Abstract:
OBJECTIVE:To assess the association between macrolide antibiotics prescribing during pregnancy and major malformations, cerebral palsy, epilepsy, attention deficit hyperactivity disorder, and autism spectrum disorder in children. DESIGN:Population based cohort study. SETTING:The UK Clinical Practice Research Datalink. PARTICIPANTS:The study cohort included 104 605 children born from 1990 to 2016 whose mothers were prescribed one macrolide monotherapy (erythromycin, clarithromycin, or azithromycin) or one penicillin monotherapy from the fourth gestational week to delivery. Two negative control cohorts consisted of 82 314 children whose mothers were prescribed macrolides or penicillins before conception, and 53 735 children who were siblings of the children in the study cohort. MAIN OUTCOME MEASURES:Risks of any major malformations and system specific major malformations (nervous, cardiovascular, gastrointestinal, genital, and urinary) after macrolide or penicillin prescribing during the first trimester (four to 13 gestational weeks), second to third trimester (14 gestational weeks to birth), or any trimester of pregnancy. Additionally, risks of cerebral palsy, epilepsy, attention deficit hyperactivity disorder, and autism spectrum disorder. RESULTS:Major malformations were recorded in 186 of 8632 children (21.55 per 1000) whose mothers were prescribed macrolides and 1666 of 95 973 children (17.36 per 1000) whose mothers were prescribed penicillins during pregnancy. Macrolide prescribing during the first trimester was associated with an increased risk of any major malformation compared with penicillin (27.65 v 17.65 per 1000, adjusted risk ratio 1.55, 95% confidence interval 1.19 to 2.03) and specifically cardiovascular malformations (10.60 v 6.61 per 1000, 1.62, 1.05 to 2.51). Macrolide prescribing in any trimester was associated with an increased risk of genital malformations (4.75 v 3.07 per 1000, 1.58, 1.14 to 2.19, mainly hypospadias). Erythromycin in the first trimester was associated with an increased risk of any major malformation (27.39 v 17.65 per 1000, 1.50, 1.13 to 1.99). No statistically significant associations were found for other system specific malformations or for neurodevelopmental disorders. Findings were robust to sensitivity analyses. CONCLUSIONS:Prescribing macrolide antibiotics during the first trimester of pregnancy was associated with an increased risk of any major malformation and specifically cardiovascular malformations compared with penicillin antibiotics. Macrolide prescribing in any trimester was associated with an increased risk of genital malformations. These findings show that macrolides should be used with caution during pregnancy and if feasible alternative antibiotics should be prescribed until further research is available. TRIAL REGISTRATION:ClinicalTrials.gov NCT03948620.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Fan H,Gilbert R,O'Callaghan F,Li Ldoi
10.1136/bmj.m331subject
Has Abstractpub_date
2020-02-19 00:00:00pages
m331eissn
0959-8138issn
1756-1833journal_volume
368pub_type
杂志文章abstract:OBJECTIVE:To investigate explanations for social inequalities in health with respect to health related social mobility and cumulative socioeconomic circumstances over the first three decades of life. DESIGN:Longitudinal follow up. SETTING:Great Britain. SUBJECTS:Data from the 1958 birth cohort study (all children bo...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.313.7055.449
更新日期:1996-08-24 00:00:00
abstract:OBJECTIVE:To investigate the association between conflicts of interest and favourable recommendations in clinical guidelines, advisory committee reports, opinion pieces, and narrative reviews. DESIGN:Systematic review. ELIGIBILITY CRITERIA:Studies that compared the association between conflicts of interest and favour...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.m4234
更新日期:2020-12-09 00:00:00
abstract:OBJECTIVE:To identify and estimate the population costs and effects of a selected set of enforcement strategies for reducing the burden of road traffic injuries in developing countries. DESIGN:Cost effectiveness analysis based on an epidemiological model. SETTING:Two epidemiologically defined World Health Organizatio...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.e612
更新日期:2012-03-02 00:00:00
abstract:OBJECTIVE:To compare the mortality of patients in a palliative care unit on working days with that on weekends and public holidays. DESIGN:Retrospective database study. SETTING:Palliative care unit in Germany. POPULATION:All admissions to palliative care unit between 1 January 1997 and 31 December 2008. MAIN OUTCOM...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.g7370
更新日期:2014-12-16 00:00:00
abstract::Eleven euthyroid patients with severe Graves' eye disease were treated with intravenous methylprednisolone and followed up for six months or more by ophthalmological assessment, orbital computed tomography (CT), photographs, and antibody measurements. Papilloedema resolved in the single patient in whom it was present;...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.297.6663.1574
更新日期:1988-12-17 00:00:00
