Fibre intake and evolution of BMI: from pre-pregnancy to postpartum.
OBJECTIVE
To evaluate the effect of fibre intake on the evolution of maternal BMI from pregnancy to postpartum and to identify dietary patterns associated with fibre intake.


METHODS
Cohort study. Food intake was obtained using an FFQ. Focused principal component analysis was used focusing on the variables: postpartum weight retention and total dietary fibre intake. Poisson regression models with robust variance were built in order to measure the effect of fibre intake during the postpartum period on obesity risk.


METHODS
Primary care clinics in southern Brazil.


METHODS
Pregnant women (n 370) were followed until the 5th month postpartum.


RESULTS
The highest contribution to fibre intake came from the consumption of beans. Consumption of bread and rice indicated a common Brazilian food pattern along with beans. Participants retained a median of 4.4 (interquartile range 0.6, 7.9) kg of weight gained during pregnancy. Obesity risk, defined as an unfavourable evolution of BMI during pregnancy and postpartum, was present in 189 (55.1%) women. Individual food items did not have an important effect on weight retention. In Poisson regression adjusting for maternal age, pre-pregnancy BMI and total gestational weight gain, inadequate postpartum fibre intake increased obesity risk by 24% (relative risk 51.24; 95% CI 1.05, 1.47).


CONCLUSIONS
Important maternal weight retention occurred in these women. Adequate fibre intake may reduce obesity risk in the period following childbirth.
Graduate Studies Program in Epidemiology, Department of Social Medicine, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos no. 2600 - 4° andar - sala 419, CEP 90035-003, Porto Alegre, RS, Brazil. michele.drehmer@gmail.com
Michele
M
Drehmer
Suzi Alves
SA
Camey
Maria Angélica
MA
Nunes
Bruce B
BB
Duncan
Mauro
M
Lacerda
Andréia Poyastro
AP
Pinheiro
Maria Inês
MI
Schmidt
D000328:Adult; D015992:Body Mass Index; D001835:Body Weight; D001938:Brazil; D015331:Cohort Studies; D004043:Dietary Fiber / Q000008:administration & dosage*; D002149:Energy Intake; D005260:Female; D006801:Humans; D018673:Nutrition Policy; D009765:Obesity / Q000517:prevention & control; D016012:Poisson Distribution; D049590:Postpartum Period; D011247:Pregnancy; D012307:Risk Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D016387:Women's Health; D055815:Young Adult