Abstract:
OBJECTIVE:To determine whether rates of suicide changed in Toronto after a barrier was erected at Bloor Street Viaduct, the bridge with the world's second highest annual rate of suicide by jumping after Golden Gate Bridge in San Francisco. DESIGN:Natural experiment. SETTING:City of Toronto and province of Ontario, Canada; records at the chief coroner's office of Ontario 1993-2001 (nine years before the barrier) and July 2003-June 2007 (four years after the barrier). PARTICIPANTS:14 789 people who completed suicide in the city of Toronto and in Ontario. MAIN OUTCOME MEASURE:Changes in yearly rates of suicide by jumping at Bloor Street Viaduct, other bridges, and buildings, and by other means. RESULTS:Yearly rates of suicide by jumping in Toronto remained unchanged between the periods before and after the construction of a barrier at Bloor Street Viaduct (56.4 v 56.6, P=0.95). A mean of 9.3 suicides occurred annually at Bloor Street Viaduct before the barrier and none after the barrier (P<0.01). Yearly rates of suicide by jumping from other bridges and buildings were higher in the period after the barrier although only significant for other bridges (other bridges: 8.7 v 14.2, P=0.01; buildings: 38.5 v 42.7, P=0.32). CONCLUSIONS:Although the barrier prevented suicides at Bloor Street Viaduct, the rate of suicide by jumping in Toronto remained unchanged. This lack of change might have been due to a reciprocal increase in suicides from other bridges and buildings. This finding suggests that Bloor Street Viaduct may not have been a uniquely attractive location for suicide and that barriers on bridges may not alter absolute rates of suicide by jumping when comparable bridges are nearby.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Sinyor M,Levitt AJdoi
10.1136/bmj.c2884subject
Has Abstractpub_date
2010-07-06 00:00:00pages
c2884eissn
0959-8138issn
1756-1833journal_volume
341pub_type
杂志文章abstract::This paper examines the impact of marital status on maternal mortality in the period before and the period after German reunification in the area covered by the former East Germany. Maternal mortality ratio prior to the reunification was stable and declined after reunification. This can be attributed to the adoption ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.319.7217.1104
更新日期:1999-10-23 00:00:00
abstract:OBJECTIVES:To identify the need for reproductive health care among a community affected by conflict, and to ascertain the priority given by the community to reproductive health issues. DESIGN:Rapid appraisal. This comprised interviews with key informants, in-depth interviews, and group discussions. Secondary data were...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.319.7212.743
更新日期:1999-09-18 00:00:00
abstract::Organs for donation are in short supply in the United Kingdom, resulting in allegations that relatives of potential donors are not being asked for consent. Legislation on "required request" has been proposed to overcome this. The incidence, causes, complications, and patterns of organ donation in brain stem dead patie...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.299.6706.1009
更新日期:1989-10-21 00:00:00
abstract:OBJECTIVE:To assess the impact of Stepping Stones, a HIV prevention programme, on incidence of HIV and herpes simplex type 2 (HSV-2) and sexual behaviour. DESIGN:Cluster randomised controlled trial. SETTING:70 villages (clusters) in the Eastern Cape province of South Africa. PARTICIPANTS:1360 men and 1416 women aged...
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.a506
更新日期:2008-08-07 00:00:00
abstract:OBJECTIVE:To investigate the results of resuscitation of patients with cardiac arrest by ambulance staff with extended training in West Yorkshire. DESIGN:Study of all such attempts at resuscitation over 32 months, based on the standard report form for each call made by the ambulance staff and the electrocardiogram tha...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.301.6752.600
更新日期:1990-09-22 00:00:00
abstract::One hundred and two patients returned structured questionnaires sent to clinics for sickle cell disease in the United Kingdom in order to gain greater insight into the patients' perception of painful crises. Most patients who suffer pain crises experience a prodromal stage that should be investigated further to find o...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.297.6646.452
更新日期:1988-08-13 00:00:00
abstract:OBJECTIVE:To investigate pharmaceutical or medical device industry funding of patient groups. DESIGN:Systematic review with meta-analysis. DATA SOURCES:Ovid Medline, Embase, Web of Science, Scopus, and Google Scholar from inception to January 2018; reference lists of eligible studies and experts in the field. ELIGIB...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.l6925
更新日期:2020-01-22 00:00:00
abstract:OBJECTIVE:To assess the effect of screening for cervical intraepithelial neoplasia on the incidence of and mortality from invasive squamous cell carcinoma of cervix in north east Scotland and to discover why cases of invasive cancer still occur. DESIGN:(a) Analysis of data on cases of cervical intraepithelial neoplasi...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.308.6941.1407
更新日期:1994-05-28 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: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 assess the validity, reliability, and acceptability of the short form 36 (SF 36) health survey questionnaire (a shortened version of a battery of 149 health status questions) as a measure of patient outcome in a broad sample of patients suffering from four common clinical conditions. DESIGN:Postal questio...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.306.6890.1440
更新日期:1993-05-29 00:00:00
abstract:PROBLEM:Prophylactic treatment and follow-up after exposure to HIV, hepatitis B, and hepatitis C outside hospital needs to be improved. BACKGROUND AND SETTING:Until January 2000, people in Amsterdam could report exposure outside hospital to either a hospital or the municipal health service. If they reported to the mun...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.330.7495.825
更新日期:2005-04-09 00:00:00
