Abstract:
OBJECTIVE:To determine whether inhaled salmeterol, a new long acting inhaled beta adrenergic agonist, reduces nocturnal bronchoconstriction and improves sleep quality in patients with nocturnal asthma. DESIGN:Randomised, double blind, placebo controlled crossover study. SETTING:Hospital outpatient clinics in Edinburgh. SUBJECTS:Twenty clinically stable patients (13 women, seven men) with nocturnal asthma, median age 39 (range 18-60) years. INTERVENTIONS:Salmeterol 50 micrograms and 100 micrograms and placebo taken each morning and evening by metered dose inhaler. Rescue salbutamol inhalers were provided throughout the run in and study periods. MAIN OUTCOME MEASURES:Improvement in nocturnal asthma as measured by peak expiratory flow rates and change in sleep quality as measured by electroencephalography. RESULTS:Salmeterol improved the lowest overnight peak flow rate at both 50 micrograms (difference in median values (95% confidence interval for difference in medians) 69 (18 to 88) l/min) and 100 micrograms (72 (23 to 61) l/min) doses twice daily. While taking salmeterol 50 micrograms twice daily patients had an objective improvement in sleep quality, spending less time awake or in light sleep (-9 (-4 to -44) min) and more time in stage 4 sleep (26 (6-34) min). CONCLUSIONS:Salmeterol is an effective long acting inhaled bronchodilator for patients with nocturnal asthma and at a dose of 50 micrograms twice daily improves objective sleep quality.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Fitzpatrick MF,Mackay T,Driver H,Douglas NJdoi
10.1136/bmj.301.6765.1365subject
Has Abstractpub_date
1990-12-15 00:00:00pages
1365-8issue
6765eissn
0959-8138issn
1756-1833journal_volume
301pub_type
临床试验,杂志文章,随机对照试验abstract:OBJECTIVES:To assess the incidence, time of day, and driver morbidity associated with vehicle accidents where the most likely cause was the driver falling asleep at the wheel. DESIGN:Two surveys were undertaken, in southwest England and the midlands, by using police databases or on the spot interviews. SUBJECTS:Drive...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.310.6979.565
更新日期:1995-03-04 00:00:00
abstract:OBJECTIVES:To report the sensitivities of the faecal occult blood test, screening episode, and screening programme for colorectal cancer and the benefits of applying a randomised design at the implementation phase of a new public health policy. DESIGN:Experimental design incorporated in public health evaluation using ...
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.a2261
更新日期:2008-11-20 00:00:00
abstract:OBJECTIVES:To identify the genetic determinants of fracture risk and assess the role of 15 clinical risk factors on osteoporotic fracture risk. DESIGN:Meta-analysis of genome wide association studies (GWAS) and a two-sample mendelian randomisation approach. SETTING:25 cohorts from Europe, United States, east Asia, an...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.k3225
更新日期:2018-08-29 00:00:00
abstract:OBJECTIVE:To test the hypothesis of an association between neonatal intramuscular vitamin K and childhood leukaemia and other cancers. DESIGN:Population based case-control study with data abstracted from hospital records. SETTING:Scotland. SUBJECTS:Children aged 0-14 years resident in Scotland from 1991-4 and diagno...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.316.7126.173
更新日期:1998-01-17 00:00:00
abstract:OBJECTIVE:To examine whether, according to the conclusions of a 2000 systematic review with meta-analysis on interventions to prevent pain from propofol injection that provided a research agenda to guide further research on the topic, subsequently published trials were more often optimally blinded, reported on children...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.g5219
更新日期:2014-08-26 00:00:00
abstract:OBJECTIVE:To investigate associations between Apgar scores of 7, 8, and 9 (versus 10) at 1, 5, and 10 minutes, and neonatal mortality and morbidity. DESIGN:Population based cohort study. SETTING:Sweden. PARTICIPANTS:1 551 436 non-malformed live singleton infants, born at term (≥37 weeks' gestation) between 1999 and ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.l1656
更新日期:2019-05-07 00:00:00
abstract::Objective To determine the attributable risk of community acquired pneumonia on incidence of heart failure throughout the age range of affected patients and severity of the infection.Design Cohort study.Setting Six hospitals and seven emergency departments in Edmonton, Alberta, Canada, 2000-02.Participants 4988 adults...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.j413
更新日期:2017-02-13 00:00:00
abstract:OBJECTIVE:To determine whether genetic factors associated with established rheumatoid arthritis could, in combination with rheumatoid factor, predict the development of radiological erosions in patients with early symmetrical (rheumatoid-like) arthritis. DESIGN:Prospective study. SETTING:Teaching hospital, early arth...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.305.6866.1387
更新日期:1992-12-05 00:00:00
