Selection bias and patterns of confounding in cohort studies: the case of the NINFEA web-based birth cohort.

Abstract:

BACKGROUND:Several studies have examined the effects of sample selection on the exposure-outcome association estimates in cohort studies, but the reasons why this selection may induce bias have not been fully explored. AIMS:To investigate how sample selection of the web-based NINFEA birth cohort may change the confounding patterns present in the source population. METHODS:The characteristics of the NINFEA participants (n=1105) were compared with those of the wider source population-the Piedmont Birth Registry (PBR)-(n=36 092), and the association of two exposures (parity and educational level) with two outcomes (low birth weight and birth by caesarean section), while controlling for other risk factors, was studied. Specifically the associations among measured risk factors within each dataset were examined and the exposure-outcome estimates compared in terms of relative ORs. RESULTS:The associations of educational level with the other risk factors (alcohol consumption, folic acid intake, maternal age, pregnancy weight gain, previous miscarriages) partly differed between PBR and NINFEA. This was not observed for parity. Overall, the exposure-outcome estimates derived from NINFEA only differed moderately from those obtained in PBR, with relative ORs ranging between 0.74 and 1.03. CONCLUSIONS:Sample selection in cohort studies may alter the confounding patterns originally present in the general population. However, this does not necessarily introduce selection bias in the exposure-outcome estimates, as sample selection may reduce some of the residual confounding present in the general population.

authors

Pizzi C,De Stavola BL,Pearce N,Lazzarato F,Ghiotti P,Merletti F,Richiardi L

doi

10.1136/jech-2011-200065

subject

Has Abstract

pub_date

2012-11-01 00:00:00

pages

976-81

issue

11

eissn

0143-005X

issn

1470-2738

pii

jech-2011-200065

journal_volume

66

pub_type

杂志文章
  • Referral to a new psychological therapy service is associated with reduced utilisation of healthcare and sickness absence by people with common mental health problems: a before and after comparison.

    abstract:BACKGROUND:Improving Access to Psychological Therapies (IAPT) is a new programme designed to reduce disease burden to the individual and economic burden to the society of common mental health problems (CMHP). This is the first study to look at the impact of IAPT on health service utilisation and sickness absence using ...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.2011.139873

    authors: de Lusignan S,Chan T,Parry G,Dent-Brown K,Kendrick T

    更新日期:2012-06-01 00:00:00

  • Childhood household dysfunction, school performance and psychiatric care utilisation in young adults: a register study of 96 399 individuals in Stockholm County.

    abstract:BACKGROUND:Exposure to childhood household dysfunction increases the risk of psychiatric morbidity. Although school performance also has been linked with psychiatric morbidity, limited research has considered school performance as a mediating factor. To address this gap in the literature, the current register study exa...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2015-206329

    authors: Björkenstam E,Dalman C,Vinnerljung B,Weitoft GR,Walder DJ,Burström B

    更新日期:2016-05-01 00:00:00

  • Birth weight is inversely associated with coronary heart disease in post-menopausal women: findings from the British women's heart and health study.

    abstract:OBJECTIVES:(1) To assess the association between birth weight and coronary heart disease (CHD) risk in a cohort of post-menopausal women, (2) to determine the combined effects of birth weight and adult body mass index on CHD, (3) to assess the role of insulin resistance as a mediating factor in the associations. DESIG...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.58.2.120

    authors: Lawlor DA,Davey Smith G,Ebrahim S

    更新日期:2004-02-01 00:00:00

  • Effects of Superblocks on health and health inequities: a proposed evaluation framework.

    abstract::The following essay outlines the intervention and presents a framework that will serve as a guide in the evaluation of the different effects of the Superblocks. Superblocks consist of amalgamations of blocks throughout the city, with the goal of improving the habitability of public spaces, advancing sustainable mobili...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章,评审

    doi:10.1136/jech-2018-211738

    authors: Mehdipanah R,Novoa AM,León-Gómez BB,López MJ,Palència L,Vasquez H,Díez È,Borrell C,Pérez K

    更新日期:2019-07-01 00:00:00

  • Leukaemia and childhood cancer in twins.

    abstract::Data from the United Kingdom on childhood leukaemia and childhood cancer in twins and from the United States on leukaemia in twins are analysed by a new method. The method distinguishes determinants occurring before the stage of pregnancy corresponding with the cleavage of MZ pairs, from determinants occurring after t...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.38.1.12

    authors: Knox EG,Marshall T,Barling R

    更新日期:1984-03-01 00:00:00

  • Bicycle helmet campaigns and head injuries among children. Does poverty matter?

