Abstract:
:Lifetime fertility, abortion rates, and the proportion of pregnancies resulting in induced abortion were investigated in 105 district health authorities in England. In 1995, a total of 147,851 abortions occurred among women living in England, compared with 613,257 live births; a ratio of 1:4. This was equivalent to a total period fertility rate of 1.72 births and a total period abortion rate of 0.44 abortions over a woman's lifetime. Total period fertility rates showed a 1.8-fold variation (1.26-2.32) and total period abortion rates demonstrated a 4.2-fold variation (0.26-1.09) between district health authorities. Extrapolation of the 1995 data suggest that, in England, a woman will have an average of 2.16 pregnancies during her lifetime, of which 0.44 (20.4%) will be aborted. About 20% of abortions occur in women under 20 years of age.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Raleigh VSdoi
10.1136/bmj.316.7146.1711subject
Has Abstractpub_date
1998-06-06 00:00:00pages
1711-2issue
7146eissn
0959-8138issn
1756-1833journal_volume
316pub_type
杂志文章abstract:OBJECTIVES:To describe the change in first day infant mortality during 1935-87. To examine the hypothesis that excess first day mortality in the 1950s and 1960s was attributable to restricting oxygen for sick newborn infants. DESIGN:Time series analysis of first day infant mortality and stillbirth rates. SETTING:Engl...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.304.6823.343
更新日期:1992-02-08 00:00:00
abstract:OBJECTIVES:To determine the effectiveness of tai chi interventions compared with aerobic exercise, a current core standard treatment in patients with fibromyalgia, and to test whether the effectiveness of tai chi depends on its dosage or duration. DESIGN:Prospective, randomized, 52 week, single blind comparative effec...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.k851
更新日期:2018-03-21 00:00:00
abstract::The studyA Rodger, V Cambiano, T Bruun, et al. Risk of HIV transmission through condomless sex in serodifferent gay couples with the HIV-positive partner taking suppressive antiretroviral therapy (PARTNER): final results of a multicentre, prospective, observational study. Lancet 2019;393:2428-38.This project was funde...
journal_title:BMJ (Clinical research ed.)
pub_type: 评论,杂志文章
doi:10.1136/bmj.l4915
更新日期:2019-08-27 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 systematically determine the impact of growth hormone therapy on adult height of children with idiopathic short stature. DESIGN:Systematic review. DATA SOURCES:Cochrane Central Register of Controlled Trials, Medline, and the bibliographic references from retrieved articles of randomised and non-randomise...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.c7157
更新日期:2011-03-11 00:00:00
abstract:OBJECTIVE:To investigate estimation of calorie (energy) content of meals from fast food restaurants in adults, adolescents, and school age children. DESIGN:Cross sectional study of repeated visits to fast food restaurant chains. SETTING:89 fast food restaurants in four cities in New England, United States: McDonald's...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.f2907
更新日期:2013-05-23 00:00:00
abstract:OBJECTIVE:To examine the effects of involving patients in the planning and development of health care. DATA SOURCES:Published and grey literature. STUDY SELECTION:Systematic search for worldwide reports written in English between January 1966 and October 2000. DATA EXTRACTION:Qualitative review of papers describing ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.325.7375.1263
更新日期:2002-11-30 00:00:00
abstract:OBJECTIVE:To determine the risk factors for neonatal encephalopathy among term infants in a developing country. DESIGN:Unmatched case-control study. SETTING:Principal maternity hospital of Kathmandu, Nepal. SUBJECTS:All 131 infants with neonatal encephalopathy from a population of 21 609 infants born over an 18 mont...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.320.7244.1229
更新日期:2000-05-06 00:00:00
abstract:OBJECTIVE:To assess the efficacy of arthroscopic subacromial decompression (ASD) by comparing it with diagnostic arthroscopy, a placebo surgical intervention, and with a non-operative alternative, exercise therapy, in a more pragmatic setting. DESIGN:Multicentre, three group, randomised, double blind, sham controlled ...
