Algorithms to estimate the beginning of pregnancy in administrative databases.

Abstract:

PURPOSE:The role of administrative databases for research on drug safety during pregnancy can be limited by their inaccurate assessment of the timing of exposure, as the gestational age at birth is typically unavailable. Therefore, we sought to develop and validate algorithms to estimate the gestational age at birth using information available in these databases. METHODS:Using a population-based cohort of 286,432 mother-child pairs in British Columbia (1998-2007), we validated an ICD-9/10-based preterm-status indicator and developed algorithms to estimate the gestational age at birth on the basis of this indicator, maternal age, singleton/multiple status, and claims for routine prenatal care tests. We assessed the accuracy of the algorithm-based estimates relative to the gold standard of the clinical gestational age at birth recorded in the delivery discharge record. RESULTS:The preterm-status indicator had specificity and sensitivity of 98% and 91%, respectively. Estimates from an algorithm that assigned 35 weeks of gestational age at birth to deliveries with the preterm-status indicator and 39 weeks to those without them were within 2 weeks of the clinical gestational age at birth in 75% of preterm and 99% of term deliveries. CONCLUSIONS:Subtracting 35 weeks (245 days) from the date of birth in deliveries with codes for preterm birth and 39 weeks (273 days) in those without them provided the optimal estimate of the beginning of pregnancy among the algorithms studied.

authors

Margulis AV,Setoguchi S,Mittleman MA,Glynn RJ,Dormuth CR,Hernández-Díaz S

doi

10.1002/pds.3284

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

16-24

issue

1

eissn

1053-8569

issn

1099-1557

journal_volume

22

pub_type

杂志文章
  • Cluster randomized trials to study the comparative effectiveness of therapeutics: stakeholders' concerns and recommendations.

    abstract:PURPOSE:To describe the concerns raised by health plan members, providers and purchasers related to studying the comparative effectiveness of therapeutics using cluster randomized trials (CRTs) within health plans. An additional goal was to develop recommendations for increasing acceptability. METHODS:Eighty-four qual...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1754

    authors: Mazor KM,Sabin JE,Goff SL,Smith DH,Rolnick S,Roblin D,Raebel MA,Herrinton LJ,Gurwitz JH,Boudreau D,Meterko V,Dodd KS,Platt R

    更新日期:2009-07-01 00:00:00

  • A systematic review of validated methods for identifying atrial fibrillation using administrative data.

    abstract:PURPOSE:The objectives of this study were to characterize the validity of algorithms to identify AF from electronic health data through a systematic review of the literature and to identify gaps needing further research. METHODS:Two reviewers examined publications during 1997-2008 that identified patients with atrial ...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章,评审

    doi:10.1002/pds.2317

    authors: Jensen PN,Johnson K,Floyd J,Heckbert SR,Carnahan R,Dublin S

    更新日期:2012-01-01 00:00:00

  • In utero beta-2-adrenergic agonists exposure and risk of epilepsy: A Danish nationwide population-based cohort study.

    abstract:PURPOSE:To examine the association between maternal use of beta-2-adrenergic agonists (β2AAs) and the risk of epilepsy in offspring. METHODS:A nationwide retrospective cohort study was performed based on Danish registries. Children of mothers who used β2AAs during pregnancy were allocated to the exposed group and othe...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4648

    authors: Chen J,Liang H,Miao M,Su X,Yang F,Thomsen RW,Yuan W,Li J

    更新日期:2018-11-01 00:00:00

  • Use of antibiotics at hospitals in Stockholm: a benchmarking project using internet.

    abstract:PURPOSE:To evaluate the internet way of feedback to prescribing physicians, providing data on antimicrobial use and to assess the applicability of the DU90% (i.e. Drug Utilisation 90%--the number of drugs accounting for 90% of the volume of usage in defined daily doses, (DDDs)) methodology in the hospital setting. MET...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.898

    authors: Bergman U,Risinggård H,Vlahović-Palcevski V,Ericsson O

    更新日期:2004-07-01 00:00:00

  • Development of an adverse events reporting form for Korean folk medicine.

    abstract:PURPOSE:We developed an adverse events (AEs) reporting form for Korean folk medicine. METHODS:The first version of the form was developed and tested in the clinical setting for spontaneous reporting of AEs. Additional revisions to the reporting form were made based on collected data and expert input. RESULTS:We devel...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4077

    authors: Park JH,Choi SM,Moon S,Kim S,Kim B,Kim MK,Lee S

    更新日期:2017-05-01 00:00:00

  • The negative effect of red tape on research.