abstract:OBJECTIVE:To determine whether a booklet given to patients being discharged from hospital giving details of their admission and treatment increased their knowledge and recall when reviewed in outpatient clinics. DESIGN:Patients alternately allocated to receive a booklet or to serve as controls. Assessment by a questio...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章
doi:10.1136/bmj.298.6677.870
更新日期:1989-04-01 00:00:00
abstract::The studySheppard JP, Stevens S, Stevens R, Martin U, Mant J, Hobbs R, McManus R. Benefits and harms of antihypertensive treatment in low-risk patients with mild hypertension.Published on 1 December 2018 JAMA Intern Med 2018;178:1626-34.This project was funded by a grant from the National Institute for Health Research...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.l571
更新日期:2019-02-15 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:OBJECTIVES:To determine whether an aid to the diagnosis of pigmented skin lesions reduces the ratio of benign lesions to melanomas excised in general practice. DESIGN:Controlled trial randomised by practice. SETTING:General practices in Perth, Western Australia. PARTICIPANTS:468 general practitioners in 223 practice...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.327.7411.375
更新日期:2003-08-16 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:OBJECTIVES:To examine whether British South Asian children differ in insulin resistance, adiposity, and cardiovascular risk profile from white children. DESIGN:Cross sectional study. SETTING:Primary schools in 10 British towns. PARTICIPANTS:British children aged 8 to 11 years (227 South Asian and 3415 white); 73 Sou...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.324.7338.635
更新日期:2002-03-16 00:00:00
abstract:OBJECTIVES:To investigate the effect of Chlamydia pneumoniae infection on future development of ischaemic heart disease and mortality. DESIGN:Prospective longitudinal study. SETTING:Caerphilly, South Wales. SUBJECTS:Plasma specimens were collected during 1979-83 from 1773 men aged 45-59 years. These were tested for ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.318.7190.1035
更新日期:1999-04-17 00:00:00
abstract:OBJECTIVE:To determine long term outcome in children who had a severe acute neurological illness in early childhood associated with pertussis immunisation. DESIGN:Follow up study of cases and matched controls. SETTING:Assessment of children at home and at school throughout Britain. SUBJECTS:Children recruited into t...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.307.6913.1171
更新日期:1993-11-06 00:00:00
abstract:OBJECTIVES:To determine the relation between the HIV/AIDS epidemic and support for dependent elderly people in Africa. DESIGN:Retrospective analysis using data from Demographic and Health Surveys. SETTING:22 African countries between 1991 and 2006. PARTICIPANTS:123,176 individuals over the age of 60. MAIN OUTCOME M...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.c2841
更新日期:2010-06-16 00:00:00
abstract::Currently, clinicians have to make decisions about how to manage pulmonary embolism on the basis of imperfect tests and assessment of odds. Management protocols that inevitably result in large numbers of patients being referred for angiography are unhelpful. Management decisions based on assessment of odds and investi...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.314.7078.425
更新日期:1997-02-08 00:00:00
abstract:OBJECTIVE:To determine whether total hip arthroplasty is associated with lower reoperation rates, mortality, and complications, and better function and quality of life than hemiarthroplasty for displaced fractures of the femoral neck in older patients. DESIGN:Systematic review and meta-analysis of randomised trials, q...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.c2332
更新日期:2010-06-11 00:00:00
abstract:PROBLEM:Despite widespread acceptance of the Ottawa ankle rules for assessment of acute ankle injuries, their application varies considerably. DESIGN:Before and after study. BACKGROUND AND SETTING:Emergency departments of a tertiary teaching hospital and a community hospital in Australia. KEY MEASURES FOR IMPROVEMEN...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.b3056
更新日期:2009-08-12 00:00:00
abstract:OBJECTIVES:To examine the reporting characteristics and methodological details of randomised trials indexed in PubMed in 2000 and 2006 and assess whether the quality of reporting has improved after publication of the Consolidated Standards of Reporting Trials (CONSORT) Statement in 2001. DESIGN:Comparison of two cross...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.c723
更新日期:2010-03-23 00:00:00
abstract::Several viral infections have been reported to result in more severe disease in pregnant than non-pregnant women, but the relative risks have not been well characterised. This has now been done for Lassa fever in a prospective study of 68 pregnant and 79 non-pregnant women who were admitted to hospital in Sierra Leone...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.297.6648.584
更新日期:1988-09-03 00:00:00
abstract:OBJECTIVE:To determine the relation between mothers' self reported drinking habits before, during, and after pregnancy and infants' mental and motor development at 18 months of age. DESIGN:Follow up study of all singleton live births born to primigravidas living in Dundee and booked into antenatal clinics from 1 May 1...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章
doi:10.1136/bmj.303.6793.22
更新日期:1991-07-06 00:00:00
abstract:OBJECTIVES:To assess the acceptability of screening newborn boys for Duchenne muscular dystrophy. DESIGN:Screening is offered on the basis of informed consent in response to an information sheet entitled "A new test for baby boys--Do you want it?" The programme includes a prospective long term evaluation of family res...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.306.6874.357
更新日期:1993-02-06 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:OBJECTIVE:To estimate the risk of breast cancer associated with diagnostic radiation in carriers of BRCA1/2 mutations. DESIGN:Retrospective cohort study (GENE-RAD-RISK). SETTING:Three nationwide studies (GENEPSO, EMBRACE, HEBON) in France, United Kingdom, and the Netherlands, PARTICIPANTS:1993 female carriers of BRC...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.e5660
更新日期:2012-09-06 00:00:00