    abstract:OBJECTIVES:To assess the impact of a community based bicycle helmet programme aimed at children aged 5-12 years (about 140,000) from poor and well off municipalities. METHODS:A quasi-experimental design, including a control group, was used. Changes in the risk of bicycle related head injuries leading to hospitalisatio...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.57.9.668

    authors: Farley C,Laflamme L,Vaez M

    更新日期:2003-09-01 00:00:00

  • Short-term mortality of myocardial infarction patients with diabetes or hyperglycaemia during admission.

    abstract:AIM:The hypothesis that patients with hyperglycaemia during admission, regardless of previous diagnosis of diabetes, have worse prognosis than those with normal glucose values is controversial. The objective was to assess the role of hyperglycaemia on short-term mortality after myocardial infarction (MI). METHODS AND ...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.56.9.707

    authors: Sala J,Masiá R,González de Molina FJ,Fernández-Real JM,Gil M,Bosch D,Ricart W,Sentí M,Marrugat J,REGICOR Investigators.

    更新日期:2002-09-01 00:00:00

  • Trajectories of body mass index and waist circumference in four Peruvian settings at different level of urbanisation: the CRONICAS Cohort Study.

    abstract:BACKGROUND:Studies have reported the incidence/risk of becoming obese, but few have described the trajectories of body mass index (BMI) and waist circumference (WC) over time, especially in low/middle-income countries. We assessed the trajectories of BMI and WC according to sex in four sites in Peru. METHODS:Data from...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2017-209795

    authors: Carrillo-Larco RM,Miranda JJ,Gilman RH,Checkley W,Smeeth L,Bernabé-Ortiz A,CRONICAS Cohort Study Group.

    更新日期:2018-05-01 00:00:00

  • Acceptability of domestic violence against women in the European Union: a multilevel analysis.

    abstract:STUDY OBJECTIVE:The acceptability of domestic violence against women (DVAW) plays an important part in shaping the social environment in which the victims are embedded, which in turn may contribute either to perpetuate or to reduce the levels of DVAW in our societies. This study analyses correlates of the acceptability...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.2005.036533

    authors: Gracia E,Herrero J

    更新日期:2006-02-01 00:00:00

  • Disparities in injury morbidity among young adults in the USA: individual and contextual determinants.

    abstract:BACKGROUND:Injuries have been recognised as important public health concerns, particularly among adolescents and young adults. Few studies have examined injuries using a multilevel perspective that addresses individual socioeconomic status (SES) and health behaviours and local socioeconomic conditions in early adolesce...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2017-210259

    authors: Schmidt S,Sparks PJ

    更新日期:2018-06-01 00:00:00

  • The influence of neighbourhood-level socioeconomic deprivation on cardiovascular disease mortality in older age: longitudinal multilevel analyses from a cohort of older British men.

    abstract:BACKGROUND:Evidence from longitudinal studies on the influence of neighbourhood socioeconomic factors in older age on cardiovascular disease (CVD) mortality is limited. We aimed to investigate the prospective association of neighbourhood-level deprivation in later life with CVD mortality, and assess the underlying role...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2015-205542

    authors: Ramsay SE,Morris RW,Whincup PH,Subramanian SV,Papacosta AO,Lennon LT,Wannamethee SG

    更新日期:2015-12-01 00:00:00

  • Early oral contraceptive use and breast cancer: theoretical effects of latency.

    abstract::Many cancers and other chronic diseases are associated with a long delay between exposure to a putative risk factor and subsequent diagnosis. This presents well recognised problems in the elucidation of suspected risk factors by epidemiological methods. In this paper we discuss the interpretation in epidemiological st...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.40.4.289

    authors: McPherson K,Coope PA,Vessey MP

    更新日期:1986-12-01 00:00:00

  • Research in epidemiology and community health in the medical curriculum: students' opinions of the Nottingham experience.

    abstract::Medical students in Nottingham all complete an honours Bachelor of Medical Sciences course in one department including a research project. The honours programme in community health is described, with results from a survey of the 122 graduates since the medical school started. The 98 (80%) responses showed high levels ...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.40.3.232

    authors: Elwood JM,Pearson JC,Madeley RJ,Logan RF,Beaver MW,Gillies PA,Little J,Langham A

    更新日期:1986-09-01 00:00:00

  • Comparison of a spatial approach with the multilevel approach for investigating place effects on health: the example of healthcare utilisation in France.

