Abstract：
OBJECTIVE:To evaluate whether there is an increased risk of cesarean delivery in women who delay childbearing into their later reproductive years, using a well-defined cohort and controlling for difference in baseline susceptibility such as complications of pregnancy and labor. METHODS:The current study included all women at least 20 years of age delivering their first child and evaluated between 1988-1991 as part of the prospective Yale Health in Pregnancy Study (N = 735). All women planned to deliver at Yale-New Haven Hospital. The study group was divided into three maternal age groups: 20-29 (N = 422), 30-34 (N = 239), and 35 and over (N = 74). Information collected included demographic characteristics, medical history, pregnancy complications, labor complications, mode of delivery, and pregnancy outcome. RESULTS:The cesarean delivery rates for the three age groups were 16.8% (71 of 422), 26.8% (64 of 239), and 32.4% (24 of 74), respectively. This trend was highly significant when evaluated with chi 2 for linear trend (P = .0002). Within groups of women with and without complications of pregnancy or labor, cesarean rates increased with maternal age. Using stepwise logistic regression to adjust simultaneously for confounding variables, adjusted odds ratios were 1.6 (95% confidence interval [CI] 0.9-2.7) for the women aged 30-34 and 2.3 (95% CI 1.1-4.8) for the 35 and older age group. CONCLUSIONS:Maternal age appears to be an independent risk factor for cesarean delivery. The reasons for this clinically important and statistically significant increased risk are unclear, but may be due to physician and patient concern over pregnancy outcome in older women.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Peipert JF,Bracken MBsubject
Has Abstractpub_date
1993-02-01 00:00:00pages
200-5issue
2eissn
0029-7844issn
1873-233Xjournal_volume
81pub_type
杂志文章abstract：BACKGROUND:Successful DNA typing after rape is limited when only a few sperm and numerous vaginal cells are recovered from a swab, resulting in an extremely unfavorable ratio of male to female DNA. The goal of this study was to develop a protocol involving sperm cell sorting with flow cytometry based on differences in ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(99)00373-7
更新日期：1999-10-01 00:00:00
abstract：OBJECTIVE:To evaluate whether there was a change in prevalence of human papillomavirus (HPV) in the United States correlated with the introduction of HPV vaccines in both vaccinated and unvaccinated women. METHODS:We performed a retrospective review of prevalence data for women aged 18-29 years living in the United St...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001760
更新日期：2016-12-01 00:00:00
abstract：OBJECTIVE:To estimate the change in survival rates of women with ovarian cancer during the past 14 years. METHODS:Women diagnosed with epithelial, germ cell, sarcomas, and sex-cord stromal ovarian tumors were identified from the Surveillance Epidemiology and End Results Database. Demographic and clinicopathologic fact...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000231680.58221.a7
更新日期：2006-09-01 00:00:00
abstract：:Combination chemotherapy has dramatically improved the results of treatment for embryonal rhabdomyosarcoma of the vagina in children, but little attention has been directed toward vaginal sarcomas in adults. This report of 17 cases of primary sarcoma of the adult vagina includes ten leiomyosarcomas, four mixed mesoder...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1985-05-01 00:00:00
abstract：OBJECTIVE:Case reports of suspected adverse pregnancy outcomes associated with prenatal exposure to angiotensin-converting enzyme inhibitors, particularly oligohydramnios, prolonged neonatal anuria, and defects of ossification of the skull dome, prompted us to examine pregnancy outcome in a large cohort of pregnant wom...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：OBJECTIVE:To evaluate the presence of fetal fibronectin in the cervix and vagina as a screening test for spontaneous preterm birth. METHODS:Two thousand nine hundred twenty-nine women at ten centers were routinely screened every 2 weeks from 22-24 to 30 weeks for cervical and vaginal fetal fibronectin. A positive test...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/0029-7844(96)00035-x
更新日期：1996-05-01 00:00:00
abstract：:Two hundred thirteen women with abnormal glucose tolerance tests (GTTs) were diagnosed over 9 years by a screening program involving the total antenatal population. Each subject was matched for age, parity, and ethnic group with a control. The gestational diabetics were subdivided into classes A1 or A2 based on the fa...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1989-09-01 00:00:00