abstract:OBJECTIVE:To evaluate the impact and cost effectiveness of a programme to transform adult critical care throughout England initiated in late 2000. DESIGN:Evaluation of trends in inputs, processes, and outcomes during 1998-2000 compared with last quarter of 2000-6. SETTING:96 critical care units in England. PARTICIPA...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.b4353
更新日期:2009-11-11 00:00:00
abstract:OBJECTIVE:To document the relative importance of endogenous sex steroids in modulating the frequency of orgasms, the dominant aspect of sexual behaviour in healthy eugonadal men. DESIGN:Measurement of adrenal and testicular sex steroids in a sample of army recruits and study of their relation to frequency of orgasms a...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.310.6990.1289
更新日期:1995-05-20 00:00:00
abstract:OBJECTIVE:To evaluate the effect of financial incentives on four clinical quality indicators common to pay for performance plans in the United Kingdom and at Kaiser Permanente in California. DESIGN:Longitudinal analysis. SETTING:35 medical facilities of Kaiser Permanente Northern California, 1997-2007. PARTICIPANTS:...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.c1898
更新日期:2010-05-11 00:00:00
abstract:OBJECTIVE:To determine whether peer review medical audit in a primary care setting changes clinical behaviour in relation to the management of hypertension. DESIGN:Review of medical records in general practices to identify hypertensive patients followed up by assessment of the pre-educational and post-educational mana...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.314.7085.942
更新日期:1997-03-29 00:00:00
abstract::Accumulating data indicate that modifications in diet may reduce the risk of cancer by as much as one third and possibly by as much as two thirds. On the basis of the existing evidence, however, it is not possible to be certain which cancers are causally related to diet and what proportion of them are due to specific ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.308.6944.1610
更新日期:1994-06-18 00:00:00
abstract:OBJECTIVE:To determine the global capacity (availability, accessibility, quality, and affordability) to deliver kidney replacement therapy (dialysis and transplantation) and conservative kidney management. DESIGN:International cross sectional survey. SETTING:International Society of Nephrology (ISN) survey of 182 cou...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.l5873
更新日期:2019-10-31 00:00:00
abstract:OBJECTIVE:To compare characteristics of patients and outcomes after elective surgery in independent sector treatment centres (ISTCs) and NHS providers. DESIGN:Follow-up study with outcomes reported by patients three to six months after surgery. SETTING:25 ISTCs and 72 NHS providers in England. Population Consecutive ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.d6404
更新日期:2011-10-19 00:00:00
abstract:OBJECTIVE:To evaluate the effects on suicidal behaviour of legislation limiting the size of packs of paracetamol and salicylates sold over the counter. DESIGN:Before and after study. SETTING:UK population, with detailed monitoring of data from five liver units and seven general hospitals, between September 1996 and S...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.322.7296.1203
更新日期:2001-05-19 00:00:00
abstract:OBJECTIVE:To compare the efficacy of five probiotic preparations recommended to parents in the treatment of acute diarrhoea in children. Design Randomised controlled clinical trial in collaboration with family paediatricians over 12 months. SETTING:Primary care. PARTICIPANTS:Children aged 3-36 months visiting a famil...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.39272.581736.55
更新日期:2007-08-18 00:00:00
abstract::WHO is under pressure from all sides to justify its existence. Donors want to know what they are getting for their money, and health professionals question the relevance of the organisation's work. The pressure to justify itself is perhaps strongest of all in Europe, where most member countries have fully fledged heal...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.310.6976.389
更新日期:1995-02-11 00:00:00
abstract:OBJECTIVE:To quantify the association of indices of central obesity, including waist circumference, hip circumference, thigh circumference, waist-to-hip ratio, waist-to-height ratio, waist-to-thigh ratio, body adiposity index, and A body shape index, with the risk of all cause mortality in the general population, and t...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.m3324
更新日期:2020-09-23 00:00:00
abstract::For the past 18 years there has been a proliferation of European committees, boards, associations, colleges, and working groups set up to promote the harmonisation of specialist training in Europe. It has been taken as read that this objective is desirable. The fact that these bodies have achieved remarkably little is...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7000.297
更新日期:1995-07-29 00:00:00
abstract:OBJECTIVES:To assess whether supplementation with antioxidants, folinic acid, or both improves the psychomotor and language development of children with Down's syndrome. DESIGN:Randomised controlled trial with two by two factorial design. SETTING:Children living in the Midlands, Greater London, and the south west of ...