    abstract:PURPOSES:To describe the kind of the difficulties encountered when seeking research governance approval for a nationwide public health and genetic study-the Drug-Induced Arrhythmia Risk Evaluation study-in England. METHODS:Description of the processes followed when seeking research governance approval for the Drug-Ind...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章,评审

    doi:10.1002/pds.1116

    authors: Boshier A,Shakir SA,Telfer P,Behr E,Pakrashi T,Camm AJ

    更新日期:2005-06-01 00:00:00

  • Trends in the long-term use of benzodiazepine anxiolytics and hypnotics: A national register study for 2006 to 2014.

    abstract:PURPOSE:Long-term benzodiazepine (BZD) treatment continues to be a debated topic. Because individual BZDs have different clinical profiles, we assessed the nationwide trends of long-term BZD use at active substance level during years 2006 to 2014. METHODS:This study covered all reimbursed BZD purchases (n = 408 572-52...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4551

    authors: Kurko T,Saastamoinen LK,Tuulio-Henriksson A,Taiminen T,Tiihonen J,Airaksinen M,Hietala J

    更新日期:2018-06-01 00:00:00

  • Cerebral haemorrhage induced by warfarin - the influence of drug-drug interactions.

    abstract:PURPOSE:To evaluate the frequency, severity and preventability of warfarin-induced cerebral haemorrhages due to warfarin and warfarin-drug interactions in patients living in the county of Ostergötland, Sweden. METHODS:All patients with a diagnosed cerebral haemorrhage at three hospitals during the period 2000-2002 wer...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1291

    authors: Jönsson AK,Spigset O,Jacobsson I,Hägg S

    更新日期:2007-03-01 00:00:00

  • Optimization of a quantitative signal detection algorithm for spontaneous reports of adverse events post immunization.

    abstract:PURPOSE:To optimize the efficiency of signal detection by maximizing the proportion of true positive (TP) signals among signals detected by a disproportionality algorithm. METHODS:We compared 176 different combinations of stratification factors, sex (S), age (A), region (R) and year of report (Y), and cut-off values o...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.3392

    authors: Van Holle L,Bauchau V

    更新日期:2013-05-01 00:00:00

  • Long-term use of antihypertensive drugs and risk of cancer.

    abstract:PURPOSE:Determine the relative risk of cancer users of commonly prescribed antihypertensive drugs with a focus on documenting risk in long-term users (>7.5 years). METHODS:We conducted a nested case-control study using the Saskatchewan Health databases. Cancer risks in users of beta-blockers, calcium channel blockers ...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1656

    authors: Assimes TL,Elstein E,Langleben A,Suissa S

    更新日期:2008-11-01 00:00:00

  • Pre-existing cardiovascular conditions and pharmacological treatment of adult ADHD.

    abstract:BACKGROUND:Stimulants and atomoxetine should generally not be used or used only with caution in adults with pre-existing cardiovascular conditions. The extent to which pre-existing cardiovascular conditions influence initiation of these ADHD medications in adults is not known. METHODS:We performed a retrospective coho...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1931

    authors: Gerhard T,Winterstein AG,Olfson M,Huang C,Saidi A,Crystal S

    更新日期:2010-05-01 00:00:00

  • Mortality in schizophrenia.

    abstract::Schizophrenia is a life-threatening disease associated with mortality rates that are two to three times higher than those expected/observed in the general population. It is associated with high levels of suicide, particularly in young male patients soon after diagnosis. Delays in treating schizophrenia could contribut...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章,评审

    doi:10.1002/pds.1496

    authors: Auquier P,Lançon C,Rouillon F,Lader M

    更新日期:2007-12-01 00:00:00

  • National trends in long-term use of prescription opioids.

    abstract:PURPOSE:This study examined recent trends and correlates of prescription opioid use and long-term use in the United States. METHODS:Data were from 47 356 adult participants of National Health and Nutrition Survey from 1999-2000 to 2013-2014. Participants were asked about prescription medications used in the past 30 da...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4278

    authors: Mojtabai R

    更新日期:2018-05-01 00:00:00

  • The impact of permissive and restrictive pharmaceutical policies on quetiapine dispensing: Evaluating a policy pendulum using interrupted time series analysis.