abstract：OBJECTIVE:To assess the value of the early diastolic notch and color Doppler imaging of the uterine arteries at 24 weeks' gestation in a two-stage Doppler screening test for preeclampsia. METHODS:Two thousand fifty-eight unselected women had an initial screening study with continuous-wave Doppler at 18-22 weeks' gesta...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：:The authors report on the incidence of translocations detected among 300 Greek couples referred for cytogenetic investigation because of repeated abortion, stillbirth, and/or the birth of children with multiple congenital anomalies. Translocations were detected in 16 cases, ie, 1 of 19 couples. However, the incidence ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
abstract：OBJECTIVE:To compare the surgical morbidity, postoperative course, and hospital charges of Burch colposuspension performed in conjunction with abdominal versus vaginal hysterectomy. METHODS:Power analysis indicated that 35 women would be needed in each group to detect a 20% difference in hospital charges between group...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/S0029-7844(97)00178-6
更新日期：1997-07-01 00:00:00
abstract：OBJECTIVE:Diverging findings concerning the rate of postoperative wound infections in patients undergoing breast surgery have been reported, and little is known regarding the possible risk factors for these infections and their relative importance. We assessed risk factors for wound infection, placing particular emphas...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(03)00044-9
更新日期：2003-04-01 00:00:00
abstract：OBJECTIVE:Reducing tobacco use in pregnancy is a public health priority. Brief smoking counseling during prenatal care is effective but generates modest cessation rates. Telephone counseling is an effective smoking cessation method that could offer pregnant women convenient access to more intensive smoking cessation co...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1097/01.AOG.0000218100.05601.f8
更新日期：2006-07-01 00:00:00
abstract：:The analgesic properties and motor effect of epidural 0.25% bupivacaine (8 mL) were compared with those of epidural morphine (2 mg in 10 mL saline) followed by 8 mL of 0.25% bupivacaine. The study was performed on two groups of parturients (30 in each group) in active labor. Pain relief in the morphine-bupivacaine gro...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-198602000-00009
更新日期：1986-02-01 00:00:00
abstract：OBJECTIVE:To examine risk factors for preterm delivery in women who present to nontertiary care hospitals with preterm contractions. METHODS:Women who presented to a network of community hospitals in Wisconsin with preterm contractions were followed until delivery. The main outcomes were preterm delivery before comple...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(98)00108-2
更新日期：1998-07-01 00:00:00
abstract：:A preliminary report is made of 11 patients of childbearing age treated for symptomatic uterine prolapse by a suspension technic employing straps of external oblique aponeurosis according to the method of Williams and Richardson. In a relatively short period of follow-up, the operative results have been excellent in a...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1967-08-01 00:00:00
abstract：OBJECTIVE:To report our experience with essential thrombocythemia complicating pregnancy. METHODS:Over a 5-year period, we studied 21 women of reproductive age affected by essential thrombocythemia. Diagnoses were based on previously published Polycythemia Vera Study Group criteria. RESULTS:Five of our 21 patients be...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-199406000-00002
更新日期：1994-06-01 00:00:00
abstract：BACKGROUND:Bernard-Soulier syndrome, a lack of glycoprotein IB/IX, is a rare autosomal recessive bleeding disorder characterized by platelet dysfunction. Women with Bernard-Soulier syndrome are at risk of being immunized against glycoprotein IB/IX, leading to severe isoimmune neonatal thrombocytopenia. CASE:A 26-year-...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(99)00253-7
更新日期：1999-11-01 00:00:00
abstract：OBJECTIVE:To evaluate whether preeclampsia is associated with risk of maternal retinal disease in the decades after pregnancy. METHODS:We carried out a longitudinal cohort study of 1,108,541 women who delivered neonates in any hospital in Quebec, Canada, between 1989 and 2013. We tracked women for later hospitalizatio...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001758
更新日期：2017-01-01 00:00:00
abstract：:A case of meconium peritonitis that was diagnosed ultrasonographically in the early third trimester in a patient with acute polyhydramnios is presented. The pathophysiologic progression of this condition is demonstrated by serial ultrasound examinations. Neonatal radiologic confirmation of the diagnosis is also presen...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1984-12-01 00:00:00
