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10. Poor maternal anthropometric status before conception is associated with a deleterious infant growth during the first year of life: a longitudinal preconceptional cohort

Author

Agbota, G., Fievet, Nadine, Heude, B., Accrombessi, M., Ahouayito, U., Yovo, E., Dossa, D., Dramane, L., Gartner, Agnès, Ezinmegnon, S., Marcos, J. Y., Vachot, L., Tissieres, P., Massougbodji, A., Martin-Prével, Yves, Cot, Michel, and Briand, Valérie

Subjects
infant growth, maternal anthropometric status, Preconceptional cohort study, pregnancy
Abstract

BACKGROUND: According to the Developmental Origins of Health and Diseases concept, exposures in the preconception period may be critical. For the first time, we evaluated the effect of preconception poor anthropometric status on infant's growth in sub-Saharan Africa. METHODS: A mother-child cohort was followed prospectively from preconception to 1 year old in Benin. Maternal anthropometric status was assessed by prepregnancy body mass index (BMI), approximated by BMI at the first antenatal visit before 7 weeks' gestation, and gestational weight gain (GWG). BMI was categorized as underweight, normal, overweight, and obesity according to World Health Organization standards. GWG was categorized as low (12 kg). In infant, stunting and wasting were defined as length-for-age and weight-for-length z scores less than -2 SD, respectively. We evaluated the association between BMI/GWG and infant's weight and length at birth and during the first year of life, as well as with stunting and wasting at 12 months using mixed linear and logistic regression models. RESULTS: In multivariate, preconceptional underweight was associated with a lower infant's weight at birth and during the first year (-164 g; 95% CI, -307 to -22; and -342 g; 95% CI, -624 to -61, respectively) and with a higher risk of stunting at 12 months (adjusted odds ratio [aOR] = 3.98; 95% CI, 1.01-15.85). Furthermore, preconceptional obesity and a high GWG were associated with a higher weight and length at birth and during the first year. CONCLUSION: Underweight and obesity before conception as well as GWG were associated with infant's growth. These results argue for preventive interventions starting as early as the preconception period to support child long-term health.

Published
2019

14. Cohort profile: effect of malaria in early pregnancy on fetal growth in Benin (RECIPAL preconceptional cohort)

Author

Accrombessi, M., Yovo, E., Cottrell, Gilles, Agbota, G., Gartner, Agnès, Martin-Prével, Yves, Fanou-Fogny, N., Djossinou, D., Zeitlin, J., Tuikue Ndam, Nicaise, Bodeau-Livinec, F., Houze, S., Jackson, N., Ayemonna, P., Massougbodji, A., Cot, Michel, Fievet, Nadine, Briand, Valérie, Mère et enfant en milieu tropical : pathogènes, système de santé et transition épidémiologique (MERIT - UMR_D 216), Institut de Recherche pour le Développement (IRD)-Université Paris Descartes - Paris 5 (UPD5), Université Paris Descartes - Faculté de Pharmacie de Paris (UPD5 Pharmacie), Université Paris Descartes - Paris 5 (UPD5), Nutrition et Alimentation des Populations aux Suds (NutriPass), Institut de Recherche pour le Développement (IRD)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Recherche Epidémiologique en Santé Périnatale et Santé des Femmes et des Enfants (UMR_S 953), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherche pour le Développement (IRD)-Université de Paris (UP), Equipe 1 : EPOPé - Épidémiologie Obstétricale, Périnatale et Pédiatrique (CRESS - U1153), Université Paris Descartes - Paris 5 (UPD5)-Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA), École des Hautes Études en Santé Publique [EHESP] (EHESP), Département Méthodes quantitatives en santé publique (METIS), laboratoire parasitologie, CHU Bichat Paris, Ministère de la santé, parasitology and mycology education, Science and health faculty, Mère et enfant face aux infections tropicales (MERIT - UMR_D 216), Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Communautés d’universités et établissements Sorbonne Paris Cité (COMUE Sorbonne Paris Cité), Université Sorbonne Paris Cité (USPC)-Chimie ParisTech-Paris Sciences et Lettres (PSL), Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris Descartes - Paris 5 (UPD5)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Facultés des sciences pharmaceutiques et biologiques, Mother and Child Health in the Tropics (UR010), Institut de Recherche pour le Développement (IRD), Zodiac Aerosafty Systems, Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Mère et enfant en milieu tropical : pathogènes, système de santé et transition épidémiologique (MERIT - UMR_D 261), Institut de Recherche pour le Développement (IRD)-Université Paris Cité (UPCité), and Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD)

