Association Between Maternal Multivitamin Use and Preterm Birth in 24 States, Pregnancy Risk Assessment Monitoring System, 2009–2010

Johnston, Emily; Sharma, Andrea J.; Abe, Karon

doi:10.1007/s10995-016-1985-1

Cited by 11 publications

(11 citation statements)

References 30 publications

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“…Consistent with the literature, we found that the use of supplements in general was more prevalent among white women [29, 35], older women [34, 35], those with a higher education level [9, 14, 29] and those with a higher income [15, 24, 29]. Although these characteristics suggest some inequality, their differences were not significant.…”

Section: Discussionsupporting

confidence: 85%

“…Unlike the use of iron salts, the use of folic acid and other vitamins and minerals reflected different user profiles, i.e., white, wealthier and more educated [9, 13–16, 26, 35]. This difference could be due to the fact that poorer mothers seek health services later in pregnancy when folic acid would no longer be recommended, whereas mothers with better purchasing power and greater access to information would tend to have a planned pregnancy and, thus, a greater chance of beginning antenatal care (and supplementation) early in T1 [15, 16].…”

Section: Discussionmentioning

confidence: 99%

“…Calcium is associated with reduced risks of pre-eclampsia, low birth weight and premature birth [1]. Supplementation with other minerals, such as copper, selenium, magnesium and zinc, has also been shown to reduce labor complications and contribute to fetal development [1, 2, 9].…”

Section: Introductionmentioning

confidence: 99%

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The use of folic acid, iron salts and other vitamins by pregnant women in the 2015 Pelotas birth cohort: is there socioeconomic inequality?

Miranda

Pizzol²,

Silveira

et al. 2019

BMC Public Health

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Background Many low- and middle-income countries recommend micronutrient supplements for pregnant women to improve their nutritional status, prevent possible deficiencies and avoid fetal healgth consequences. This study evaluated the influence of socioeconomic status on the use of folic acid, iron salts and other vitamins and minerals among pregnant women in the 2015 Pelotas Birth Cohort. Methods This population-based birth cohort study was carried out with 4270 women. Participants were interviewed during pregnancy and at the maternity hospital about the antenatal period; including the use of iron salts, vitamins and other minerals. Descriptive analyses were performed to characterize the sample. The analyses were adjusted according to socioeconomic variables (maternal education, ethnicity, household income). Results The overall prevalence of the use of folic acid, iron salts or other vitamins and minerals was 91.0% (95% CI: 90.1–91.8). Specifically, 70.9% (95% CI: 69.5–72.3) used folic acid, 72.9% (95% CI: 71.5–74.3) used iron compounds, and 31.8% (95% CI: 30.3–33.2) used other vitamins or minerals. In the adjusted analysis, the use of iron salts was associated with nonwhite mothers, with ≤4 years of education and whose family income was less than or equal to the monthly minimum wage. The use of folic acid and other vitamins and minerals was associated with white mothers who were more highly educated and had a higher family income. Conclusion Although folic acid and other vitamins and minerals were more frequently used in white, richer and more educated mothers, which indicates inequality, iron supplements were more frequently used in the poorer, less educated nonwhite mothers, suggesting the opposite association for this supplement.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

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The use of folic acid, iron salts and other vitamins by pregnant women in the 2015 Pelotas birth cohort: is there socioeconomic inequality?

Miranda

Pizzol²,

Silveira

et al. 2019

BMC Public Health

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“…Maternal nutrition is a key factor for the health of the mother and for fetal development. Conditions such as preeclampsia, anemia, neural tube defects, depression and cognitive dysfunction are associated with lack of proper intake of folic acid [3,4], iron [5], calcium [6],vitamin D and iodine [7,8]. Poor nutrition during fetal development has long been demonstrated by Barker to have long term effects later in the adult life of the offspring [9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of questionnaire as an instrument to measure the level of nutritional and weight gain knowledge in pregnant women in Poland. A pilot study