abstract::In July 1992 Dr Keith Mumby, a clinical ecologist, appeared before the professional conduct committee of the General Medical Council on five charges to do with his practice of clinical ecology. He was found guilty of two of the charges--touting for publicity and failing to give a patient adequate medical attention--an...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.306.6870.122
更新日期:1993-01-09 00:00:00
abstract:OBJECTIVE:To assess whether a late evening meal would improve nitrogen balance in patients with cirrhosis of the liver. DESIGN:Randomised crossover study of meal schedules comparing three meals a day with four or six meals a day, the four and six meal schedules both including a late evening meal (2300). SETTING:Metab...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1136/bmj.299.6709.1202
更新日期:1989-11-11 00:00:00
abstract:OBJECTIVE:To assess the efficacy of modest non-financial incentives on immunisation rates in children aged 1-3 and to compare it with the effect of only improving the reliability of the supply of services. DESIGN:Clustered randomised controlled study. SETTING:Rural Rajasthan, India. PARTICIPANTS:1640 children aged 1...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.c2220
更新日期:2010-05-17 00:00:00
abstract:OBJECTIVE:To assess the effect of the timing of first postnatal home visit by community health workers on neonatal mortality. DESIGN:Analysis of prospectively collected data using time varying discrete hazard models to estimate hazard ratios for neonatal mortality according to day of first postnatal home visit. DATA ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.b2826
更新日期:2009-08-14 00:00:00
abstract:OBJECTIVES:To investigate whether sending patients a copy of their referral letter can reduce non-attendance at outpatient departments. DESIGN:Blinded randomised controlled trial. SETTING:13 general practices in Exeter, Devon. SUBJECTS:2078 new consultant referrals from 26 doctors. MAIN OUTCOME MEASURES:Non-attenda...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1136/bmj.318.7195.1392
更新日期:1999-05-22 00:00:00
abstract:OBJECTIVE:To estimate trends between 1972-6 and 1996 in the prevalences of asthma and hay fever in adults. DESIGN:Two epidemiological surveys 20 years apart. Identical questions were asked about asthma, hay fever, and respiratory symptoms at each survey. SETTING:Renfrew and Paisley, two towns in the west of Scotland....
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.321.7253.88
更新日期:2000-07-08 00:00:00
abstract:OBJECTIVE:To determine the association of resting echocardiography before elective intermediate to high risk non-cardiac surgery with survival and length of hospital stay. DESIGN:Population based retrospective cohort study. SETTING:Acute care hospitals in Ontario, Canada, between 1 April 1999 and 31 March 2008. PART...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.d3695
更新日期:2011-06-30 00:00:00
abstract::According to a London physician, women with epilepsy taking antiepileptic drugs can take combined oral contraceptives (OCs). It is usual to recommend a combined OC preparation containing at least 50 mcg of estrogen (Ovran) from patients taking enzyme-inducing antiepileptic drugs; this can be increased to 60 mcg by ta...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.307.6902.492
更新日期:1993-08-21 00:00:00
abstract:OBJECTIVE:Detailed analysis of primary cutaneous melanoma first diagnosed in Scotland in patients aged 65 and over. DESIGN:Comparison of changing incidence, sex distribution, site, histogenetic type, tumour thickness, and prognosis of all primary cutaneous melanomas in patients aged 65 and over diagnosed in Scotland i...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.304.6829.746
更新日期:1992-03-21 00:00:00
abstract:OBJECTIVE: To determine whether the treatment effect of apixaban versus warfarin differs with increasing numbers of concomitant drugs used by patients with atrial fibrillation. DESIGN: Post hoc analysis performed in 2015 of results from ARISTOTLE (apixaban for reduction in stroke and other thromboembolic events in atr...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.i2868
更新日期:2016-06-15 00:00:00
abstract:OBJECTIVE:To assess the education and workload of preregistration house officers in the four Thames regions. DESIGN:Postal questionnaire. SETTING:Teaching and non-teaching hospitals in the four Thames regions. PARTICIPANTS:1064 Preregistration house officers. RESULTS:Response rate was 70% (740 replies). Nine per ce...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.300.6726.713
更新日期:1990-03-17 00:00:00
abstract::Aside from email and the world wide web, there are several other systems for distributing information on the Internet. Telnet is a system that allows you to log on to a remote computer from anywhere on the Internet and affords access to many useful biomedical sites on the Internet. File transfer protocol (FTP) is a me...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7020.1626
更新日期:1995-12-16 00:00:00
abstract::Objective To estimate the cumulative radiation exposure and lifetime attributable risk of cancer incidence associated with lung cancer screening using annual low dose computed tomography (CT).Design Secondary analysis of data from a lung cancer screening trial and risk-benefit analysis.Setting 10 year, non-randomised,...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.j347