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.39465.544028.AE
更新日期:2008-03-15 00:00:00
abstract:OBJECTIVE:To compare effectiveness and acceptability of early discharge to a hospital at home scheme with that of routine discharge from acute hospital. DESIGN:Pragmatic randomised controlled trial. SETTING:Acute hospital wards and community in north of Bristol, with a catchment population of about 224 000 people. S...
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.316.7147.1796
更新日期:1998-06-13 00:00:00
abstract:OBJECTIVE:To describe risk factors for infantile colic. DESIGN:Questionnaire administered by health visitors. SETTING:Sheffield. SUBJECTS:Mothers of 76,747 infants born between 1 August 1975 and 31 May 1988, interviewed when the infant was 1 month old. MAIN OUTCOME MEASURES:Reporting of infantile colic and its dura...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.314.7090.1325
更新日期:1997-05-03 00:00:00
abstract:OBJECTIVE:To determine prevalence of HIV infection and drug injecting behaviour among inmates of Glenochil Prison on a specified date a year after an outbreak of hepatitis B and HIV infection. DESIGN:Cross sectional: voluntary, anonymous HIV salivary antibody surveillance and linked self completion questionnaire on ri...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.310.6975.293
更新日期:1995-02-04 00:00:00
abstract:OBJECTIVE: To directly compare the performance and externally validate the three most studied prediction tools for osteoporotic fractures-QFracture, FRAX, and Garvan-using data from electronic health records. DESIGN: Retrospective cohort study. SETTING: Payer provider healthcare organisation in Israel. PARTICIPANTS:...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.i6755
更新日期:2017-01-19 00:00:00
abstract:OBJECTIVES:To relate cancer since entry into the Framingham Heart Study with the risk of incident Alzheimer's disease and to estimate the risk of incident cancer among participants with and without Alzheimer's disease. DESIGN:Community based prospective cohort study; nested age and sex matched case-control study. SET...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.e1442
更新日期:2012-03-12 00:00:00
abstract:OBJECTIVE:To determine the prevalence of diabetes in relation to birth weight in Pima Indians. DESIGN:Follow up study of infants born during 1940-72 who had undergone a glucose tolerance test at ages 20-39 years. SETTING:Gila River Indian community, Arizona. SUBJECTS:1179 American Indians. MAIN OUTCOME MEASURE:Prev...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.308.6934.942
更新日期:1994-04-09 00:00:00
abstract::Objective To determine the efficacy of low intensity pulsed ultrasound (LIPUS) for healing of fracture or osteotomy.Design Systematic review and meta-analysis.Data sources Medline, Embase, CINAHL, Cochrane Central Register of Controlled Trials, and trial registries up to November 2016.Study selection Randomized contro...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.j656
更新日期:2017-02-22 00:00:00
abstract:OBJECTIVE:To investigate the risks of adverse pregnancy and birth outcomes for treated and untreated bipolar disorder during pregnancy. DESIGN:Population based cohort study using data from national health registers. SETTING:Sweden. PARTICIPANTS:332,137 women with a last menstrual period anytime after 1 July 2005 and...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.e7085
更新日期:2012-11-08 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