Abstract：
:Most pregnancies in women under age 20 years, as well as more than half of the pregnancies in the United States, are unintended. Contraceptive use is especially poor in adolescents, for whom the socioeconomic and educational consequences are great. A 1988 study indicated that more than 8% of sexually active adolescents had two or more sexual partners within the previous 3 months, higher than any other age group. The reasons why adolescents do not use contraception effectively fall into two categories: lack of access to contraceptive information and noncompliance with contraceptive recommendations. Studies have demonstrated that educational programs incorporating decision-making and communication skills, self-esteem enhancement, and peer influence can result in a decrease in the rate of adolescent sexual activity and pregnancy. Knowledge-based programs alone do not correlate with postponement of sexual activity or the use of contraceptives. In a survey of more than 4000 sex education teachers, 80% replied that they are in need of "factual information, materials, and strategies. In a true/false examination given to educators on contraception, few correct answers were recorded regarding potential side effects of oral contraceptives. Effective counseling and communication with adolescents require an understanding of adolescent development.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Davis AJdoi
10.1016/s0002-9378(94)05023-4subject
Has Abstractpub_date
1994-05-01 00:00:00pages
1581-5issue
5 Pt 2eissn
0002-9378issn
1097-6868pii
a54625journal_volume
170pub_type
杂志文章,评审abstract：:SAA and SIA were assayed in the sera of 172 infertile couples and in the CM of the women and 18 control subjects. Complete infertility evaluation was performed in all subjects except the controls. Results of these studies were correlated with PCT's. Sperm antibodies were detected in the CM of 25.6% of infertile women ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1980-04-01 00:00:00
abstract：:One hundred ninety-nine female patients with candidal vulvovaginitis were included in an open, randomized, mycologically controlled study carried out at three Dutch gynecologic clinics to determine the efficacy and tolerability of a single vaginal tablet containing 500 mg clotrimazole in comparison with a 6-day treatm...
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(85)80008-9
更新日期：1985-08-01 00:00:00
abstract：:Different perspectives toward symptoms of urogenital aging exist among postmenopausal women, influenced by social and cultural factors, but one constant is that women rarely feel able to discuss urogenital problems freely--with their physicians, husbands, or friends. European women >55 years old were brought up to pri...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/s0002-9378(98)70556-3
更新日期：1998-05-01 00:00:00
abstract：:Estradiol and progesterone receptors in the myometrium, decidua, placenta, chorion, and amnion of eight women who underwent elective cesarean section at term were determined by means of an exchange assay. The hormone levels in the peripheral plasma and cytosol of these tissues were measured by radioimmunoassays. Mater...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(84)90428-9
更新日期：1984-11-01 00:00:00
abstract：:Clostridium sordellii is a common soil and enteric bacterium that is infrequently recovered from the vagina. We describe three women in which C. sordellii caused puerperal infection and a distinctive and lethal toxic shock-like syndrome. Patients were less than 1 week post partum and each had a single, limited focus o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90768-0
更新日期：1989-10-01 00:00:00
abstract：OBJECTIVE:This study was to evaluate the predictive value of the uterine cervix tissue with the use of quantitative ultrasound gray level analysis for preterm delivery. STUDY DESIGN:Sixty-eight patients with preterm labor between 20 and 35 weeks of gestation were included. When two-dimensional transvaginal ultrasound ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/s0002-9378(03)00488-5
更新日期：2003-08-01 00:00:00
abstract：OBJECTIVE:This study compared birth parameters and the longitudinal course in physical and neurologic development between children with 2 and 3 vessel umbilical cords. STUDY DESIGN:Our study of the Collaborative Perinatal Project included singletons of at least 24 weeks' gestation with single umbilical artery at birth...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.06.031
更新日期：2010-10-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to compare the visual analyses of fetal heart rate tracings by observers according to recent National Institute of Child Health and Human Development interpretative guidelines both with each other and with those of a computerized fetal heart rate analysis and alerting system. STUDY...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.107665
更新日期：2000-08-01 00:00:00
abstract：:Among 1,613 women studied with routine ultrasonography prior to genetic amniocentesis at Northwestern University Medical School, 25 of 26 multiple gestations were detected. Sampling of fluid from both amniotic sacs was requested by 20 women with twin gestations in which both fetuses were ultrasonographically determine...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90029-0
更新日期：1980-09-15 00:00:00
abstract：OBJECTIVE:The purpose of this study was to analyze the correlation between the genetic constitution and the phenotype in triploid pregnancies. STUDY DESIGN:One hundred fifty-eight triploid pregnancies were identified in hospitals in Western Denmark from April 1986 to April 2010. Clinical data and karyotypes were colle...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.03.039
更新日期：2014-10-01 00:00:00
abstract：OBJECTIVE:Placental insufficiency is a primary cause of intrauterine growth restriction (IUGR). In our study, microarray technology was used to identify genes, which may impair placentation resulting in IUGR. STUDY DESIGN:The RNA was isolated from both IUGR term placentas and normal term placentas. Microarray experime...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2006.08.027
更新日期：2007-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to identify characteristics that are associated with seeking care for pelvic floor disorders (PFD). STUDY DESIGN:Strategies for seeking care for pelvic organ prolapse, urinary incontinence (UI), and anal incontinence (AI) were assessed in 4392 women. Women were dichotomized into...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ajog.2007.02.051
更新日期：2007-07-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to show and discuss an association between fetal inflammatory response syndrome (FIRS) and an adverse neonatal outcome defined as combined severe neonatal morbidity and mortality in preterm neonates hospitalized in our neonatal intensive care unit. STUDY DESIGN:This was an observati...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.08.030