Subjects
Adult, Male, Epidemiology, Gestational Age, Fetal growth, Kaplan-Meier Estimate, Cohort profile, Ultrasonography, Prenatal, Cohort Studies, Fetal Development, Young Adult, Fetus, Nutritional status, Pregnancy, Benin, Humans, Pregnancy Complications, Infectious, Infant, Newborn, Pregnancy Outcome, Ultrasonography, Doppler, Malaria, Pregnancy Trimester, First, Logistic Models, Africa, Premature Birth, Female, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Longitudinal pre-conceptional cohort
Abstract

International audience; Purpose REtard de Croissance Intra-uterin et PALudisme (RECIPAL) is an original preconceptional cohort designed to assess the consequences of malaria during the first trimester of pregnancy, which is a poorly investigated period in Africa and during which malaria may be detrimental to the fetus.Participants For this purpose, a total of 1214 women of reproductive age living in Sô-Ava and Akassato districts (south Benin) were followed up monthly from June 2014 to December 2016 until 411 of them became pregnant. A large range of health determinants was collected both before and during pregnancy from the first weeks of gestation to delivery. Five Doppler ultrasound scans were performed for early dating of the pregnancy and longitudinal fetal growth assessment.Findings to date Pregnant women were identified at a mean of 6.9 weeks of gestation (wg). Preliminary results confirmed the high prevalence of malaria in the first trimester of pregnancy, with more than 25.4% of women presenting at least one microscopic malarial infection during this period. Most infections occurred before six wg. The prevalence of low birth weight, small birth weight for gestational age (according to INTERGROWTH-21st charts) and preterm birth was 9.3%, 18.3% and 12.6%, respectively.Future plans REtard de Croissance Intra-uterin et PALudisme (RECIPAL) represents at this time a unique resource that will provide information on multiple infectious (including malaria), biological, nutritional and environmental determinants in relation to health outcomes in women of reproductive age, pregnant women and their newborns. It will contribute to better define future recommendations for the prevention of malaria in early pregnancy and maternal malnutrition in Africa. It confirms that it is possible to constitute a preconceptional pregnancy cohort in Africa and provides valuable information for researchers starting cohorts in the future.

Published
2018

15. Poor maternal anthropometric status before conception is associated with a deleterious infant growth during the first year of life: a longitudinal preconceptional cohort

Author

Agbota, Gino, primary, Fievet, Nadine, additional, Heude, Barbara, additional, Accrombessi, Manfred, additional, Ahouayito, Urbain, additional, Yovo, Emmanuel, additional, Dossa, Djamirou, additional, Dramane, Latifou, additional, Gartner, Agnès, additional, Ezinmègnon, Sem, additional, Yugueros Marcos, Javier, additional, Vachot, Laurence, additional, Tissières, Pierre, additional, Massougbodji, Achille, additional, Martin‐Prével, Yves, additional, Cot, Michel, additional, and Briand, Valérie, additional

Published
2019
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16. Effects of Malaria in the First Trimester of Pregnancy on Poor Maternal and Birth Outcomes in Benin

Author

Accrombessi, Manfred, primary, Yovo, Emmanuel, additional, Fievet, Nadine, additional, Cottrell, Gilles, additional, Agbota, Gino, additional, Gartner, Agnès, additional, Martin-Prevel, Yves, additional, Vianou, Bertin, additional, Sossou, Darius, additional, Fanou-Fogny, Nadia, additional, Djossinou, Diane, additional, Massougbodji, Achille, additional, Cot, Michel, additional, and Briand, Valérie, additional

Published
2018
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19. Changes in women's dietary diversity before and during pregnancy in Southern Benin.