    abstract:PURPOSE:To evaluate the impact of 2 policy changes on quetiapine dispensing in Australia: removal of prior authorisation for prescribing (policy 1: July 2007) and removal of repeat prescriptions for 25-mg quetiapine (policy 2: January 2014). METHODS:We performed an interrupted time series analysis using Pharmaceutical...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4408

    authors: Brett J,Schaffer A,Dobbins T,Buckley NA,Pearson SA

    更新日期:2018-04-01 00:00:00

  • Do people regard cheaper medicines effective? Population survey on public opinion of generic substitution in Finland.

    abstract:PURPOSE:Generic substitution (GS) is an important way to decrease medical costs. We aimed to study the opinions and attitudes of Finnish people about GS five years after it was introduced, the reasons for substituting and what people think about generic medicines. METHODS:We sent a postal survey to a random stratified...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.2084

    authors: Heikkilä R,Mäntyselkä P,Ahonen R

    更新日期:2011-02-01 00:00:00

  • Safety profile of traditional Chinese herbal injection: An analysis of a spontaneous reporting system in China.

    abstract:PURPOSE:Although a series of serious adverse events have continually raised concerns about the potential toxicity of traditional Chinese medicine injections (TCM injections), studies on this subject are still sparse. We conducted a descriptive analysis of a spontaneous reporting system in China to describe the safety p...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4805

    authors: Li H,Deng J,Deng L,Ren X,Xia J

    更新日期:2019-07-01 00:00:00

  • Pharmacoepidemiologic implications of erroneous varicella vaccinations in pregnancy through confusion with Varicella zoster immune globulin.

    abstract::A series of case reports to the varicella vaccine Pregnancy Registry described inadvertent administrations during pregnancy of this live virus product instead of the intended Varicella zoster immune globulin. Cases continued to accrue despite an early publication about the pattern. The persistent problem warrants spec...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.749

    authors: Wise RP,Braun MM,Seward JF,Mootrey GT,Shields KE,Salive ME,Krause PR

    更新日期:2002-12-01 00:00:00

  • Characterization of new users of cilostazol in the UK, Spain, Sweden, and Germany.

    abstract:PURPOSE:To describe the characteristics of new users of cilostazol in Europe with the aim to support the evaluation of its benefit/risk as used in regular clinical practice before the implementation of labeling changes recommended by the European Medicines Agency. METHODS:New users of cilostazol were identified in pop...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4167

    authors: Castellsague J,Perez-Gutthann S,Calingaert B,Bui C,Varas-Lorenzo C,Arana A,Prados-Torres A,Poblador-Plou B,Gonzalez-Rubio F,Giner-Soriano M,Roso-Llorach A,Linder M,Citarella A,Scholle O,Blenk T,Garbe E

    更新日期:2017-06-01 00:00:00

  • Statin and NSAID use and prostate cancer risk.

    abstract:PURPOSE:Some studies have reported reduced risks of advanced, but not early, prostate cancer among statin users, and one study found a reduced risk only among statin users who had also used non-steroidal anti-inflammatory drugs (NSAIDs). We have previously reported no association between statin use and prostate cancer ...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1970

    authors: Coogan PF,Kelly JP,Strom BL,Rosenberg L

    更新日期:2010-07-01 00:00:00

  • Development and validation of a 5-year mortality prediction model using regularized regression and Medicare data.

    abstract:PURPOSE:De-implementation of low-value services among patients with limited life expectancy is challenging. Robust mortality prediction models using routinely collected health care data can enhance health care stakeholders' ability to identify populations with limited life expectancy. We developed and validated a claim...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.4769

    authors: Lund JL,Kuo TM,Brookhart MA,Meyer AM,Dalton AF,Kistler CE,Wheeler SB,Lewis CL

    更新日期:2019-05-01 00:00:00

  • Assessing strength of evidence for regulatory decision making in licensing: What proof do we need for observational studies of effectiveness?

    abstract::Before a medicine can be recommended for a marketing authorization research must be provided to regulators that convincingly supports the benefit-risk of the product in the claimed indication. The established criteria for such research are usually expressed in terms of evidence from randomized controlled trials (RCT)....

