Abstract:
OBJECTIVES:To determine whether over the counter cough medicines are effective for acute cough in adults. DESIGN:Systematic review of randomised controlled trials. DATA SOURCES:Search of the Cochrane Acute Respiratory Infections Group specialised register, Cochrane Controlled Trials Register, Medline, Embase, and the UK Department of Health National Research Register in all languages. INCLUDED STUDIES:All randomised controlled trials that compared oral over the counter cough preparations with placebo in adults with acute cough due to upper respiratory tract infection in ambulatory settings and that had cough symptoms as an outcome. RESULTS:15 trials involving 2166 participants met all the inclusion criteria. Antihistamines seemed to be no better than placebo. There was conflicting evidence on the effectiveness of antitussives, expectorants, antihistamine-decongestant combinations, and other drug combinations compared with placebo. CONCLUSION:Over the counter cough medicines for acute cough cannot be recommended because there is no good evidence for their effectiveness. Even when trials had significant results, the effect sizes were small and of doubtful clinical relevance. Because of the small number of trials in each category, the results have to be interpreted cautiously.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Schroeder K,Fahey Tdoi
10.1136/bmj.324.7333.329keywords:
subject
Has Abstractpub_date
2002-02-09 00:00:00pages
329-31issue
7333eissn
0959-8138issn
1756-1833journal_volume
324pub_type
杂志文章,评审abstract:OBJECTIVE:To evaluate the immunogenicity and reactogenicity of a new triple S recombinant hepatitis B vaccine in a cohort of healthy people in whom currently licensed hepatitis B vaccines had persistently not induced an immune response. DESIGN:Single centre, randomised, double blind, dose-response study. SETTING:Rese...
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.314.7077.329
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVES:To gain insight into people's thoughts on stroke and to inform the development of educational strategies in the community. DESIGN:Focus group discussions: two groups of people who had a stroke and their carers, and two groups of members of the general public. SETTING:New South Wales, Australia. PARTICIPAN...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.324.7345.1065
更新日期:2002-05-04 00:00:00
abstract::Since the World Health Organization (WHO) set a goal in 1988 of eradicating polio worldwide by 2000, the incidence of the disease has declined by 90% around the world, with national immunization days conducted in more than 120 countries. More than 450 million children were immunized in 1998 alone. Now, with only abo...
journal_title:BMJ (Clinical research ed.)
pub_type: 新闻
doi:10.1136/bmj.318.7186.756
更新日期:1999-03-20 00:00:00
abstract:OBJECTIVES:To explore why cancer patients do not want or seek information about their condition beyond that volunteered by their physicians at times during their illness. DESIGN:Qualitative study based on in-depth interviews. SETTING:Outpatient oncology clinics at a London cancer centre. PARTICIPANTS:17 patients wit...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.320.7239.909
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVE:To systematically evaluate the published evidence regarding the characteristics and effectiveness of disease management programmes. DESIGN:Meta-analysis. DATA SOURCES:Computerised databases for English language articles during 1987-2001. STUDY SELECTION:102 articles evaluating 118 disease management progra...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.325.7370.925
更新日期:2002-10-26 00:00:00
abstract::The instrument through which a commissioner purchases health services from a provider is, as in other walks of life, a contract, so considerable importance has been attached by the NHS Executive to the contracting mechanism. A contract should in theory influence the quality of the service provided, but they are in man...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.313.7055.477
更新日期:1996-08-24 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of dietary antioxidants in the primary prevention of age related macular degeneration (AMD). DESIGN:Systematic review and meta-analysis. DATA SOURCES:Search of seven databases without limits on year or language of publication, and retrieval of references in pertinent reviews an...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.39350.500428.47
更新日期:2007-10-13 00:00:00
abstract:OBJECTIVE:To examine changes in representation of women among first authors of original research published in high impact general medical journals from 1994 to 2014 and investigate differences between journals. DESIGN:Observational study. STUDY SAMPLE:All original research articles published in Annals of Internal Med...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.i847
更新日期:2016-03-02 00:00:00
abstract:OBJECTIVE:To conduct a systematic review and meta-analysis of cohort studies of body mass index (BMI) and the risk of all cause mortality, and to clarify the shape and the nadir of the dose-response curve, and the influence on the results of confounding from smoking, weight loss associated with disease, and preclinical...