    abstract:STUDY OBJECTIVE:Most studies of place effects on health have followed the multilevel analytical approach that investigates geographical variations of health phenomena by fragmenting space into arbitrary areas. This study examined whether analysing geographical variations across continuous space with spatial modelling t...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.2004.025478

    authors: Chaix B,Merlo J,Chauvin P

    更新日期:2005-06-01 00:00:00

  • Standardisation of laboratories engaged in lipid analyses of population health examination surveys.

    abstract:BACKGROUND:Reliable data on clinical biomarkers are necessary in order to assess the health risks of populations and especially in assessing long-term trends related to disease incidence. METHODS:Ten European laboratories participated in a two-phase quality control exercise of total cholesterol (TC) and high-density l...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2018-210763

    authors: Alfthan G,Sundvall J,Råman L,Kuulasmaa K,Tolonen H,European Health Examination Survey Pilot Project.

    更新日期:2018-07-01 00:00:00

  • A cancer survival model that takes sociodemographic variations in "normal" mortality into account: comparison with other models.

    abstract:STUDY OBJECTIVES:Sociodemographic differentials in cancer survival have occasionally been studied by using a relative survival approach, where all cause mortality among persons with a cancer diagnosis is compared with that among similar persons without such a diagnosis ("normal" mortality). One should ideally take into...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.56.4.309

    authors: Kravdal Ø

    更新日期:2002-04-01 00:00:00

  • Effects of subsidising bus travel on the occurrence of road traffic casualties.

    abstract::Between 1975 and 1 April 1986, public transport by bus in the metropolitan county of South Yorkshire, England, was increasingly subsidised. Trends in road traffic accident casualties between 1974 and 1983 in all the six provincial English metropolitan counties have been compared in order to examine the possible effect...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.41.1.50

    authors: Nicholl JP,Freeman MR,Williams BT

    更新日期:1987-03-01 00:00:00

  • The importance of community education for individual mortality: a fixed-effects analysis of longitudinal multilevel data on 1.7 million Norwegian women and men.

    abstract:BACKGROUND:Earlier investigations have shown mortality effects of community socio-economic resources. However, the sex differences have not been clear, and the estimates may well have been biased because of inadequate control for community factors affecting both the socio-economic resources and mortality. The objective...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.2008.081034

    authors: Kravdal O

    更新日期:2010-12-01 00:00:00

  • Exposure to interparental violence and psychosocial maladjustment in the adult life course: advocacy for early prevention.

    abstract:BACKGROUND:Early family-level and social-level stressors are both assumed to be the components of two main path models explaining the association between exposure to interparental violence in childhood and its long-term consequences on mental health explored through life-course epidemiological studies. AIMS:To investi...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.2008.077750

    authors: Roustit C,Renahy E,Guernec G,Lesieur S,Parizot I,Chauvin P

    更新日期:2009-07-01 00:00:00

  • Why don't more young men in the UK become fathers?

    abstract:OBJECTIVE:This paper aims to show that, compared with young women, there is an apparent discrepancy in the reported sexual behaviour of young men and records of their fatherhood. DESIGN:The data come from four studies of the sexual behaviour of young people in various parts of Britain between 1960 and 1990 and from st...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.48.1.52

    authors: Cartwright A

    更新日期:1994-02-01 00:00:00

  • Is immunising all patients with chronic lung disease in the community against influenza cost effective? Evidence from a general practice based clinical prospective cohort study in Utrecht, The Netherlands.

    abstract:STUDY OBJECTIVE:There is little information on the potential benefit of immunising all patients with chronic lung disease in the community against influenza. The clinical effectiveness and economic benefit was established of the influenza vaccination programme in a general practice based cohort of adult patients with c...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.52.2.120

    authors: Hak E,van Essen GA,Buskens E,Stalman W,de Melker RA

    更新日期:1998-02-01 00:00:00

  • Physical and mental health outcomes following housing improvements: evidence from the GoWell study.

    abstract:BACKGROUND:Existing research points towards physical and mental health gains from housing improvements, but findings are inconsistent and often not statistically significant. The detailed characteristics and variability of housing improvement works are problematic and studies are often small, not experimental, with sho...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2014-204064

    authors: Curl A,Kearns A,Mason P,Egan M,Tannahill C,Ellaway A

    更新日期:2015-01-01 00:00:00

  • Increasing smoke alarm operability through theory-based health education: a randomised trial.

