Abstract:
INTRODUCTION:Postpartum hemorrhage (PPH) is recognized as a leading cause of obstetric morbidity and mortality. Population-wide studies have used International Classification of Diseases (ICD) diagnostic codes to track and report the prevalence of PPH. Although the 10th revision (ICD-10) was introduced in Sweden in 1997, the accuracy of ICD-10 codes for PPH is not known. Thus, the aim was to determine the accuracy of diagnostic coding for PPH in the Swedish Pregnancy Register. MATERIAL AND METHODS:We performed a retrospective cohort study of 609 807 deliveries in Sweden between 2014 and 2019. Information on ICD-10 codes for PPH and estimated blood loss were extracted from the Swedish Pregnancy Register. Using an estimated blood loss >1000 mL as the reference standard, we evaluated the diagnostic accuracy of ICD-10 codes for PPH by estimating sensitivity, specificity, positive predictive value and negative predictive value with exact binomial 95% confidence intervals (CIs). In our secondary analysis, we assessed the ICD-10 coding accuracy for severe PPH, defined as an estimated blood loss >1000 mL and transfusion of at least 1 unit of red blood cells registered in the Scandinavian Donations and Transfusion database. RESULTS:Of the 609 807 deliveries, 43 312 (7.1%) had an ICD-10 code for PPH and 45 071 (7.4%) had an estimated blood loss >1000 mL. The ICD codes had a sensitivity of 88.5% (95% CI 88.2-88.7), specificity of 99.4% (95% CI 99.4-99.4), positive predictive value of 92.0% (95% CI 91.8-92.3) and negative predictive value of 99.1% (95% CI 99.1-99.1). In our secondary analysis, on deliveries with severe PPH, the sensitivity for an ICD code was 91.3% (95% CI 90.7-91.9), whereas specificity was 83.5% (95% CI 82.3-84.6). CONCLUSIONS:Our findings indicate that ICD-10 codes for PPH in Sweden have moderately high sensitivity and excellent specificity. These results suggest that PPH diagnostic codes in medical records and linked pregnancy and birth registers can be used for research, quality improvement and reporting PPH prevalence in Sweden.
journal_name
Acta Obstet Gynecol Scandjournal_title
Acta obstetricia et gynecologica Scandinavicaauthors
Ladfors LV,Muraca GM,Butwick A,Edgren G,Stephansson Odoi
10.1111/aogs.13994subject
Has Abstractpub_date
2021-02-01 00:00:00pages
322-330issue
2eissn
0001-6349issn
1600-0412journal_volume
100pub_type
杂志文章abstract::This study was performed to investigate the efficacy of oral mifepristone and vaginal gemeprost for termination of early pregnancy. Eighty women requesting first trimester abortion and with amenorrhea of less than 56 days were included. Gestational age was confirmed with ultrasonography. Mifepristone was administered ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349309013347
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:This investigation was undertaken to study the conditions resulting in midtrimester fetal hydrops and to evaluate its overall prognosis as regards counseling purposes. MATERIAL AND METHODS:The etiology of midtrimester non-immune fetal hydrops was retrospectively evaluated as regards cases detected in single...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:Based on a comparison of the clinical indications for cesarean section (CS) in two Danish counties and a review of the literature regarding this issue the aim of this study was to discuss possible explanations for variations in CS rates in twin pregnancies. The comparison of indications for CS in twin pregnan...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349409013414
更新日期:1994-02-01 00:00:00
abstract::Neutrophil gelatinase-associated lipocalin (NGAL) was evaluated prospectively through normal pregnancy and pregnancies complicated by preeclampsia syndrome. Sixty women enrolled in the study were evaluated for serum NGAL levels at 9-11 weeks gestation, at 24-26 weeks gestation and at delivery. Thirty women were affect...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016340903443676
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:Massive hemorrhage due to placenta previa with placenta accreta spectrum is associated with high maternal mortality and morbidity. Therefore, accurate prediction of placenta previa with placenta accreta spectrum is essential; magnetic resonance imaging (MRI) is a useful tool for this purpose. This study in...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13937
更新日期:2020-12-01 00:00:00
abstract::The effect of estrogen therapy on climacteric symptoms and tissue changes was studied in 100 castrated women. 1/2 of the women received 2 mg/day estriol succinate and 1/2 received 2 mg/day estradiol valerate for 6 months beginning 1 month postcastration. Measurements were made of the thickness of the epidermis befor...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016347409162169
更新日期:1974-01-01 00:00:00
