Abstract：
OBJECTIVE:The purpose of this study was to compare how hospital rankings, based on risk-adjusted primary cesarean rates, change over time. STUDY DESIGN:Washington State Birth Events records data from 1995 through 1998 were used. Risk-adjustment models were built for each year. Risk-adjusted hospital rankings and outlier status (either "above" or "below" expected cesarean delivery rates) were calculated for each year. Hospitals that were identified as outliers for each year were compared with the use of kappa statistics. The top and bottom 25% of the hospital rank list from each year were also compared. RESULTS:The overall kappa statistic that compared outlier status over the 4 years was 0.44. The kappa statistic for the upper 25% of rankings over the 4 years was 0.42. The kappa statistic for the lowest 25% of rankings over the 4 years was 0.57. CONCLUSION:Although exact ranking may not be meaningful, outlier status, especially if repeated in multiple years may be a good marker for the identification of hospitals for further scrutiny of their quality of care.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Bailit JL,Garrett JMdoi
10.1016/j.ajog.2003.07.024subject
Has Abstractpub_date
2004-02-01 00:00:00pages
395-400issue
2eissn
0002-9378issn
1097-6868pii
S0002937803010688journal_volume
190pub_type
杂志文章abstract：:Studies on mouse sperm-egg binding and fertilization have been suggested to involve the interaction of sperm-associated beta 1-4 galactosyltransferase with egg zona pellucida glycoproteins. A population of human males, whose sperm demonstrated an inability to penetrate ovulated zona pellucida-free hamster eggs in vitr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90180-4
更新日期：1989-05-01 00:00:00
abstract：BACKGROUND:Congophilia indicates the presence of amyloid protein, which is an aggregate of misfolded proteins, that is implicated in the pathophysiologic condition of preeclampsia. Recently, urinary congophilia has been proposed as a test for the diagnosis and prediction of preeclampsia. OBJECTIVES:The purpose of this...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.04.041
更新日期：2016-10-01 00:00:00
abstract：OBJECTIVE:We sought to study neonatal outcomes in early preterm births by delivery route. STUDY DESIGN:Delivery precursors were analyzed in 4352 singleton deliveries, 24 0/7 to 31 6/7 weeks' gestation. In a subset (n = 2906) eligible for a trial of labor, neonatal mortality in attempted vaginal delivery (VD) was compa...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.06.023
更新日期：2012-08-01 00:00:00
abstract：:The effect of maternal ingestion of ethanol (0.25 gm/kg) on fetal breathing movements, gross fetal body movements, and fetal heart rate was studied in 11 healthy pregnant women at 37 to 40 weeks' gestation. Fetal breathing movements were almost abolished within 30 minutes of the alcoholic drink and remained significan...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90501-x
更新日期：1983-01-15 00:00:00
abstract：:Defined as delivery at 34(0/7)-36(6/7) weeks, late preterm births have increased by 15% between 1992 and 2002 and currently they occur in about 8% of singletons and 35% of multiple gestations. Compared with newborns at 39 weeks, late preterm births undeniably have a significantly higher rate of morbidity (respiratory ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.02.076
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVE:Our purpose was to assess pregnancy outcomes in women with chronic hypertension from a population with a perinatal mortality of 12 in 1000. STUDY DESIGN:A longitudinal cohort study was performed between 1987 and 1991 in Montreal, Quebec, Canada. RESULTS:A total of 337 pregnancies in 298 women with chronic h...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(94)90276-3
更新日期：1994-08-01 00:00:00
abstract：:Preeclampsia is a major obstetrical complication with short- and long-term life-threatening consequences for both mother and child. Shallow cytotrophoblast invasion through the uterine decidua into the spiral arteries is implicated in the pathogenesis of preeclampsia, although the cause of deficient arterial invasion ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2020.09.039
更新日期：2020-09-29 00:00:00
abstract：:Parameters of fetal growth in triplet gestations are poorly studied and controversial. A cross-sectional analysis of triplet birth weight was performed to elucidate fetal growth patterns. Birth weight and gestational age data were analyzed on 580 infants in 196 triplet sets (eight stillborn infants excluded) between 1...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90643-6
