BackgroundEvidence on the association between fish consumption and depression is inconsistent and virtually non-existent from low- and middle-income countries. Using a standard protocol, we aim to assess the association of fish consumption and late-life depression in seven low- and middle-income countries.Methodology/FindingsWe used cross-sectional data from the 10/66 cohort study and applied two diagnostic criteria for late-life depression to assess the association between categories of weekly fish consumption and depression according to ICD-10 and the EURO-D depression symptoms scale scores, adjusting for relevant confounders. All-catchment area surveys were carried out in Cuba, Dominican Republic, Venezuela, Peru, Mexico, China, and India, and over 15,000 community-dwelling older adults (65+) were sampled. Using Poisson models the adjusted association between categories of fish consumption and ICD-10 depression was positive in India (p for trend = 0.001), inverse in Peru (p = 0.025), and not significant in all other countries. We found a linear inverse association between fish consumption categories and EURO-D scores only in Cuba (p for trend  = 0.039) and China (p<0.001); associations were not significant in all other countries. Between-country heterogeneity was marked for both ICD-10 (I2>61%) and EURO-D criteria (I2>66%).ConclusionsThe associations of fish consumption with depression in large samples of older adults varied markedly across countries and by depression diagnosis and were explained by socio-demographic and lifestyle variables. Experimental studies in these settings are needed to confirm our findings.

IntroductionIn Europe, the social inequalities in perinatal health are usually found to be to the disadvantage of non-European immigrants and women with lower levels of education and income. Among the possible underlying mechanisms are inadequate access to healthcare services and suboptimal care. To explore this hypothesis in the Belgian context, our research will describe detailed maternal socioeconomic and migration characteristics, explore how these factors relate to each other, and how they relate to women’s perinatal care trajectories and experiences of care.MethodsUsing a modified version of the Migrant-Friendly Maternity Care Questionnaire, we will survey 900 mothers of Belgian nationality or a nationality from a North or Sub-Saharan African country, and having given birth in four maternity wards in Brussels. The questionnaire has been adapted to the study objectives and the Belgian context. Interviewers will administer the 116-item questionnaire to all women agreeing to participate and meeting inclusion criteria, within 14 days of having given birth. Clinical information will be extracted from hospital records.AnalysisWe will estimate the associations of women’s socioeconomic and migration characteristics with:Women’s antenatal care trajectories (timing of first antenatal consultation, minimum recommended number of consultations, and problems accessing care).Obstetric practices such as episiotomies, emergency caesarean sections, and inductions.Patient experience such as feelings of discrimination, respect, and understanding of information.We will use descriptive statistics, multiple correspondence analysis, and simple and multiple logistic regressions.Ethics and disseminationEthical approval has been obtained from the hospital Ethics Committees and from the Université libre de Bruxelles (No: P2017/055/B406201730877). Written informed consent will be sought from all participants.In addition to disseminating findings and recommendations to the scientific community through open-source journal articles and conferences, we will also address local organisations and healthcare professionals via a written report and seminars.

Background One of the mechanisms explaining perinatal health inequalities could be inadequate antenatal care among some immigrant groups. Few European studies compared antenatal care use between different groups of immigrants taking into account individual characteristics. This research investigates the associations of three birth regions with the use of antenatal care, by also considering socioeconomic and migration-related determinants. Methods We included 879 mothers born in Belgium, North Africa, and Sub-Saharan Africa, and interviewed them in four Brussels hospitals after they gave birth, using an adapted version of the Migrant-Friendly Maternity Care Questionnaire. We additionally collected clinical data from hospital records. We carried out descriptive analyses and ran univariate and multivariable logistic regression models to estimate the associations of socioeconomic and migration characteristics with a) late start of antenatal care and b) less than minimum recommended number of consultations. Results The vast majority of women in this study had adequate care in terms of timing (93.9%), frequency of consultations (82.2%), and self-reported access (95.9%). Region of birth was an independent risk factor for late initiation of care, but not for infrequent consultations. Women born in Sub-Saharan Africa were more prone to accessing care late (OR 3.3, 95%CI 1.5–7.7), but were not more at risk of infrequent consultations. Women born in North Africa, had similar adequacy of care compared to the Belgium-born population. The three groups also differed in terms of socioeconomic profiles and socioeconomic predictors of antenatal care use. Housing type, professional activity, and health insurance status were important predictors of both outcomes. Conclusions This study showed that the region of birth was partly associated with adequacy of care, in terms of initiation, but not number of consultations. Further dimensions of adequacy of care (content, quality) should be studied in the future. Socioeconomic factors are also key determinants of antenatal care use.