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.5005

    authors: Slattery J,Kurz X

    更新日期:2020-10-01 00:00:00

  • Orthogonal predictions: follow-up questions for suggestive data.

    abstract::When a biological hypothesis of causal effect can be inferred, the hypothesis can sometimes be tested in the selfsame database that gave rise to the study data from which the hypothesis grew. Valid testing happens when the inferred biological hypothesis has scientific implications that predict new relations between ob...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1929

    authors: Walker AM

    更新日期:2010-05-01 00:00:00

  • Signal detection for vaccine side effects that have not been specified in advance.

    abstract::An information-theoretic definition of similarity proposed by Dekang Lin in 1998 appears to have attractive properties for identifying medically similar cases in a large database. Examination of similar cases that appear following vaccination may provide a way of detecting previously unexpected associations. A key ele...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1889

    authors: Walker AM

    更新日期:2010-03-01 00:00:00

  • Proton pump inhibitors and traditional nonsteroidal anti-inflammatory drugs and the risk of acute interstitial nephritis and acute kidney injury.

    abstract:PURPOSE:This study aims to examine the associations between proton pump inhibitors (PPIs), traditional nonsteroidal anti-inflammatory drugs (tNSAIDs), PPI + tNSAID co-exposure, and the development of the following: (i) acute interstitial nephritis (AIN), a specific kidney injury often attributed to these drugs, and (ii...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.3329

    authors: Leonard CE,Freeman CP,Newcomb CW,Reese PP,Herlim M,Bilker WB,Hennessy S,Strom BL

    更新日期:2012-11-01 00:00:00

  • Pediatric drug surveillance and the Food and Drug Administration's adverse event reporting system: an overview of reports, 2003-2007.

    abstract:PURPOSE:Our objective was to examine the numbers and characteristics of US pediatric adverse events (AEs) reported to the Food and Drug Administration (FDA)'s adverse event reporting system (AERS) for 5 years following implementation of the Best Pharmaceuticals for Children Act (BPCA) in 2002. METHODS:We analyzed repo...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1679

    authors: Johann-Liang R,Wyeth J,Chen M,Cope JU

    更新日期:2009-01-01 00:00:00

  • Validity and completeness of colorectal cancer diagnoses in a primary care database in the United Kingdom.

    abstract:PURPOSE:To validate the recorded diagnoses of colorectal cancer (CRC) and identify false negatives in The Health Improvement Network (THIN) primary care database. METHODS:We conducted a validation study of incident CRC cases in THIN among patients aged 40-89 years from 2000-2011. CRC Read code entries (N = 3805) were ...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.3877

    authors: Cea Soriano L,Soriano-Gabarró M,García Rodríguez LA

    更新日期:2016-04-01 00:00:00

  • Psychotropic drugs and risk of burn injury in individuals with mental illness: a 10-year population-based case-control study.

    abstract:PURPOSE:We aimed to investigate the association between psychotropic treatment and risk of burn injury in individuals with mental illness. METHODS:A nested case-control study was conducted by using the National Health Insurance Research Database in Taiwan. A total of 3187 cases with burn injury under International Cla...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.3995

    authors: Chang CM,Wu KY,Chiu YW,Wu HT,Tsai YT,Chau YL,Tsai HJ

    更新日期:2016-08-01 00:00:00

  • Use of prescription medications with a potential for fetal harm among pregnant women.

    abstract:PURPOSE:To estimate the prevalence of use of prescription drugs with a potential for fetal harm among pregnant women in the United States. METHODS:A retrospective study was conducted using the automated databases of eight health maintenance organizations involved in the HMO Research Network Center for Education and Re...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1235

    authors: Andrade SE,Raebel MA,Morse AN,Davis RL,Chan KA,Finkelstein JA,Fortman KK,McPhillips H,Roblin D,Smith DH,Yood MU,Platt R,H Gurwitz J

    更新日期:2006-08-01 00:00:00

  • Effectiveness of rosuvastatin compared to other statins for the prevention of cardiovascular events-a cohort study in 395 039 patients from clinical practice.

    abstract:PURPOSE:This study compared the effectiveness of rosuvastatin (RSV) to other statins prescribed in clinical practice in prevention of cardiovascular (CV) events. METHODS:This longitudinal inception cohort study, using Thomson Healthcare's MarketScan databases, included patients aged > or = 18 starting statin therapy d...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.1843

    authors: Motsko SP,Russmann S,Ming EE,Singh VP,Vendiola RM,Jones JK

    更新日期:2009-12-01 00:00:00

  • Using fractional polynomials to model the effect of cumulative duration of exposure on outcomes: applications to cohort and nested case-control designs.

    abstract:PURPOSE:Determining the nature of the relationship between cumulative duration of exposure to an agent and the hazard of an adverse outcome is an important issue in environmental and occupational epidemiology, public health and clinical medicine. The Cox proportional hazards regression model can incorporate time-depend...

    journal_title:Pharmacoepidemiology and drug safety

    pub_type: 杂志文章

    doi:10.1002/pds.3607

    authors: Austin PC,Park-Wyllie LY,Juurlink DN

    更新日期:2014-08-01 00:00:00