journal_title:BMJ (Clinical research ed.)
pub_type: 评论,杂志文章
doi:10.1136/bmj.i2156
更新日期:2016-05-04 00:00:00
abstract:OBJECTIVE:To determine whether diurnal variation occurs in the onset of stroke. DESIGN:Community based study over four years. SETTING:Oxfordshire, United Kingdom. SUBJECTS:105,000 people, of whom 675 had a first ever stroke. 545 had a cerebral infarction, 66 had primary intracerebral haemorrhage, 33 had subarachnoid...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.304.6820.155
更新日期:1992-01-18 00:00:00
abstract:OBJECTIVES:To examine the association of plasma caffeine concentrations during pregnancy with fetal growth and to compare this with relations with reported caffeine intake. DESIGN:Prospective population based study. SETTING:District general hospital, inner London. SUBJECTS:Women booking for delivery between 1982 and...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.313.7069.1358
更新日期:1996-11-30 00:00:00
abstract:OBJECTIVES:To summarise evidence on the association between white rice consumption and risk of type 2 diabetes and to quantify the potential dose-response relation. DESIGN:Meta-analysis of prospective cohort studies. DATA SOURCES:Searches of Medline and Embase databases for articles published up to January 2012 using...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.e1454
更新日期:2012-03-15 00:00:00
abstract:OBJECTIVE:To determine whether cognitive therapy is effective in preventing the worsening of emerging psychotic symptoms experienced by help seeking young people deemed to be at risk for serious conditions such as schizophrenia. DESIGN:Multisite single blind randomised controlled trial. SETTING:Diverse services at fi...
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.e2233
更新日期:2012-04-05 00:00:00
abstract:OBJECTIVE: To compare the effectiveness of flexible sigmoidoscopy in screening for colorectal cancer by patient sex and age. DESIGN: Pooled analysis of randomised trials (the US Prostate, Lung, Colorectal and Ovarian cancer screening trial (PLCO), the Italian Screening for Colon and Rectum trial (SCORE), and the Norwe...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.i6673
更新日期:2017-01-13 00:00:00
abstract:OBJECTIVES:To assess aspects of the internal validity of recently published cluster randomised trials and explore the reporting of information useful in assessing the external validity of these trials. DESIGN:Review of 34 cluster randomised trials in primary care published in 2004 and 2005 in seven journals (British M...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.39517.495764.25
更新日期:2008-04-19 00:00:00
abstract::There is currently much debate about how to improve undergraduate medical education, and in particular on how best to prepare students for clinical responsibility. For 20 years a period of trainee internship has formed part of New Zealand medical students' undergraduate training, and the model could have much to offer...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.308.6925.398
更新日期:1994-02-05 00:00:00
abstract:OBJECTIVE:To quantify the association between stressful life events and exacerbations of multiple sclerosis. DATA SOURCES:PubMed, PsychInfo, and Psychological Abstracts searched for empirical papers from 1965 to February 2003 with terms "stress", "trauma", and "multiple sclerosis". REVIEW METHODS:Three investigators ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.38041.724421.55
更新日期:2004-03-27 00:00:00
abstract:OBJECTIVES:To measure the impact of socioeconomic deprivation on rates of teenage pregnancy and the extent of local variation in pregnancy rates in Scotland, and to examine how both have changed over time. DESIGN:Population study using routine data from hospital records, aggregated for small areas. SUBJECTS:Female te...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.323.7306.199
更新日期:2001-07-28 00:00:00
abstract:OBJECTIVE:To investigate the effect of immediate feedback from a point of care test for salivary nicotine metabolites in promoting smoking cessation and reduction in tobacco use. DESIGN:Prospective, operator blinded, randomised controlled trial. SETTING:General dental practice, London. PARTICIPANTS:100 adult smokers...