    abstract:BACKGROUND:Although working smoke alarms halve deaths in residential fires, many households do not keep alarms operational. We tested whether theory-based education increases alarm operability. METHODS:Randomised multiarm trial, with a single arm randomly selected for use each day, in low-income neighbourhoods in Mary...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章,随机对照试验

    doi:10.1136/jech-2014-204182

    authors: Miller TR,Bergen G,Ballesteros MF,Bhattacharya S,Gielen AC,Sheppard MS

    更新日期:2014-12-01 00:00:00

  • Extreme temperatures and paediatric emergency department admissions.

    abstract:BACKGROUND:Children are particularly vulnerable to the effects of extreme temperatures. OBJECTIVE:To examine the relationship between extreme temperatures and paediatric emergency department admissions (EDAs) in Brisbane, Australia, during 2003-2009. METHODS:A quasi-Poisson generalised linear model combined with a di...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2013-202725

    authors: Xu Z,Hu W,Su H,Turner LR,Ye X,Wang J,Tong S

    更新日期:2014-04-01 00:00:00

  • Climate change effects on human health: projections of temperature-related mortality for the UK during the 2020s, 2050s and 2080s.

    abstract:BACKGROUND:The most direct way in which climate change is expected to affect public health relates to changes in mortality rates associated with exposure to ambient temperature. Many countries worldwide experience annual heat-related and cold-related deaths associated with current weather patterns. Future changes in cl...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech-2013-202449

    authors: Hajat S,Vardoulakis S,Heaviside C,Eggen B

    更新日期:2014-07-01 00:00:00

  • Socioeconomic gradients in the prevalence of cardiovascular disease in Scotland: the roles of composition and context.

    abstract:OBJECTIVE:To investigate whether occupational social class and area deprivation are independently associated with the prevalence of cardiovascular disease (CVD) conditions after adjustment for smoking status. DESIGN:Stratified multistage random sample analysed using multilevel logistic regression. PARTICIPANTS:8804 a...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.2005.034017

    authors: Leyland AH

    更新日期:2005-09-01 00:00:00

  • The impact of community psychological responses on outbreak control for severe acute respiratory syndrome in Hong Kong.

    abstract:OBJECTIVE:To examine the public's knowledge and perception of SARS and the extent to which various precautionary measures have been adopted. DESIGN:Cross sectional survey. SETTING:General population of Hong Kong at the height of the SARS outbreak (29 March to 6 April 2003). PARTICIPANTS:1115 ethnic Chinese adults. ...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.57.11.857

    authors: Leung GM,Lam TH,Ho LM,Ho SY,Chan BH,Wong IO,Hedley AJ

    更新日期:2003-11-01 00:00:00

  • Cost and health consequences of reducing the population intake of salt.

    abstract:STUDY OBJECTIVE:The aim was to estimate health and economic consequences of interventions aimed at reducing the daily intake of salt (sodium chloride) by 6 g per person in the Norwegian population. Health promotion (information campaigns), development of new industry food recipes, declaration of salt content in food an...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.54.9.697

    authors: Selmer RM,Kristiansen IS,Haglerod A,Graff-Iversen S,Larsen HK,Meyer HE,Bonaa KH,Thelle DS

    更新日期:2000-09-01 00:00:00

  • Ascertainment of congenital malformations: a comparative study of two systems.

    abstract:STUDY OBJECTIVE:The aim was to compare the Office of Population Censuses and Surveys (OPCS) notification system for congenital malformation surveillance and the Liverpool Congenital Malformations Registry (LCMR) with respect to efficiency and uniformity of ascertainment, diagnostic accuracy, and overreporting of minor ...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章

    doi:10.1136/jech.45.4.294

    authors: Dutton SJ,Owens JR,Harris F

    更新日期:1991-12-01 00:00:00

  • Does the UK government's teenage pregnancy strategy deal with the correct risk factors? Findings from a secondary analysis of data from a randomised trial of sex education and their implications for policy.

    abstract:BACKGROUND:Much of the UK government's 1999 report on teenage pregnancy was by necessity based on rather old or non-longitudinal research. AIM:To examine the associations between risk factors identified in the report and pregnancy at or before age 16 years among young women and partners of young men using the more rec...

    journal_title:Journal of epidemiology and community health

    pub_type: 杂志文章,随机对照试验

    doi:10.1136/jech.2005.040865

    authors: Allen E,Bonell C,Strange V,Copas A,Stephenson J,Johnson AM,Oakley A

    更新日期:2007-01-01 00:00:00