Research into the changes in the frequency of sexual intercourse is (with few exceptions) limited to cross-sectional analyses of marital duration. We investigate the frequency of intercourse while taking into account relationship duration as well as the duration of cohabitation and marriage, effects of parenthood, and relationship quality. For the analysis we apply fixed effects regression mode...

Evidence relating to dietary change is contradictory, as some studies document a lack of dietary change while other studies report a degree of success in the implementation and maintenance of long-term dietary change. The present cross-sectional survey aimed to establish the prevalence of dietary change in a community sample, with a focus on four mechanisms of dietary change: two mechanisms wit...

In Senegal, only 60% of mothers in rural areas deliver in health facilities. Mothers' satisfaction with their facility-based childbirth experience is one of the factors in their choosing to deliver in such facilities in subsequent pregnancies. The objective of this study was to assess whether compliance with childbirth care based on the mothers' perception of facility-based childbirth care cont...

BACKGROUND Lower socioeconomic position (SEP) is associated with an increased risk of suicidal behaviour in high-income countries, but this association is unclear in low-income and middle-income countries. METHODS We investigated the association of SEP with attempted suicide in a cross-sectional survey of 165 233 Sri Lankans. SEP data were collected at the household (assets, social standing (...

Testing the idea that the process of forgiveness is intrinsically different across diverse relationships, this study examined the role of forgiveness in different family relationships. In 2 laboratory sessions 1 year apart, 114 families (each including 2 parents and 1 child) completed a new measure of family forgiveness and many individual-level, relationship-level, and family-level variables t...

BACKGROUND Street children are an increasing problem in Latin America. It is however difficult to estimate the number of children in the street as this is a highly mobile population. AIMS To estimate the number of street children in Aracaju, northeast Brazil, and describe the characteristics of this population. METHODS Three independent lists of street children were constructed from a non-g...

BACKGROUND Stepped wedge cluster randomised trials frequently involve a relatively small number of clusters. The most common frameworks used to analyse data from these types of trials are generalised estimating equations and generalised linear mixed models. A topic of much research into these methods has been their application to cluster randomised trial data and, in particular, the number of c...

Background/Objectives Few studies have applied the Chinese Diet Balance Index (DBI) in evaluating dietary quality for Chinese people. The present cross-sectional study assessed dietary quality based on DBI for older people, and the associated factors, in four socioeconomically distinct regions in China.

BACKGROUND Age at menarche is known to be regulated by genetic and environmental factors. To date, no menarcheal data are available on North Korean women. In this cross-sectional survey, we investigated age at menarche and its possible influencing factors in North Korean refugees. METHODS Four hundred and eleven North Korean refugees were surveyed at a North Korean female refugee camp using a...

Most empirical tests of mediation utilize cross-sectional data despite the fact that mediation consists of causal processes that unfold over time. The authors considered the possibility that longitudinal mediation might occur under either of two different models of change: (a) an autoregressive model or (b) a random effects model. For both models, the authors demonstrated that cross-sectional a...