Author

Djossinou, Diane R. A., Savy, Mathilde, Fanou‐Fogny, Nadia, Landais, Edwige, Accrombessi, Manfred, Briand, Valérie, Yovo, Emmanuel, Hounhouigan, D. Joseph, Gartner, Agnès, and Martin‐Prevel, Yves

Subjects
DIET & psychology, FISHES, FOOD habits, GRAIN, INGESTION, LONGITUDINAL method, MULTIVARIATE analysis, PRECONCEPTION care, PREGNANCY & psychology, PRENATAL care, QUESTIONNAIRES, REGRESSION analysis, RESEARCH funding, STATISTICS, VEGETABLES, SOCIOECONOMIC factors, DATA analysis software, DESCRIPTIVE statistics, PREGNANCY
Abstract

Dietary diversity before and during pregnancy is crucial to ensure optimal foetal health and development. We carried out a cohort study of women of reproductive age living in the Sô‐Ava and Abomey‐Calavi districts (Southern Benin) to investigate women's changes in dietary diversity and identify their determinants both before and during pregnancy. Nonpregnant women were enrolled (n = 1214) and followed up monthly until they became pregnant (n = 316), then every 3 months during pregnancy. One 24‐hr dietary recall was administered before conception and during each trimester of pregnancy. Women's dietary diversity scores (WDDS) were computed, defined as the number of food groups out of a list of 10 consumed by the women during the past 24 hr. The analysis included 234 women who had complete data. Mixed‐effects linear regression models were used to examine changes in the WDDS over the entire follow‐up, while controlling for the season, subdistrict, socio‐demographic, and economic factors. At preconception, the mean WDDS was low (4.3 ± 1.1 food groups), and the diet was mainly composed of cereals, oils, vegetables, and fish. The mean WDDS did not change during pregnancy and was equally low at all trimesters. Parity and household wealth index were positively associated with the WDDS before and during pregnancy in the multivariate analysis. Additional research is needed to better understand perceptions of food consumption among populations, and more importantly, efforts must be made to encourage women and communities in Benin to improve the diversity of their diets before and during pregnancy. [ABSTRACT FROM AUTHOR]

Published
2020
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20. Effects of Malaria in the First Trimester of Pregnancy on Poor Maternal and Birth Outcomes in Benin.

Author

Accrombessi, Manfred, Yovo, Emmanuel, Fievet, Nadine, Cottrell, Gilles, Agbota, Gino, Gartner, Agnès, Martin-Prevel, Yves, Vianou, Bertin, Sossou, Darius, Fanou-Fogny, Nadia, Djossinou, Diane, Massougbodji, Achille, Cot, Michel, and Briand, Valérie

Subjects
ANEMIA, MALARIA prevention, PREGNANCY complication risk factors, BIRTH size, LOW birth weight, CONFIDENCE intervals, GESTATIONAL age, INFANT health services, PREMATURE infants, MALARIA, EVALUATION of medical care, PATH analysis (Statistics), PRECONCEPTION care, FIRST trimester of pregnancy, THIRD trimester of pregnancy, PREGNANT women, RISK assessment, REPRODUCTIVE health, DISEASE prevalence, ODDS ratio, DISEASE complications, PREGNANCY, DISEASE risk factors
Abstract

Background In sub-Saharan Africa, malaria in the first half of pregnancy is harmful for both the mother and her fetus. However, malaria in the first trimester of pregnancy, when women are usually not protected against malaria, has been little investigated. For the first time, we assessed the effects of malaria in the first trimester on maternal and birth outcomes using a preconceptional study design. Methods From June 2014 to March 2017, 1214 women of reproductive age were recruited and followed monthly until 411 became pregnant. The pregnant women were then followed from 5–6 weeks of gestation until delivery. Path analysis was used to assess the direct effect (ie, not mediated by malaria in the second or third trimester) of malaria in the first trimester on maternal anemia and poor birth outcomes. The cumulative effect of infections during pregnancy on the same outcomes was also evaluated. Results The prevalence of malaria infections in the first trimester was 21.8%. Malaria in the first trimester was significantly associated with maternal anemia in the third trimester (adjusted odds ratio 2.25, 95% confidence interval 1.11–4.55). While we did not find evidence of any direct effect of first trimester malaria infections on birth outcomes, their association with infections later in pregnancy tended to increase the risk of low birth weights. Conclusions Malaria infections in the first trimester were highly prevalent and have deleterious effects on maternal anemia. They highlight the need for additional preventive measures, starting in early pregnancy or even before conception. [ABSTRACT FROM AUTHOR]

