Maternal and child dietary patterns and their determinants in Nigeria

Understanding the overall dietary patterns of a population is a key step in initiating appropriate nutritional interventions and policies. Studies characterising the dietary patterns of Nigerian mothers and children are lacking. Complete dietary data for 13 566 mothers and their 13 506 children were analysed from the 2008 Nigerian Demographic and Health Surveys (NDHS), a nationally representative sample, to identify the overall maternal and child dietary patterns and to study the potential determinants of such dietary patterns. The 2008 NDHS included questions that inquired about the food items mothers and their children had consumed during the 24 h preceding the day of the interview. Factor analysis with the principal component procedure was used to construct the dietary patterns, and multiple multilevel logistic regression was used to investigate the determinants of the dietary patterns. Four (‘mixed’, ‘traditional’, ‘staple foods and milk products’ and ‘beverages’) and five (‘mixed’, ‘selective’, ‘beverages and candies’, ‘gruels, grains and semi‐solids’ and ‘infant formula and cereals’) distinct dietary patterns were obtained for the mothers and children, respectively. The key determinants of both maternal and child dietary patterns were month of interview, religion, region of residence, maternal education, maternal occupation, wealth index and maternal body mass index. Marital status additionally predicted maternal patterns, while sex of the child, number of siblings, child's age, maternal age and place of residence additionally determined the child's patterns. This study has identified four and five different dietary patterns to characterise the dietary habits of Nigerian mothers and their children, respectively, and has shown the important socio‐economic/demographic factors influencing the dietary patterns, which can guide appropriate nutritional interventions among Nigerian mothers and children.     

Association of maternal characteristics and behaviours with 4‐year‐old children's dietary patterns

This study examined the association of family and maternal characteristics with preschool children's dietary patterns. Trained interviewers evaluated subsample 3422 mothers and children enrolled in the population‐based birth cohort Generation XXI (Porto, Portugal, 2005–2006). Maternal characteristics and behaviours (exercise, smoking habits, diet and child‐feeding practices) and family characteristics were evaluated. Maternal diet was classified by a dietary score, and children's dietary patterns were identified by latent class analysis. Odds ratios (OR) and confidence intervals (95% CI) were estimated by multinomial regression models. The analysis was based on a framework with four conceptual levels: maternal socio‐economic position (SEP) at 12 years, maternal socio‐economic and demographic characteristics at child's delivery, family characteristics and maternal behaviours at child's 4 years. Three dietary patterns were identified in children: high in energy‐dense foods (EDF); low in foods typically consumed at main meals and intermediate in snacks (Snacking); higher in healthy foods; and lower in unhealthy ones (Healthier, reference). Lower maternal SEP had an overall effect on children's diet (low vs. high SEP; EDF, OR = 1.76, 95% CI: 1.42–2.18; Snacking, OR = 1.73, 95% CI: 1.27–2.35), while maternal education was directly associated with it (≤9 vs. >12 schooling years, EDF, OR = 2.19, 95% CI: 1.70–2.81; Snacking, OR = 2.22, 95% CI: 1.82–3.55). Children whose mothers had worse dietary score were significantly more likely to follow unhealthier patterns (first vs. fourth quartile; EDF, OR = 9.94, 95% CI: 7.35–13.44, P‐trend < 0.001; Snacking, OR = 4.21, 95% CI: 2.94–6.05, P‐trend < 0.001). Maternal diet was the key factor associated with children's diet, above and beyond socio‐economic and demographic characteristics, accounting for one‐third of the determination coefficient of the fully adjusted model. At preschool age, interventions should give a particular focus on maternal diet and low SEP groups.     

Dietary patterns by cluster analysis in pregnant women: relationship with nutrient intakes and dietary patterns in 7‐year‐old offspring