abstract:OBJECTIVE:To provide insight into the differential effect of immigration on cesarean section (CS) rates, using the Robson classification. DESIGN:A population-based study using birth certificates from the birth registry of 2009. SETTING:All births in two of the three Belgian regions excluding Flanders. POPULATION:37 ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12003
更新日期:2013-02-01 00:00:00
abstract::Pulmonary hypertension is defined as pulmonary artery pressure greater than 30/15 mmHg. The etiologies of pulmonary hypertension can be divided into primary and secondary ones. The causes of the latter include long-lasting left-to-right shunts (congenital cardiac defects e.g. ventricular septal defect), pulmonary thro...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349409072516
更新日期:1994-11-01 00:00:00
abstract::In premenopausal women ovaries are the major sites of estrogen production, while in postmenopausal women estrogen is produced by aromatization of ovarian and adrenal androgens in extragonadal sites, mostly in adipose tissue. Aromatase is a cytochrome P450 hemoprotein-containing enzyme complex that catalyzes the rate-l...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/j.0001-6349.2004.00562.x
更新日期:2004-08-01 00:00:00
abstract:INTRODUCTION:Noninvasive fetal heart rate monitoring using transabdominal fetal electrocardiographic detection is now commercially available and has been demonstrated to be an effective alternative to traditional Doppler ultrasonographic techniques. Our objective in this study was to compare the results of computerized...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13760
更新日期:2020-03-01 00:00:00
abstract:INTRODUCTION:Preterm birth is a major cause of perinatal morbidity and mortality worldwide. In many countries preterm birth rates are increasing, largely due to increases in iatrogenic preterm birth, while in other countries rates are stable or even declining. The objective of the study is to describe trends in singlet...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.14074
更新日期:2020-12-31 00:00:00
abstract::Two hyperprolactinemic infertile women, one with and one without a pituitary adenoma, who were resistant to bromocriptine treatment, were treated orally with Hachimijiogan, a Chinese herbal medicine. This treatment reduced the serum prolactin level, resulting in a normal ovulatory cycle and pregnancy, without side eff...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016348909021028
更新日期:1989-01-01 00:00:00
abstract::A 50-year-old women was admitted on suspicion of abdominal tumor. Clinical examination and ultrasonography revealed a living fetus of 24.2 weeks' gestational age. Amniocentesis revealed trisomy 18 (Edwards' syndrome). At 34 weeks the fetus died spontaneously, and by cesarean section a stillborn boy of 770 g was delive...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Midwives in Sweden are responsible for taking Papanicolaou (Pap) smears as part of the cervical cancer screening program. The aim of this study was to investigate midwives knowledge, experience and management of the cervical cancer screening program, and their apprehension of women's knowledge about Pap-smea...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340701371272
更新日期:2007-01-01 00:00:00
abstract::In a prospective, randomized study the duration and effectiveness of four different regimens of PCB were studied: Bupivacaine both with and without adrenaline, and chloroprocaine with and without adrenaline. The pain relief was immediate and almost complete in most patients in all four treatment groups. The duration o...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016348309155804
更新日期:1983-01-01 00:00:00
abstract::In this paper we present a patient with an initially questionable history of neonatal alloimmune thrombocytopenia (NAT) due to materno-fetal HPA-1a (PLA1) incompatibility. No circulating antibodies were detectable in untreated maternal serum, but an adsorption/elution technique enabled the demonstration of the platele...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349309058169
更新日期:1993-10-01 00:00:00
abstract:BACKGROUND:Legal abortion is a recurrent part of gynecologists' work. The aim of the study was to describe Swedish gynecologists' clinical and emotional experiences when working in abortion care. Further aims were to elucidate their perception of women's motives for having an abortion as well as looking for possible de...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1080/00016340500409976
更新日期:2006-01-01 00:00:00
abstract:INTRODUCTION:In assisted reproductive technology, aneuploidy is considered a primary cause of failed embryo implantation. This has led to the implementation of preimplantation genetic testing for aneuploidy in some clinics. The prevalence of aneuploidy and the use of aneuploidy screening during preimplantation genetic ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13823