Published
2019
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22. Gender inequalities in excess adiposity and anaemia combine in a large double burden of malnutrition gap detrimental to women in an urban area in North Africa

Author

Traissac, Pierre, Ati, Jalila, Gartner, Agnès, Gharbia, Houda, Delpeuch, Francis, Nutrition et Alimentation des Populations aux Suds (NutriPass), Institut de Recherche pour le Développement (IRD)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), and Institut National de Nutrition et de Technologie Alimentaire (Tunis) (INNTA)

Subjects
Middle East and North Africa, Gender, Anaemia, Overweight, [SHS.GENRE]Humanities and Social Sciences/Gender studies, TUNISIE, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Double burden of malnutrition
Abstract

International audience; Objective: The nutrition transition has exacerbated the gender gap in health in the Middle East and North Africa region as the increase in excess adiposity has been much higher among women than men. This is not exclusive of the persistence of anaemia, generally also more prevalent among women. We assessed the magnitude and sociodemographic factors associated with gender inequality vis-a-vis the double burden of excess adiposity and anaemia. Design: Cross-sectional study, stratified two-stage cluster sample. BMI (= weight/height(2)) >= 25.0 kg/m(2) defined overweight and BMI >= 30.0 kg/m(2) obesity. Anaemia was defined as Hb < 120 g/l for women, < 130 g/l for men. Gender inequalities vis-a-vis the within-subject coexistence of excess adiposity and anaemia were assessed by women v. men relative prevalence ratios (RPR). Their variation with sociodemographic characteristics used models including gender x covariate interactions. Setting: Greater Tunis area in 2009-2010. Subjects: Adults aged 20-49 years (women, n 1689; men, n 930). Results: Gender inequalities in excess adiposity were high (e.g. overweight: women 64.9% v. men 48.4%; RPR = 2.1; 95% CI 1.6, 2.7) and much higher for anaemia (women 38.0% v. men 7.2%; RPR = 8.2; 95% CI 5.5, 12.4). They were striking for overweight and anaemia (women 24.1% v. men 3.4%; RPR = 16.2; 95% CI 10.3, 25.4). Gender inequalities in overweight adjusted for covariates increased with age but decreased with professional activity and household wealth score; gender inequality in anaemia or overweight and anaemia was more uniformly distributed. Conclusions: Women were much more at risk than men, from both over-and undernutrition perspectives. Both the underlying gender-related and sex-linked biological determinants of this remarkable double burden of malnutrition inequality must be addressed to promote gender equity in health.

Published
2016

24. Intra-household double burden of malnutrition in a North African nutrition transition context: magnitude and associated factors of child anaemia with mother excess adiposity.

Author

Sassi, Sonia, Abassi, Mohamed Mehdi, Traissac, Pierre, Ben Gharbia, Houda, Gartner, Agnès, Delpeuch, Francis, and El Ati, Jalila

Subjects
CHILDHOOD obesity, ANEMIA in children, MALNUTRITION in children, SOCIODEMOGRAPHIC factors, LIFESTYLES
Abstract