Little is known about how dietary patterns of mothers and their children track over time. The objectives of this study are to obtain dietary patterns in pregnancy using cluster analysis, to examine women's mean nutrient intakes in each cluster and to compare the dietary patterns of mothers to those of their children. Pregnant women (n = 12 195) from the Avon Longitudinal Study of Parents and Children reported their frequency of consumption of 47 foods and food groups. These data were used to obtain dietary patterns during pregnancy by cluster analysis. The absolute and energy‐adjusted nutrient intakes were compared between clusters. Women's dietary patterns were compared with previously derived clusters of their children at 7 years of age. Multinomial logistic regression was performed to evaluate relationships comparing maternal and offspring clusters. Three maternal clusters were identified: ‘fruit and vegetables’, ‘meat and potatoes’ and ‘white bread and coffee’. After energy adjustment women in the ‘fruit and vegetables’ cluster had the highest mean nutrient intakes. Mothers in the ‘fruit and vegetables’ cluster were more likely than mothers in ‘meat and potatoes’ (adjusted odds ratio [OR]: 2.00; 95% Confidence Interval [CI]: 1.69–2.36) or ‘white bread and coffee’ (OR: 2.18; 95% CI: 1.87–2.53) clusters to have children in a ‘plant‐based’ cluster. However the majority of children were in clusters unrelated to their mother dietary pattern. Three distinct dietary patterns were obtained in pregnancy; the ‘fruit and vegetables’ pattern being the most nutrient dense. Mothers' dietary patterns were associated with but did not dominate offspring dietary patterns.     

Dietary patterns of Chinese puerperal women and their association with postpartum weight retention: Results from the mother–infant cohort study

Dietary intake may affect maternal health, but it remains unclear about puerperal dietary intake and its association with maternal health. This study investigated the dietary patterns and their related factors and association with postpartum weight retention (PPWR) in Chinese puerperal women. Participants were from the mother–infant cohort study, in which both mothers and infants were followed up from childbirth to the next 2 years, in seven cities around China. Maternal puerperal dietary patterns were derived by a food frequency questionnaire and principal component analysis (PCA) within 1 month postpartum. PPWR was assessed by the difference of weight at 42 days and 6 months postpartum minus the pre‐pregnancy weight. Of 503 postpartum women, four dietary patterns were identified, including ‘plant food’ pattern (rice and vegetables as dominant foods), ‘diverse’ pattern (starchy roots, fruit, livestock meat and aquatic products), ‘traditional northern’ pattern (poultry, eggs and soup) and ‘marine‐flour’ pattern (flour, coarse food grains and marine fish). The diverse pattern was associated with professional puerperal family care and counselling service (p < .05). PPWRs at 42 days and 6 months postpartum were 6.37 and 4.70 kg averagely. The plant food dietary pattern tended to be associated with higher 42‐day PPWR (β = .105, p < .05), and diverse pattern was associated with lower 6‐months PPWR (β = −.137, p < .05). Conclusively, this study presented four dominant dietary patterns in Chinese postpartum women and showed a lower PPWR in adherence to diverse dietary pattern. The results would provide evidence to furtherly guide dietary practice and improve maternal health.     

Introduction of complementary foods with respect to French guidelines: description and associated socio‐economic factors in a nationwide birth cohort (Epifane survey)

We described the introduction of complementary food (ICF) during the first year of life and identify associations observed with maternal and infant characteristics. We studied 3368 children included in the Epifane cohort, France, 2012. Maternal and infant characteristics and age at introduction of 28 complementary foods were collected at birth and at 1, 4, 8 and 12 months. Kaplan–Meier plots were used to represent probabilities of ICF. A score was used as tertiles in multinomial logistic regression to identify maternal and infant factors associated with ICF agreement with French recommendations. Median age of ICF was 152 days. While 12.6% of infants received complementary food before the age of 4 months, 95% of them were introduced after 7 months. Recommendations were generally followed, except for eggs and added fats, introduced in only 23.2% and 53.1% of 1‐year‐old infants, respectively. Factors significantly associated with the first ICF score tertile (low agreement with recommendations) vs. third tertile were as follows: maternal age 18–24 years (OR = 2.24 [1.49–3.35]) or 25–29 years (OR = 1.57 [1.21–2.04]), education less than or equal to high school graduation (OR = 1.94[1.51–2.48]), birthplace in France (OR = 2.13 [1.41–3.21]), three or more children (OR = 1.70 [1.15–2.51]), no follow‐up antenatal classes (OR = 1.58 [1.22–2.04]), unemployment before and after pregnancy (OR = 1.64 [1.04–2.59]), unemployment before pregnancy and return to work within 12 months (OR = 2.06 [1.05–4.02]), no breastfeeding (OR = 2.08 [1.55–2.79]) or lasting <28 days (OR = 1.68 [1.22–2.31]) or 1–4 months (OR = 1.45 [1.08–1.96]). Recommendations concerning complementary food were generally followed. However, guidelines should be clarified and adapted to families who have difficulties in adopting them.