abstract：:Hemoperitoneum was identified by culdocentesis in a 26-year-old woman suffering acute abdominal pain. A pregnancy test was positive. Operation indicated a ruptured ovarian pregnancy, and histologic examination revealed primary intrafollicular ovarian pregnancy in a cystic teratoma. Ovarian pregnancy in an ovarian tumo...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-198409001-00014
更新日期：1984-09-01 00:00:00
abstract：:The safety of pregnancy after myocardial infarction remains a significant dilemma for both the obstetrician and the cardiologist. Only 20 cases of pregnancy after myocardial infarction have been reported. To clarify this problem, we add our experience of four such cases in which conception occurred 9 months to 9 years...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1991-06-01 00:00:00
abstract：:Cell-mediated immunity was tested by coincubation of target cell line (2043) of human squamous cell carcinoma and peripheral blood leukocytes (PBL) of 22 patients with squamous cell neoplasia of the uterine cervix, 9 patients with other tumors, and 9 normal females. The percentage of cell reduction in mild dysplasia w...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1980-06-01 00:00:00
abstract：OBJECTIVE:To assess the risks of congenital varicella syndrome and other birth defects in offspring of women who inadvertently received varicella vaccine during pregnancy or within 3 months of conception. METHODS:Pregnant women inadvertently exposed to varicella vaccine, reported voluntarily, were enrolled in the Preg...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(01)01384-9
更新日期：2001-07-01 00:00:00
abstract：:Ureaplasma urealyticum is a common inhabitant of the lower genital tract of women. It is unclear whether or not the microorganism plays a role in provoking spontaneous abortion. Reported is a U urealyticum infection of placenta and amniotic fluid in an immunologically competent host resulting in abruptio placentae and...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1986-08-01 00:00:00
abstract：OBJECTIVE:To assess treatment outcomes associated with an obstetric hypertensive emergency quality improvement intervention instituted in a tertiary care women's emergency department. METHODS:We conducted a cohort study of pregnant (20 weeks of gestation or greater) and postpartum (6 weeks of gestation or less) women ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000002809
更新日期：2018-10-01 00:00:00
abstract：:Slips of the tongue are common and often amusing phonic errors. Although surely not the first speaker to make such transpositions, W.A. Spooner (1844-1930) was well known for them and was the source of the eponym, "Spoonerism." Several of his noted slips are presented along with a whimsical obstetric presentation. ...
journal_title：Obstetrics and gynecology
pub_type： 传,历史文章,杂志文章
doi：10.1016/s0029-7844(97)00146-4
更新日期：1997-06-01 00:00:00
abstract：OBJECTIVE:To quantify preferences for female providers among obstetric-gynecology patients in a large military teaching hospital in California. METHODS:A questionnaire regarding patient preferences for female provider was distributed to and collected from 1,544 obstetric-gynecology patients over a two-month period. Re...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000156297.25395.e4
更新日期：2005-04-01 00:00:00
abstract：:To determine whether amnio-polymerase chain reaction (amnio-PCR) can replace conventional cytogenetic study for confirming the karyotype of fetuses in women with positive biochemical screening for fetal Down syndrome. To check the accuracy of this technique in our laboratory, we first compared the amnio-PCR results wi...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(03)00222-9
更新日期：2003-05-01 00:00:00
abstract：OBJECTIVE:To estimate if there were dietary or socioeconomic factors associated with preterm premature rupture of membranes (PROM). METHODS:In this case-control study, women with preterm PROM (n = 46) were compared with healthy pregnant women matched for gestational age and vitamin supplementation. Measurements includ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(02)02380-3
更新日期：2002-12-01 00:00:00
abstract：:A 64-year-old woman with a 45,X karyotype and Turner's syndrome and recent onset of right lower quadrant pain was found to have a mucinous cystadenoma with focal areas of borderline malignancy and a typical Brenner tumor in the right adnexa. Ovarian tumors in patients with a 45,X karyotype and Turner's syndrome are ex...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-11-01 00:00:00