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:To investigate natural menstrual bleeding patterns in pre- and perimenopausal women, a prospective observational population study was carried out. METHODS:A total of 1616 (80.8%) of a population-based sample of 2000 Danish women aged 45-54 years answered an initial questionnaire. Of 1059 women with natural ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.0001-6349.2004.00401.x
更新日期:2004-02-01 00:00:00
abstract:BACKGROUND:The aim was to construct a new symphysis-fundus (SF) height growth chart, based on ultrasound-dated singleton pregnancies. METHODS:We made a population-based study of all women, from the catchment areas of three district antenatal clinics, who registered for antenatal care during 1986. The growth of the SF ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349509021174
更新日期:1995-10-01 00:00:00
abstract:AIMS:This study describes the characteristics and per- and postoperative frequencies of complications in vaginal hysterectomies for benign lesions in patients with a history of cesareans. We compare these figures with the frequency of complications in vaginal hysterectomies without a history of such operations. PATIEN...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1046/j.1600-0412.2003.00247.x
更新日期:2003-12-01 00:00:00
abstract::Vitamin B-6 100 mg given daily throughout the menstrual cycle was compared with placebo in a randomized, double-blind crossover trial in 34 women who suffered from premenstrual tension. Vitamin B-6 was no better than placebo. There was a substantial period effect, as the women evidenced a considerable preference for t...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00016348509158211
更新日期:1985-01-01 00:00:00
abstract:INTRODUCTION:Congenital heart defects are associated with neurodevelopmental delay. It is hypothesized that fetuses affected by congenital heart defect have altered cerebral oxygen perfusion and are therefore prone to delay in cortical maturation. The aim of this study was to determine the difference in fetal brain age...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13687
更新日期:2019-12-01 00:00:00
abstract:INTRODUCTION:A correct diagnosis of preeclampsia and gestational hypertension is important for treatment and epidemiological studies. Changes in diagnostic criteria and underreporting in certain subsets of patients may hamper validity of the diagnoses. MATERIALS AND METHODS:We validated the discharge diagnoses of pree...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.13006
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:To compare the fatty acid phospholipid composition of the umbilical artery and the placenta in cases of fetal growth retardation (FGR) and of normal growth, as well as in symmetric and asymmetric FGR. DESIGN:Case-control study. SETTING:University hospital. POPULATION:Thirty-nine FGR cases (12 asymmetric, 2...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1600-0412.2001.080009807.x
更新日期:2001-09-01 00:00:00
abstract::Epigenetic modification controls gene activity without changes in the DNA sequence. The genome undergoes several phases of epigenetic programming during gametogenesis and early embryo development, coinciding with assisted reproductive technologies (ART) treatments. Imprinting disorders have been associated with ART te...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/aogs.12799
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:To compare neonatal and maternal outcomes for breech first twins according to whether vaginal or cesarean delivery was planned and to verify that in appropriate selected cases, attempted vaginal delivery is a reasonable choice. METHODS:A retrospective study of all twin pregnancies with the first twin in bre...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章,多中心研究
doi:10.1080/00016340601089594
更新日期:2007-01-01 00:00:00
abstract::Oxytocin concentrations increased during pregnancy and during medication with low-dose oral contraceptives (o.c.). Postprandial somatostatin concentrations were lower during medication with o.c. Insulin concentrations were elevated during pregnancy with the same tendency during medication with o.c. Gastrin levels were...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.3109/00016349109007873
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:Most studies of cervical conization have considered the frequency of complications and the outcome of follow-up. The determinants of cone margin positivity have been inadequately described. In a series of CIN patients undergoing conization-equivalent electrosurgical procedure, we evaluated the factors associ...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract:OBJECTIVE:To assess the extent to which the Enzian classification correlates with the revised American Society for Reproductive Medicine (rASRM) score and clinical symptoms in women with deeply infiltrating endometriosis. DESIGN:Retrospective cohort study (Canadian Task Force classification II-2). SETTING:Endometrios...
journal_title:Acta obstetricia et gynecologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aogs.12118
更新日期:2013-05-01 00:00:00