OBJECTIVE Non-compliance with food record submission can induce bias in nutritional epidemiological analysis and make it difficult to draw inference from study findings. We examined the impact of demographic, lifestyle and psychosocial factors on such non-compliance during the first 3 years of participation in a multidisciplinary prospective paediatric study. DESIGN The Environmental Determin...

BACKGROUND In 2012, we set out to recruit a cohort of at least 10,000 women aged 18-23 from across Australia. With recent research demonstrating the inadequacy of traditional approaches to recruiting women in this age group, we elected to conduct open recruiting. OBJECTIVE Our aim was to report on the overall success of open recruiting and to evaluate the relative success of a variety of recr...

OBJECTIVES To compare the effects of four different amounts of exercise for preventing depressive symptoms in community-dwelling older adults. DESIGN Prospective cohort study. SETTING A nationally representative sample in Taiwan. PARTICIPANTS Four waves of the survey 'Taiwan Longitudinal Study on Aging (TLSA)' from 1996 to 2007 were analysed. A total of 2673 older adults aged 65 years and...

BACKGROUND In Switzerland, assisted suicide is legal but there is concern that vulnerable or disadvantaged groups are more likely to die in this way than other people. We examined socio-economic factors associated with assisted suicide. METHODS We linked the suicides assisted by right-to-die associations during 2003-08 to a census-based longitudinal study of the Swiss population. We used Cox ...

BACKGROUND IUD is one of the safest and most widely used reversible methods of contraception. The purpose of this study was to determine IUD survival and reasons for early discontinuation in Bandar Abbas, south of Iran. METHODS Probability of IUD continuation rate and factors associated with discontinuation were assessed in a historical cohort study of 400 women records from March 2002 to Feb...

BACKGROUND Cleft lip and/or palate (CL/P) is one of the most common birth conditions in the world, but little is known about its causes. Professional opinion remains divided as to which treatments may be the most beneficial for patients with CL/P, and the factors that contribute to psychological adjustment are poorly understood. The use of different methodological approaches and tools plays a k...

Adverse childhood experiences (ACEs) can affect people's health and wellbeing not only at the time the ACE is experienced, but also later in life. The majority of studies on ACEs are carried out in high-income countries and little is known about its prevalence in low and middle-income countries. Thus, the aim of this study was to assess the prevalence of ACEs, associations between ACEs and soci...

BACKGROUND Youth violence is a major global public health problem. Three UK and Swedish studies suggest that low resting heart rate predicts male youth violence, but this has not been tested in other social settings nor for females. METHODS A prospective, population-based birth cohort study was conducted in Pelotas, Brazil. Heart rate was measured using a wrist monitor at ages 11, 15 and 18 y...

Introduction: Sleep disorder caused by adenotonsillar hypertrophy has been implicated as a cause of primary and secondary nocturnal enuresis in children.  This study was conducted to investigate the effect of adenotonsillectomy on enuresis in children with adenotonsillar hypertrophy.  Materials and Methods: This prospective cohort study was conducted in Hamadan City in Western Iran, from Ap...