更新日期：1991-01-01 00:00:00
abstract：:Progesterone is essential for the maintenance of pregnancy. Several small trials have suggested that progesterone supplementation may reduce the risk of miscarriage in women with recurrent or threatened miscarriage. Cochrane Reviews summarized the evidence and found that the trials were small with substantial methodol...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2019.12.006
更新日期：2020-08-01 00:00:00
abstract：OBJECTIVE:Our purpose was to evaluate effects of multifetal pregnancy reduction on pregnancy complications and birth weights of remaining twin fetuses compared with expectantly managed triplets and nonreduced twins. STUDY DESIGN:Medical records of 54 triplet pregnancies, 59 twin pregnancies resulting from multifetal p...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(96)80017-2
更新日期：1996-10-01 00:00:00
abstract：OBJECTIVE:Our purpose was to compare the effects of the Burch colposuspension with those of the modified Marshall-Marchetti-Krantz urethropexy. STUDY DESIGN:Eighty women underwent the two types of operation. A full urodynamic investigation was repeated 6 months after surgery. RESULTS:Clinical follow-up continued for ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0002-9378(94)90404-9
更新日期：1994-12-01 00:00:00
abstract：OBJECTIVE:This study evaluated the role of nitric oxide in the maintenance of uterine quiescence in nonpregnant and pregnant ewes. STUDY DESIGN:Sixteen ovariectomized nonpregnant and 10 pregnant (115 days' gestation) chronically instrumented ewes were studied. Uterine contractility was assessed by electromyography and...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.105428
更新日期：2000-07-01 00:00:00
abstract：OBJECTIVES:It has recently been suggested that oxygen free radicals are involved in the high incidence of fetal dysmorphogenesis that is associated with diabetic pregnancies. The purpose of the current investigation was to study the effect of copper zinc superoxide dismutase, a free radical scavenging enzyme, on the pr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)91323-8
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to estimate the reliability and validity of an objective structured assessment of technical skills (OSATS) for midline episiotomy repair using a lifelike anatomic model. STUDY DESIGN:Eighteen residents were administered an episiotomy OSATS. Two evaluators independently completed an ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/s0002-9378(03)00812-3
更新日期：2003-11-01 00:00:00
abstract：:Serum gonadotropin, estrogen, and androgen levels were measured in samples obtained from 19 patients with polycystic ovarian disease (PCO) and from 10 normal women on day 2 to 4 of their menstrual cycles. In patients with PCO, the mean (plus or minus S.E.) concentration was significantly higher (P smaller than 0.001) ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90081-2
更新日期：1975-02-15 00:00:00
abstract：:Multifetal gestation is associated with increased frequency of maternal complications and higher perinatal morbidity and mortality. The need for contemporary data on the outcome of multifetal gestations is further underscored when selective reduction is considered. The present study details the obstetric management, n...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90407-x
更新日期：1990-02-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine the objective and subjective efficacy of transvaginal electrical stimulation for treatment of common forms of urinary incontinence in women. STUDY DESIGN:A prospective, double-blind, randomized clinical trial included 121 women with either urinary incontinence caused by detrusor ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(97)70142-x
更新日期：1997-09-01 00:00:00
abstract：OBJECTIVE:A paucity of data exists concerning the normal glycemic profile in nondiabetic pregnancies. Using a novel approach that provides continuous measurement of blood glucose, we sought to evaluate the ambulatory daily glycemic profile in the second half of pregnancy in nondiabetic women. STUDY DESIGN:Fifty-seven ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.06.059
更新日期：2004-09-01 00:00:00
abstract：:A 3-year follow-up study was carried out on 20 children examined in utero with echo-planar magnetic resonance imaging when fetal compromise had been demonstrated or was suspected. There was no demonstrable increase in the occurrence of disease or disability (including hearing deficit) that could be related to echo-pla...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(94)70379-5
