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. 2018 Mar 1;18(1):301.
doi: 10.1186/s12889-018-5184-4.

Dietary patterns are influenced by socio-demographic conditions of women in childbearing age: a cohort study of pregnant women

Juliana Araujo Teixeira  1 , Teresa Gontijo Castro  2   3 , Cameron C Grant  2   3   4 , Clare R Wall  2   5 , Ana Lúcia da Silva Castro  6 , Rossana Pulcineli Vieira Francisco  6 , Sandra Elisabete Vieira  7 , Silvia Regina Dias Medici Saldiva  8 , Dirce Maria Marchioni  9
Affiliations

Dietary patterns are influenced by socio-demographic conditions of women in childbearing age: a cohort study of pregnant women

Juliana Araujo Teixeira et al. BMC Public Health. .

Abstract

Background: Women's health during their reproductive years and whilst pregnant has implications for their children's health, both in utero and during childhood. Associations of women's pre-pregnancy dietary patterns (DP) with maternal socio-demographic characteristics and nutrient intake were investigated in ProcriAr cohort study in São Paulo/Brazil, 2012.

Methods: The DPs of 454 women were investigated by principal component factor analysis, using dietary information from a validated 110-item food frequency questionnaire. Multiple linear regression models identified independent associations between DPs and maternal socio-demographic characteristics and Spearman's correlation determined associations between DPs and nutrients intake.

Results: Participants' mean age was 26.1 years (standard deviation = 6.3), 10.3% had more than 8 years of formal education, 30% were migrants from outside of the Southeast of Brazil, 48% were employed, 13% were smokers, and 51% were overweight/obese. Four DPs were derived: 'Lentils, whole grains and soups,' 'Snacks, sandwiches, sweets and soft drinks,' 'Seasoned vegetables and lean meats,' and 'Sweetened juices, bread and butter, rice and beans'. The 'Lentils, whole grains and soups' score was positively related to maternal age, being non-smoker and born in the South, North or Midwest of Brazil. The 'Snacks, sandwiches, sweets and soft drinks' score was positively related to higher maternal education, and negatively related to age, lack of formal work and being born in the Northeast region. The 'Seasoned vegetables and lean meats' score was positively related to higher maternal education. The 'Sweetened juices, bread and butter, rice and beans' score was positively related to unemployment and to no family history of hypertension, and negatively related to maternal overweight and obesity. Dietary intake of fruits and vegetables, foods that require preparation, nutrients from one-carbon metabolism, protein, iron, calcium and vitamin D were correlated with the 'Seasoned vegetables and lean meats'. Dietary intake of sugar-sweetened and alcoholic beverages, industrialized and takeaway foods, and foods rich in sugar, energy, fat, and synthetic folate were correlated with the 'Snacks, sandwiches, sweets and soft drinks'.

Conclusions: Findings from this study add perspectives to be considered in the implementation of health interventions, which could improve women's nutritional status and provide an adequate environment for the developing fetus.

Keywords: Childbearing age; Dietary pattern; Epidemiology; Principal component analysis; Public health nutrition; Socioeconomic factors.

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Conflict of interest statement

Ethics approval and consent to participate

The approval for this human subject research was granted by the Ethical Committee of the Municipal Department of Health of São Paulo (n° 430/10), the Ethical Committee of the School of Medicine, University of São Paulo (n° 0068/10), and the Ethical Committee of the School of Public Health, University of São Paulo (n° 1.501.677/16). Written informed consent was obtained from all the study participants.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
Description of the sample selection, ProcriAr study – São Paulo/Brazil, 2012
Fig. 2
Fig. 2
Radar graph of the correlationsa (total % of explained varianceb) between energy and nutrients and the dietary patterns, ProcriAr Study (n = 454) - São Paulo/Brazil, 2012. Legends: DHA - docosahexaenoic acid; DFE - dietary folate equivalents. aCorrelation coefficients ≥ 0.09 or ≤ − 0.09 were significantly different from 0 (P ≤ 0.05). bThe variance proportion of energy and nutrient intake explained by the patterns is presented in parentheses
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