更新日期:2017-02-08 00:00:00
abstract:OBJECTIVES:To determine clinical correlates and outcome of hypoxaemia in children admitted to hospital with an acute lower respiratory tract infection. DESIGN:Prospective cohort study. SETTING:Paediatric wards of the Royal Victoria Hospital and the hospital of the Medical Research Council's hospital in Banjul, the Ga...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1136/bmj.318.7176.86
更新日期:1999-01-09 00:00:00
abstract:OBJECTIVE:To determine whether use of tinzaparin, a low molecular weight heparin introduced for prophylactic management of deep vein thrombosis, increases the risk of serious postoperative bleeding leading to a higher than expected 28 day readmission rate after discharge for hysterectomy. DESIGN:Retrospective case-con...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.38783.624444.55
更新日期:2006-04-08 00:00:00
abstract::Stroke is the leading cause of long term disability in developed countries and one of the top causes of mortality worldwide. The past decade has seen substantial advances in the diagnostic and treatment options available to minimize the impact of acute ischemic stroke. The key first step in stroke care is early identi...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.l6983
更新日期:2020-02-13 00:00:00
abstract::An association between vasectomy and the development of testicular tumors, and the importance of testicular examinations both before and after a vasectomy is discussed. Patients diagnosed with testicular tumors within the last ten years were examined at Bangour General Hospital in Scotland. From 1977-87, 37 patients...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.300.6721.370
更新日期:1990-02-10 00:00:00
abstract:OBJECTIVE:To investigate whether an important football match increases stress to such an extent that it triggers acute myocardial infarction and stroke. DESIGN:Longitudinal study of mortality around 22 June 1996 (the day the Dutch football team was eliminated from the European football championship). Mortality on 22 J...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.321.7276.1552
更新日期:2000-12-23 00:00:00
abstract::The opportunities for international public health collaboration through joint business ventures between the USSR and Western nations, an arrangement that would benefit the public, industry, and the medical community, are discussed. Evidence indicates that the state of health of the Soviet population is declining rapi...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.302.6777.633
更新日期:1991-03-16 00:00:00
abstract:OBJECTIVE:To assess the ability of ultrasonography to identify reflux nephropathy in children after urinary tract infection. DESIGN:Ten experienced radiologists performed a total of 240 ultrasonographic examinations of kidneys in a one day study. The examiners were unaware of the results of previous radiological and c...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.309.6949.235
更新日期:1994-07-23 00:00:00
abstract::Objective To estimate the incidence and prevalence of resistant hypertension among a UK population treated for hypertension from 1995 to 2015.Design Cohort study.Setting Electronic health records from the UK Clinical Practice Research Datalink in primary care.Participants 1 317 290 users of antihypertensive drugs with...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.j3984
更新日期:2017-09-22 00:00:00
abstract:OBJECTIVE:To examine whether total joint arthroplasty of the hip and knee reduces the risk for serious cardiovascular events in patients with moderate-severe osteoarthritis. DESIGN:Propensity score matched landmark analysis. SETTING:Ontario, Canada. PARTICIPANTS:2200 adults with hip or knee osteoarthritis aged 55 or...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.f6187
更新日期:2013-10-30 00:00:00
abstract:OBJECTIVE:To test the hypothesis that hydroxymethyl glutaryl coenzyme A reductase inhibitors (statins) may decrease the risk of community acquired pneumonia. DESIGN:Population based case-control study. SETTING:Group Health, a large integrated healthcare delivery system. Population Immunocompetent, community dwelling ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.b2137
更新日期:2009-06-16 00:00:00
abstract::I have attempted to adopt the perspective of a patient--albeit one with a rather atypical background--to explore what I want from health research and researchers. This has left me with the impression that health researchers could serve the interests of the public more effectively in a variety of ways, and that they wo...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.310.6990.1315
更新日期:1995-05-20 00:00:00
abstract:OBJECTIVES:To assess heat related mortalities in relation to climate within Europe. DESIGN:Observational population study. SETTING:North Finland, south Finland, Baden-Württemberg, Netherlands, London, north Italy, and Athens. SUBJECTS:People aged 65-74. MAIN OUTCOME MEASURES:Mortalities at temperatures above, below...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.321.7262.670
更新日期:2000-09-16 00:00:00