Objective: In the Middle East and North Africa region, the nutrition transition has resulted in drastic increases in excess adiposity, particularly among women, while some types of undernutrition remain prevalent, especially among pre-school children. We assessed the magnitude, nature and associated factors of the within-household co-occurrence of anaemia in children and excess adiposity in mothers.Design: Cross-sectional survey using stratified two-stage random cluster sampling to survey households with women aged 20-49 years. BMI≥25·0 kg/m2 defined overweight and BMI≥30·0 kg/m2 obesity, while anaemia for children was defined as Hb<110 g/l. The associations between child anaemia and mother excess adiposity, and sociodemographic and lifestyle factors were estimated by multinomial regression.Setting: Greater Tunis area, Tunisia, in 2009-2010.Subjects: Children aged 6-59 months living with their 20-49-year-old mothers (437 child-mother pairs).Results: The most prevalent double burden of malnutrition in child-mother pairs by far was the anaemic child and overweight mother (24·4 %; 95 % CI 20·1, 29·3 %). A significant proportion of pairs were anaemic child and obese mother (14·4 %; 95 % CI 11·0, 18·5 %). The co-occurrence of anaemia in child and excess adiposity in mother was neither synergetic nor antagonistic (P=0·59 and 0·40 for anaemia-overweight and anaemia-obesity, respectively). This double burden was more frequent among child-mother pairs with younger children, with mothers of higher parity and higher energy intakes.Conclusions: The high prevalence of anaemic child and overweight or obese mother requires special attention e.g. through interventions which simultaneously target both types of malnutrition within the same household. [ABSTRACT FROM AUTHOR]

Published
2019
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28. Coexistence de surpoids/obésité et d'anémie chez les femmes de Rabat-Salé

Author

El Hsaïni, H., Gartner, Agnès, Berger, Jacques, Aguenaou, H., Landais, Edwige, Ayyat, O., Maire, Bernard, El Ati, J., Delpeuch, Francis, El Kabbaj, S., and Bour, A.

Subjects
OBESITE, NIVEAU D'INSTRUCTION, MALNUTRITION, ENQUETE NUTRITIONNELLE, SOUS ALIMENTATION, NIVEAU DE VIE, ENFANT, ANTHROPOMETRIE NUTRITIONNELLE, FEMME, STATUT SOCIOECONOMIQUE, ANEMIE, ETAT MATRIMONIAL, MILIEU URBAIN, ENQUETE DEMOGRAPHIQUE ET DE SANTE
Published
2013

29. Activité physique habibuelle des femmes de Rabat-Salé et relation avec leurs caractéristiques sociodémographiques

Author

Ayyat, O., Gartner, Agnès, El Ati, J., Mokhtar, N., Aguenaou, H., Landais, Edwige, El Hsaïni, H., Maire, Bernard, Delpeuch, Francis, and Bour, A.

Subjects
OBESITE, NIVEAU D'INSTRUCTION, PREVENTION SANITAIRE, NIVEAU DE VIE, ENFANT, ANTHROPOMETRIE NUTRITIONNELLE, FEMME, STATUT SOCIOECONOMIQUE, REGRESSION, ENQUETE, ACTIVITE PHYSIQUE, ETAT MATRIMONIAL, HABITAT, MILIEU URBAIN, ENQUETE DEMOGRAPHIQUE ET DE SANTE
Published
2013

30. European nutrition conference

Author

Gartner Agnès, Bour, A., Maire, Bernard, El Hsaini, H., Landais, Edwige, Traissac, Pierre, Ayyat, O., Goumir, S., Berger, Jacques, Delpeuch, Francis, Marcos, A. (ed.), Martinez, J.A. (ed.), Gil, A. (ed.), Farré, R. (ed.), and Lairon, D. (ed.)

Subjects
MALADIES ASSOCIEES, GLYCEMIE, HYPERTENSION ARTERIELLE, FEMME, METABOLISME, ETAT NUTRITIONNEL, MILIEU URBAIN
Published
2011

31. Abdominal vs. overall obesity among women in a nutrition transition context: geographic and socio-economic patterns of abdominal-only obesity in Tunisia

Author

Traissac, Pierre, primary, Pradeilles, Rebecca, additional, El Ati, Jalila, additional, Aounallah-Skhiri, Hajer, additional, Eymard-Duvernay, Sabrina, additional, Gartner, Agnès, additional, Béji, Chiraz, additional, Bougatef, Souha, additional, Martin-Prével, Yves, additional, Kolsteren, Patrick, additional, Delpeuch, Francis, additional, Ben Romdhane, Habiba, additional, and Maire, Bernard, additional

Published
2015
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32. European nutrition conference

Author

Dioum, A., Gartner, Agnès, Cissé, A.S., Delpeuch, Francis, Maire, Bernard, Schutz, Y., Wade, S., Guilloteau, P. (ed.), Lemonier, D. (ed.), and Lairon, D. (ed.)

