity and other potential confounders, OSA was associated with increased odds of pregnancy-related morbidities including preeclampsia (OR, 2.5; 95% CI, 2.2-2.9), eclampsia (OR, 5.4; 95% CI, 3.3-8.9), cardiomyopathy (OR, 9.0; 95% CI, 7.5-10.9), and pulmonary embolism (OR, 4.5; 95% CI, 2.3-8.9). Women with OSA experienced a more than fivefold increased odds of in-hospital mortality (95% CI, 2.4-11.5). The adverse effects of OSA on selected outcomes were exacerbated by obesity. CONCLUSIONS Obstructive sleep apnea is associated with severe maternal morbidity, cardiovascular morbidity, and in-hospital death. Targeted interventions may improve pregnancy outcomes in this group.

Maternal Opioid Drug Use during Pregnancy and Its Impact on Perinatal Morbidity, Mortality, and the Costs of Medical Care in the United States

Objective. To identify factors associated with opioid use during pregnancy and to compare perinatal morbidity, mortality, and healthcare costs between opioid users and nonusers. Methods. We conducted a cross-sectional analysis of pregnancy-related discharges from 1998 to 2009 using the largest publicly available all-payer inpatient database in the United States. We scanned ICD-9-CM codes for opioid use and perinatal outcomes. Costs of care were estimated from hospital charges. Survey logistic regression was used to assess the association between maternal opioid use and each outcome; generalized linear modeling was used to compare hospitalization costs by opioid use status. Results. Women who used opioids during pregnancy experienced higher rates of depression, anxiety, and chronic medical conditions. After adjusting for confounders, opioid use was associated with increased odds of threatened preterm labor, early onset delivery, poor fetal growth, and stillbirth. Users were four times as likely to have a prolonged hospital stay and were almost four times more likely to die before discharge. The mean per-hospitalization cost of a woman who used opioids during pregnancy was

National trends of adnexal surgeries at the time of hysterectomy for benign indication, United States, 1998-2011

5,616 (95% CI:

Perinatal outcomes and hospital costs in gastroschisis based on gestational age at delivery.

5,166–

National trends in maternal use of opioid drugs among pregnancy-related hospitalizations in the United States, 1998 to 2009

6,067), compared to

The Feto-Maternal Health Cost of Intimate Partner Violence Among Delivery-Related Discharges in the United States, 2002-2009

4,084 (95% CI:

Additive effects of Pre‐pregnancy body mass index and gestational diabetes on health outcomes and costs

4,002–

Hospitalizations and healthcare costs associated with serious, non-lethal firearm-related violence and injuries in the United States, 1998‐2011

4,166) for nonusers. Conclusion. Opioid use during pregnancy is associated with adverse perinatal outcomes and increased healthcare costs.

Small size for gestational age and the risk for infant mortality in the subsequent pregnancy.

OBJECTIVE We sought to investigate the most recent national trends of bilateral salpingectomy (BS) and bilateral salpingo-oophorectomy (BSO) at the time of hysterectomy performed for benign indications. STUDY DESIGN We conducted a national cross-sectional analysis of all inpatient discharges for women aged ≥18 years who underwent a hysterectomy for benign indications from 1998 through 2011 using the largest publicly available all-payer inpatient database in the United States. We scanned International Classification of Diseases, Ninth Revision codes for an indication of specific bilateral adnexal surgeries, including BSO and BS. Joinpoint regression was used to characterize and estimate 14-year national trends in performing BSO and BS at the time of hysterectomy for benign indications, overall and in population subgroups. RESULTS During the study period, there were approximately 428,523 inpatient hysterectomy procedures performed annually for benign indications. Of these, >53% had no adnexal surgery performed during the same hospitalization, whereas 43.7% and 1.3% of those discharges had BSO and BS procedures, respectively. The rate of BSO was directly correlated with increasing age for patients <65 years. Conversely, we observed an inverse relationship between BS and patient age, with the BS rate among women aged <25 years twice that of women aged ≥45 years. From 1998 through 2001, there was a 2.2% increase in the rate of BSO per year (95% confidence interval, 0.4-4.0); however, this was followed by a consistent 3.6% (95% confidence interval, -4.0 to -3.3) annual decline in the BSO rate, from 49.7% in 2001 to 33.4% in 2011. National rates of BS among women undergoing hysterectomy for benign indications increased significantly throughout the study period, with an estimated 8% annual increase from 1998 through 2008, followed by a sharp 24% increase annually during the last 4 years of the study period. The BS rate nearly quadrupled in 14 years. CONCLUSION The type of adnexal surgery performed concomitantly with hysterectomy for benign indications has undergone a significant shift since 2001. Significantly more BS and less BSO procedures are being performed among gynecologic surgeons in the United States.

Recent trends in placenta accreta in the United States and its impact on maternal–fetal morbidity and healthcare-associated costs, 1998–2011

OBJECTIVE: To investigate the association between gestational age at delivery and perinatal outcomes among gastroschisis-affected pregnancies that result in live birth. METHODS: We conducted a retrospective cohort study using a linked maternal–infant database for more than 2.3 million liveborn neonates in Florida from 1998 to 2009. Cases were identified using a combination of International Classification of Diseases, 9th Edition, Clinical Modification, diagnosis and procedure codes indicative of gastroschisis. We restricted our analyses to singleton cases without another major birth defect or medical conditions that would justify early elective delivery. We categorized cases based on gestational age in weeks and compared perinatal outcomes. RESULTS: Among 1,005 neonates with gastroschisis, 324 (32.3%) were isolated, singleton cases without an additional indication for early delivery. We observed decreased rates of adverse pregnancy outcomes among those neonates delivered in the early term period (37–38 weeks of gestation) compared with preterm (less than 34 weeks of gestation); specifically, jaundice (18.5% compared with 42.3%, P=.01) and respiratory distress syndrome (5.9% compared with 23.1%, P⩽.01). As the gestational age at birth increased, we observed fewer mean number of days spent in the hospital (less than 34 weeks of gestation: 55.9, P<.01; 34–36 weeks of gestation: 51.9, P=.02; 37–38 weeks of gestation: 36.9 [reference]) and lower direct inpatient medical costs (in thousands, U.S. dollars; less than 34 weeks of gestation: 79, P=.01; 34–36 weeks of gestation: 71, P=.04; 37–38 weeks of gestation: 51 [reference]) per infant in the first year of life. CONCLUSION: In pregnancies complicated by gastroschisis, and with no other known major indications, birth at early term or later term gestation, when compared with delivery before 37 weeks of gestation, is associated with improved perinatal outcomes and lower medical costs. LEVEL OF EVIDENCE: II