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.k2860
更新日期:2018-07-19 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::In a one year prospective study within the Trent Regional Health Authority the demand for neonatal intensive care was estimated to be 1.1 cots per 1000 births. Intensive care level 1 (as defined by the British Paediatric Association and British Association for Perinatal Paediatrics) was determined by two separate tech...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.299.6711.1305
更新日期:1989-11-25 00:00:00
abstract:OBJECTIVE:To appraise a new method of prenatal screening for Down's syndrome based on maternal serum concentrations of alpha fetoprotein, unconjugated oestriol, and human chorionic gonadotrophin combined with maternal age--the "triple test." DESIGN:Examination of the cost effectiveness of the triple test relative to s...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.302.6785.1133
更新日期:1991-05-11 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:OBJECTIVE:To investigate the long term effects of continuous subcutaneous insulin infusion (insulin pump therapy) on cardiovascular diseases and mortality in people with type 1 diabetes. DESIGN:Observational study. SETTING:Swedish National Diabetes Register, Sweden 2005-12. PARTICIPANTS:18,168 people with type 1 dia...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.h3234
更新日期:2015-06-22 00:00:00
abstract::Telephone helplines are an effective way of dealing with health related incidents in which large numbers of people need personal counselling or information for reassurance or case finding. Helplines often have to be set up at short notice, which is labour intensive and makes recruitment of appropriate staff difficult....
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.309.6946.44
更新日期:1994-07-02 00:00:00
abstract:OBJECTIVES:To examine trends over time in the rates of admission to hospital for accidents of preschool children and to study patterns of repeated admissions for accidents in these children. DESIGN:Analysis of linked, routine abstracts of hospital inpatient records for accidents. SETTING:Six districts in the Oxford R...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.302.6767.16
更新日期:1991-01-05 00:00:00
abstract:OBJECTIVES:To identify factors that differentiate between effective and ineffective computerised clinical decision support systems in terms of improvements in the process of care or in patient outcomes. DESIGN:Meta-regression analysis of randomised controlled trials. DATA SOURCES:A database of features and effects of...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.f657
更新日期:2013-02-14 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 explore the factors that influence help seeking for mental distress by offenders. DESIGN:Qualitative study based on in-depth interviews with prisoners before and after release. SETTING:One category B local prison in southern England. PARTICIPANTS:35 male offenders aged 18-52, a quarter of whom had been ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.39059.594444.AE
更新日期:2007-02-10 00:00:00
abstract:OBJECTIVES:To examine the association between environmental exposure to takeaway food outlets, takeaway food consumption, and body weight, while accounting for home, work place, and commuting route environments. DESIGN:Population based, cross sectional study, using data on individual participants' diet and weight, and...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.g1464
更新日期:2014-03-13 00:00:00
abstract:OBJECTIVES:To evaluate the use of a maternity unit run by general practitioners and midwives, describing the outcome of labour in an unselected group of women and quantifying the contribution made by general practitioners. DESIGN:Retrospective population based review of obstetric patients who had access to an isolated...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.312.7025.223
更新日期:1996-01-27 00:00:00
abstract::On 1 April the Department of Health introduced the mandatory collection of data on the ethnic group of patients admitted to hospital. Its coding was based on a national minimum standard for classifying ethnic groups, ostensibly using the categories in the 1991 census. In the census, however, one in four people from et...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7011.1006
更新日期:1995-10-14 00:00:00
abstract:OBJECTIVE:To compare ultrasonography with intravenous urography in the investigation of adults with haematuria. DESIGN:Prospective study entailing the examination of all patients with both investigations concurrently. The investigations were performed independently on routine lists by different duty radiologists. Each...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章
doi:10.1136/bmj.301.6760.1074
更新日期:1990-11-10 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: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 develop and refine a complex intervention for diabetes support and education in minority ethnic groups, delivered through bilingual health advocates. DESIGN:Action research framework-a variety of methods used in an emergent and developmental manner, in partnership with clinicians, managers, and service us...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.330.7492.628
更新日期:2005-03-19 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:OBJECTIVE:To estimate the risk of acute hepatotoxicity associated with nimesulide compared with other non-steroidal anti-inflammatory drugs. DESIGN:Retrospective cohort and nested case-control study. SETTING:Umbria region, Italy. PARTICIPANTS:400 000 current, recent, and past users (almost 2 million prescriptions) o...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.327.7405.18
更新日期:2003-07-05 00:00:00
abstract:OBJECTIVE:To investigate clinical trialists' opinions and experiences of sharing of clinical trial data with investigators who are not directly collaborating with the research team. DESIGN AND SETTING:Cross sectional, web based survey. PARTICIPANTS:Clinical trialists who were corresponding authors of clinical trials ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.e7570
更新日期:2012-11-20 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