Subjects
IMPEDANCE BIOELECTRIQUE, EAU CORPORELLE, ANTHROPOMETRIE NUTRITIONNELLE, ETUDE CORPORELLE, FEMME, GROUPE ETHNIQUE
Published
2007

43. Obesity and Association with Area of Residence, Gender and Socio-Economic Factors in Algerian and Tunisian Adults

Author

Atek, Madjid, primary, Traissac, Pierre, additional, El Ati, Jalila, additional, Laid, Youcef, additional, Aounallah-Skhiri, Hajer, additional, Eymard-Duvernay, Sabrina, additional, Mézimèche, Nadia, additional, Bougatef, Souha, additional, Béji, Chiraz, additional, Boutekdjiret, Leila, additional, Martin-Prével, Yves, additional, Lebcir, Hassiba, additional, Gartner, Agnès, additional, Kolsteren, Patrick, additional, Delpeuch, Francis, additional, Romdhane, Habiba Ben, additional, and Maire, Bernard, additional

Published
2013
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47. Sensitivity and specificity of the body mass index to assess low percent fat in African women

Author

Gartner, Agnès, Maire, Bernard, Traissac, Pierre, Massamba, J.P., Kameli, Yves, Keraudren, V., and Delpeuch, Francis

Subjects
ENFANT, ANTHROPOMETRIE NUTRITIONNELLE, INDICATEUR NUTRITIONNEL, FEMME, BMI.BODY MASS INDEX, POPULATION RURALE, BF.BODY FAT, ENQUETE NUTRITIONNELLE, BIA.BIOELECTRICAL IMPEDANCE ANALYSIS, DEFICIENCE
Abstract

The objective of this study was to evaluate the ability of the body mass index (BMI, kg/m2) to reflect low percent body fat (%BF) in a population with a rather mild but widespread prevalence of low BMI. A sample of 586 women was studied in the Plateau Koukouya, a rural area of the Republic of Congo, Central Africa. Percent BF was estimated from bio-electrical impedance (BIA). BIA parameters were assumed to reflect lean body mass. The correlation between %BF and BMI was high (r = 0.84; P is less than 0.001). Low %BF or low BIA parameters were defined as the first quartile of value of BMI is less than 18.5, an accepted international cutoff for thinness, in relation to %BF was 58.5%, 93.6%, 75.4%, and 87.1%, respectively. A continuous sensitivity/specificity analysis (receiver operator characteristic (ROC) curves) for characterizing low %BF or low BIA parameters was done for a large range of BMI values. ROC curve analysis for %BF suggested that an acceptable trade-off between sensitivity (89.8%) and specificity (77.9%) occurred at a BMI of 19.7 kg/m2. However, the positive predictive value was low (57.6%). For the prediction of low BIA parameters, results were similar, showing moderate sensitivity and high specificity for BMI is less than 18.5, a cutoff point of BMI = 19.6, and low positive predictive values (less than 48%). The data suggest that BMI was not a good predictor of low %BF. This is consistent with the assumption of a decrease in both fat and fat free body mass in cases of low BMI. (Résumé d'auteur)

Published
2000

48. International congress of nutrition

Author

Gartner, Agnès, Dhur, A., Fouéré, Thierry, Kameli, Yves, Ndiaye, B., Traissac, Pierre, Delpeuch, Francis, and Maire, Bernard

Subjects
FACTEUR SOCIOECONOMIQUE, ENFANT, ANTHROPOMETRIE NUTRITIONNELLE, STRUCTURE FAMILIALE, ETUDE REGIONALE, MALNUTRITION, PAUVRETE
Published
1997

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