Background Participant retention strategies that minimise attrition in longitudinal cohort
studies have evolved considerably in recent years. This study aimed to assess, via …

Longitudinal cohort studies can provide important evidence about preventable causes of
disease, but the success relies heavily on the commitment of their participants, both at …

Background: Although cohort members tend to be healthy and affluent compared with the
whole population, some studies indicate this does not bias certain exposure-outcome …

Self-selection into prospective cohort studies and loss to follow-up can cause biased
exposure-outcome association estimates. Previous investigations illustrated that such …

Objective Transient gestational hypothyroxinemia in rodents induces cortical neuronal
migration brain lesions resembling those of autism. We investigated the association …

An aggravation in mental health during the COVID-19 lockdown has been suggested but the
impact on self-injury, suicidality and eating disorders (EDs) are less elucidated. Using linear …

BACKGROUND: High pre-pregnancy body mass index (BMI) and excessive gestational
weight gain (GWG) are suggested to influence risk of asthma and atopic disease in offspring …

Survey research frequently involves missing cases attributable to refusals to participate, lack
of success in accessing all potential respondents or loss to follow-up in longitudinal studies …

OBJECTIVES: The objective of the study was to investigate the associations among
maternal prepregnancy BMI, paternal BMI, and the risk of autism spectrum disorders (ASDs) …

Background The aim of pregnancy cohorts was to understand causes and development of
health and disease throughout the life course. A major challenge in cohort studies is to avoid …