更新日期：1994-01-01 00:00:00
abstract：:Previous studies in breast and bladder cancer have suggested that epidermal growth factor receptor is expressed by only a proportion of cancers and is associated with poor clinical outcome. We used a monoclonal antibody specifically reactive with the extracellular domain of the epidermal growth factor receptor to loca...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)80044-x
更新日期：1991-02-01 00:00:00
abstract：:This paper calls attention to rapidly increased use of vertical uterine incision and future consequences: impaired uterus, uterine rupture, and iatrogenic premature delivery. In addition, by making a vertical uterine incision we are not gaining much in the size of uterine entrance since the size of the vertical uterin...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(85)90541-1
更新日期：1985-08-15 00:00:00
abstract：:Twin-twin transfusion syndrome associated with acute polyhydramnios in one sac and severe oligohydramnios in the other, which characteristically is diagnosed between 18 and 28 weeks, is associated with a high mortality rate for the involved twins. Patients who are managed without intervention have essentially 100% per...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90618-h
更新日期：1990-11-01 00:00:00
abstract：OBJECTIVE:Women with chronic hypertension are at increased risk for superimposed preeclampsia. We developed a prediction algorithm for superimposed preeclampsia using clinical and laboratory information that were measured early in pregnancy. STUDY DESIGN:A secondary analysis of data that were collected from 110 women ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.03.029
更新日期：2004-11-01 00:00:00
abstract：OBJECTIVE:Several recent reports have demonstrated the expression of luteinizing hormone-releasing hormone receptors by human ovarian and endometrial cancers. Controversy persists on the relevance of this finding, in particular whether these receptors mediate direct antiproliferative effects of luteinizing hormone-rele...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.119633
更新日期：2002-02-01 00:00:00
abstract：OBJECTIVE:We characterized US women's preferred and usual sources of reproductive health care. STUDY DESIGN:Data were drawn from the Women's Health Care Experiences and Preferences Study, an Internet survey of 1078 women aged 18-55 years randomly sampled from a national probability panel. We described and compared wom...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2015.04.025
更新日期：2015-09-01 00:00:00
abstract：OBJECTIVE:We report four cases of neonatal alloimmune thrombocytopenia (NATP) in pregnancies achieved with in vitro fertilization. STUDY DESIGN:Three cases used surrogate carriers, and the fourth a donor egg. Sera from gestational carriers were tested for platelet antibodies by flow cytometry and enzyme-linked immunos...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.09.006
更新日期：2005-02-01 00:00:00
abstract：:In 27 pregnant subjects (21 treated women and six control subjects), the effect of L-dopa (500 to 1,000 mg orally) on vascular sensitivity to angiotensin II amide (Hypertensin, Ciba) was examined in 16 of these women, 1,000 mg of L-dopa resulted in a significant decrease in vascular responsiveness to angiotensin, i.e....
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90202-7
更新日期：1981-07-15 00:00:00
abstract：:Presented is a scheme by which an index of high-risk pregnancy can be evaluated. The proposed scheme is applied to a risk index developed for the purpose of illustration. The usefulness of risk indices (or any other predictive measure) can be judged in clear statistical terms. The illustrative model developed here beh...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90537-3
更新日期：1982-07-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to test whether ultrasound-measured fetal adrenal gland volume (AGV) and fetal zone enlargement (FZE) predicts preterm birth (PTB) better than cervical length (CL). STUDY DESIGN:Three-dimensional and 2-dimensional ultrasound were used prospectively to measure fetal AGV, FZE, an...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.11.034
更新日期：2011-04-01 00:00:00
abstract：:Congenital cytomegalovirus (CMV) is the most common viral infection, affecting nearly 40,000 infants each year in the United States. Of seronegative women, 1-4% will acquire a primary infection during pregnancy, and the majority of these women will be asymptomatic. Prior maternal exposure to CMV does not preclude neon...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2016.02.042
更新日期：2016-06-01 00:00:00
