Effectiveness of tobacco cessation interventions for different groups of tobacco users in Sweden: a study protocol for a national prospective cohort study

Introduction Tobacco causes the development of the most common chronic diseases such as cardiovascular disease, cancer…

Addition of topical airway anaesthesia to conventional induction techniques to reduce haemodynamic instability during the induction period in patients undergoing cardiac surgery: protocol for a randomised controlled study

Introduction Anaesthesia induction in patients undergoing cardiac surgery is challenging because the circulatory system is often…

Caesarean birth in public maternities in Argentina: a formative research study on the views of obstetricians, midwives and trainees

Strengths and limitations of this study This study is one of the few studies exploring the…

Effectiveness of smart living environments to support older adults to age in place in their community: an umbrella review protocol

Introduction Frailty is a vulnerable condition exposing older adults to incidental adverse health events that negatively…

Cohort profile: Alliance for Quality Assessment in Healthcare-Dialysis (AQuAH-D) prospective cohort study of patients on haemodialysis in Japan

Strengths and limitations of this study The Alliance for Quality Assessment in Healthcare-Dialysis, a multicentre prospective…

Prevalence of olfactory dysfunction and quality of life in hospitalised patients 1 year after SARS-CoV-2 infection: a cohort study

Introduction With over 250 million cases and 5 million deaths recorded worldwide so far,1 the COVID-19…

Biomarker-guided duration of Antibiotic Treatment in Children Hospitalised with confirmed or suspected bacterial infection (BATCH): protocol for a randomised controlled trial

Strengths and limitations of this study Trial will evaluate both safety and effectiveness of procalcitonin to…

Metaphors that shape parents perceptions of effective communication with healthcare practitioners following child death: a qualitative UK study

Strengths and limitations of this study This interpretative qualitative study contributes to the growing literature on…

Effectiveness of acellular dermal matrix graft with a coronally advanced flap for the treatment of Miller Class I/II single gingival recession with thin gingival phenotype: study protocol for a split-mouth randomised controlled trial

Introduction Gingival recession is defined as exposure of the root surface due to apical migration of…

Study protocol for monitoring SARS-CoV-2 infection and its determinants in Catalonia (Spain): an observational and participatory research approach in a Sentinel Network of Schools

Strengths and limitations of this study A multicentre study combining cross-sectional and longitudinal studies, collecting data…