更新日期：2013-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine risk factors for poor cognitive performance among children who are treated with in utero selective laser photocoagulation of communicating vessels for twin-twin transfusion syndrome. STUDY DESIGN:This was a prospectively enrolled cohort study. Cognitive performance ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ajog.2014.03.050
更新日期：2014-10-01 00:00:00
abstract：OBJECTIVES:This study was carried out to determine the distribution of maternal-fetal medicine (MFM) subspecialists and to profile MFM subspecialists' (1) target patient populations, (2) practice organization, (3) workloads, (4) services provided, and (5) job satisfaction. STUDY DESIGN:The membership of the Society fo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.119719
更新日期：2001-11-01 00:00:00
abstract：OBJECTIVE:Vaginal breech delivery rates have been accepted widely to be in decline and the Term Breech Trial (TBT) has recommended delivery of a breech-presenting infant by elective cesarean section delivery. Our aim was to examine the rate of vaginal delivery of term breech pregnancies in the 8 years before and after ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.03.029
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to examine the relationship between maternal obesity that is calculated 9 months after delivery and sociodemographic variables. STUDY DESIGN:A national cohort of mothers was sampled 9 months after delivery as part of the Growing Up in Ireland Study Infant Cohort. Sociodemographi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.04.020
更新日期：2013-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to elucidate the maternal-fetal transfer of bisheteroypiperazine (U-87201-E), a nonnucleoside reverse transcriptase inhibitor of human immunodeficiency virus-1. STUDY DESIGN:Placentas from normal term deliveries were used in this study to determine the maternal-fetal transfer of...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)90089-6
更新日期：1995-01-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate factors at home and work associated with antenatal morbidity (emergency department visits and hospitalizations) among employed pregnant women. STUDY DESIGN:This prospective study of 213 women included 3 antenatal interviews at about 16, 24, and 30 weeks' gestation with q...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70103-1
更新日期：1999-11-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to report on the benign gynecologic conditions occurring among women with an intact uterus at enrollment in the Breast Cancer Prevention Trial of the National Surgical Adjuvant Breast and Bowel Project. STUDY DESIGN:The incidence rates of several benign gynecologic conditions were d...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ajog.2004.12.083
更新日期：2005-04-01 00:00:00
abstract：:A transvaginal duplex Doppler ultrasonography system was used to measure blood flow characteristics in the ascending uterine artery before and during pregnancy. The system uses a 5 MHz Doppler transducer coupled to a 6.5 MHz imaging probe. There was a steady increase in volume flow rate in the left ascending uterine a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90834-t
更新日期：1990-01-01 00:00:00
abstract：:The results of predictive fertilization bioassays (hemizona assay, hamster ova-human sperm penetration assay), in vitro fertilization treatment, fertile donor cross-match tests with either sperm or oocytes, and oocyte micromanipulation for assisted fertilization were used to establish a pathophysiologic diagnosis in c...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90684-j
更新日期：1991-05-01 00:00:00
abstract：:Cystine animopeptidase (CAP) and leucine aminopeptidase (LAP) in choriocarcinoma cells grown in culture were assayed and characterized electrophoretically. The specific activity of CAP in choriocarcinoma was about 1.5-fold greater than the specific activity of term placenta. The extract of choriocarcinoma contained an...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90574-8
更新日期：1975-07-15 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate prospectively the Centers for Disease Control recommendations for the treatment of gonococcal infection in pregnancy. STUDY DESIGN:One hundred sixty-one women who were referred with probable endocervical gonorrhea underwent pretreatment endocervical, anal, and oral c...
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：10.1067/mob.2001.117662
更新日期：2001-09-01 00:00:00
abstract：:Experiments were conducted with 11 chronically catheterized fetal sheep to determine the effects of norepinephrine on the distribution of umbilical venous blood through the ductus venosus, and within the fetal liver. An intraumbilical infusion of 1.1 microgram/kg/min of norepinephrine increased placental blood flow bu...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90388-9
更新日期：1980-05-01 00:00:00
abstract：:In 10 healthy women near term, fetal heart rate, as monitored from an abdominal electrocardiogram, and its variation were analyzed over 24 hours. During the daytime, this was combined with real-time scanning for fetal breathing and movements. There was an episodic change in high and low pulse (R-R) interval variation ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90757-8
更新日期：1982-03-01 00:00:00
abstract：BACKGROUND:The American Heart Association's formal characterization of cardiovascular health combines several metrics in a health-oriented, rather than disease-oriented, framework. Although cardiovascular health assessment during pregnancy has been recommended, its significance for pregnancy outcomes is unknown. OBJEC...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.07.053
更新日期：2020-08-05 00:00:00
abstract：:This study compares associated high-risk factors and perinatal outcome between 273 symmetric and 445 asymmetric infants with intrauterine growth retardation. No differences were seen in 17 obstetric, medical, and environmental-behavioral high-risk factors between symmetric and asymmetric intrauterine growth retardatio...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)91433-w
更新日期：1991-06-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate the cost-effectiveness of Burch colposuspension compared with tension-free vaginal tape. STUDY DESIGN:A Markov decision model was developed to compare costs (2005 US dollars) and effectiveness (quality-adjusted life years) of Burch and tension-free vaginal tape for stres...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.02.039
更新日期：2007-07-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to study the incidence of severe cerebral injury in monochorionic (MC) twins with selective intrauterine growth restriction (sIUGR) and/or birthweight discordance. STUDY DESIGN:All MC twin pregnancies with 2 liveborn twins were included in the study. We excluded all cases with ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.06.008
更新日期：2008-12-01 00:00:00