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.38621.463900.7C
更新日期:2005-10-29 00:00:00
abstract:OBJECTIVES:To elucidate current trends and geographical patterns in the sex ratio at birth and in the population aged under 20 in China and to determine the roles played by sex selective abortion and the one child policy. DESIGN:Analysis of household based cross sectional population survey done in November 2005. SETT...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.b1211
更新日期:2009-04-09 00:00:00
abstract:OBJECTIVE:To explore the hypothesis that different methods of selecting and printing information for cancer patients could improve emotional support by affecting interaction with others, and so lead to improved psychological wellbeing. DESIGN:Randomised trial with eight groups (three factors, 2x2x2). Data collected at...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.38807.571042.68
更新日期:2006-04-22 00:00:00
abstract:OBJECTIVES:To compare the effectiveness of in vitro fertilisation with single embryo transfer or in vitro fertilisation in a modified natural cycle with that of intrauterine insemination with controlled ovarian hyperstimulation in terms of a healthy child. DESIGN:Multicentre, open label, three arm, parallel group, ran...
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.g7771
更新日期:2015-01-09 00:00:00
abstract:STUDY OBJECTIVE:Comparison of four layer bandage system with traditional adhesive plaster bandaging in terms of (a) compression achieved and (b) healing of venous ulcers. DESIGN:Part of larger randomised trial of five different dressings. SETTING:Outpatient venous ulcer clinic in university hospital. PATIENTS:(a) Pr...
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.297.6657.1159
更新日期:1988-11-05 00:00:00
abstract:OBJECTIVE:To evaluate the effect on general practitioners' prescribing of feedback on their levels of prescribing. DESIGN:Randomised controlled trial. SETTING:General practice in rural Australia. PARTICIPANTS:2440 full time recognised general practitioners practising in non-urban areas. INTERVENTION:Two sets of gra...
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.318.7182.507
更新日期:1999-02-20 00:00:00
abstract:OBJECTIVE:To estimate the prevalence of emotionalism after stroke, to assess its relation with other mood disorders, and to identify clinical variables with which it is associated. DESIGN:Descriptive study of a cohort of patients consecutively entered on a community stroke register. SETTING:Community based research p...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.298.6679.991
更新日期:1989-04-15 00:00:00
abstract:OBJECTIVE:To assess the association between genotype at the insertion or deletion polymorphism of the angiotensin converting enzyme gene and risk of coronary restenosis after percutaneous coronary intervention. DESIGN:Meta-analysis of studies before July 2001 that reported on these genotypes and risk of coronary reste...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.325.7363.517
更新日期:2002-09-07 00:00:00
abstract::Elderly and disabled people have been led to expect great improvements in the quality of community care after April 1993. The choice to live safely at home is to be offered as an alternative to residential care. The financial and organisational relationships are all intended to support this in practice. The Tomlinson ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.305.6866.1418
更新日期:1992-12-05 00:00:00
abstract:OBJECTIVE:To describe the characteristics at birth of children conceived by in vitro fertilisation (IVF) or by gamete intrafallopian transfer (GIFT) and to assess whether they differ from those of children conceived naturally. DESIGN:Survey of children resulting from IVF or GIFT and comparison of their characteristics...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.300.6734.1229
更新日期:1990-05-12 00:00:00
abstract:OBJECTIVE:To evaluate the association between migraine and cognitive decline among women. DESIGN:Prospective cohort study. SETTING:Women's Health Study, United States. PARTICIPANTS:6349 women aged 65 or older enrolled in the Women's Health Study who provided information about migraine status at baseline and particip...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.e5027
更新日期:2012-08-08 00:00:00
abstract::Cancers of unknown primary (CUPs) are histologically confirmed, metastatic malignancies with a primary tumor site that is unidentifiable on the basis of standard evaluation and imaging studies. CUP comprises 2-5% of all diagnosed cancers worldwide and is characterized by early and aggressive metastasis. Current standa...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.m4050
更新日期:2020-12-07 00:00:00