Background Twinning has been associated with many types of birth defects, although previous studies have had inconsistent findings. Many studies lack information about potential confounders, ...

Background Factors that increase the risk of labour market exclusion are poorly understood. In this study, we examined the extent to which all-cause and diagnosis-specific sick leave predict ...

Background and aims Many economic factors are associated with diet, yet the evidence is generally cross-sectional. Older people are considered especially vulnerable to poor diets from negative changes ...

Background While social support is associated with better cognitive health among cancer-free individuals, this relationship is understudied among cancer survivors. We investigated whether overall ...

Background The prevalence of congenital heart defects (CHD) in Down syndrome (DS) varies considerably across studies (from 16% to 84%). This study aimed to estimate the prevalence of CHD in people ...

STUDY OBJECTIVE--To investigate the numbers and characteristics of patients with ophthalmological accidents and emergencies presenting to hospitals. DESIGN--Prospective survey over eight weeks.

Correspondence to Dr Shanti Narayanasamy, Division of Infectious Diseases, Department of Medicine, Duke University, Durham, NC 27708, USA; shanti.narayanasamy{at}duke.edu Diagnostics for COVID-19 have ...

1 Institute on Urban Health Research, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts, USA 2 Department of Society, Human Development and Health, Harvard School of ...

1 School of Public Health and Community Medicine, University of New South Wales, Randwick, New South Wales, Australia 2 School of Population Health, University of Queensland, Herston, Queensland, ...

Correspondence to Dr Ben Armstrong, London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK; ben.armstrong{at}lshtm.ac.uk Background It is well known that high ambient ...

Background Poorer colorectal cancer survival in the UK than in similar countries may be partly due to delays in the care pathway. To address this, cancer waiting time targets were established. We ...