Mierzejewska¹,

Honorato-Rzeszewicz²,

Świątkowska³

et al. 2020

PLoS ONE

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Pregnancy is a period in life in which women are willing to improve their lifestyle. Providing proper information for these women is crucial for their health and the health of their offspring. Clear information about weak points in their nutritional and weight gain knowledge is the first step for proper health care assistance. There are a few previous studies evaluating the nutritional and weight gain knowledge of pregnant women. In the few studies available, different approaches were taken and there was no wider discussion on the content of the questionnaires attempting to measure level of knowledge. The aim of this study, designed in a pilot fashion, was to test the adequacy of the questionnaire as a research instrument in a group of 139 pregnant Polish women. The developed instrument is a 33-item questionnaire comprising four domains: weight gain, importance of nutrients, quality and quantity of food intake. The results of this study indicate that the questionnaire is stable and internal consistency is acceptable (Cronbach's alpha > 0.7) for dimensions with more than four items. For dimensions with less than four items, internal consistency was poor (Cronbach's alpha < 0.7). The cumulative explained variance for domains weight gain, importance of nutrients, quantity and quality of food intake was 54.74%, 42.74%, 54.42% and 48.99% respectively. Results from validity, reliability and factor analysis indicate that the questionnaire is adequate for its purpose.

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“…6,10,12,13,[15][16][17] Overall, these studies found higher medication intake (prescription and/or nonprescription) and dietary supplement use in non-Hispanic white women compared with other racial/ethnic groups in the month before or during pregnancy. 6,7,10,12,[15][16][17][18][19] However, many studies were based on retrospective design with the recall of supplement/medication use after knowledge of birth outcomes, whereas our study is strengthened by its prospective data collection and longitudinal design. The Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Fetal Growth Studies-Singleton cohort is ideal for investigating race/ethnic differences in prenatal supplement and medication use because it is a well-characterized, racially/ethnically diverse, and low-risk cohort of pregnant women without pre-pregnancy chronic conditions, which reduces some of the issues with potential confounding that exist in prior literature.…”

mentioning

confidence: 95%

Racial/Ethnic Differences in Prenatal Supplement and Medication Use in Low-Risk Pregnant Women

et al. 2020

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Objective This study aimed to describe the overall quantity and type of supplements and medications used during pregnancy in a low-risk cohort and to examine any racial/ethnic differences in intake. Study Design We used data from 2,164 racially/ethnically diverse, nonobese, and low-risk pregnant women participating without pre-pregnancy chronic conditions in a prospective cohort study at 12 sites across the United States. Medication data were self-reported as free text in enrollment, follow-up visit questionnaires, and abstracted from medical records at delivery. Supplements and medications data were mapped to their active ingredients and categorized into corresponding classes using the Slone Drug Dictionary. The total number and classes of supplements and medications consumed during pregnancy were calculated. Modified Poisson regression models were used to estimate the racial/ethnic differences in supplements and medications intake. All models were adjusted for maternal sociodemographic factors and study site. Results 98% of women took at least one supplement during pregnancy, with prenatal vitamins/multivitamins being most common. While only 31% reported taking no medications during pregnancy, 23% took one, 18% took two, and 28% took three or more. The percentage of women taking at least one medication during pregnancy was highest among non-Hispanic white women and lowest among Asians (84 vs. 55%, p < 0.001). All racial/ethnic groups reported taking the same top four medication classes including central nervous system agents, gastrointestinal drugs, anti-infective agents, and antihistamines. Compared with non-Hispanic white women, Hispanic (adjusted relative risk [aRR]: 0.84, 95% confidence interval [CI]: 0.71–0.98), and Asian women (aRR: 0.83, 95% CI: 0.70–0.98) were less likely to take central nervous system agents, as well as gastrointestinal drugs (Hispanics aRR: 0.79, 95% CI: 0.66–0.94; Asians aRR = 0.75, 95% CI: 0.63–0.90), and antihistamines (Hispanics aRR: 0.65, 95% CI: 0.47–0.92). Conclusion Supplement intake was nearly universal. Medication use was also common among this low-risk pregnancy cohort and differed by race/ethnicity. ClinicalTrials.gov Identifier NCT00912132. Key Points

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Association Between Maternal Multivitamin Use and Preterm Birth in 24 States, Pregnancy Risk Assessment Monitoring System, 2009–2010

Cited by 11 publications

References 30 publications

The use of folic acid, iron salts and other vitamins by pregnant women in the 2015 Pelotas birth cohort: is there socioeconomic inequality?

The use of folic acid, iron salts and other vitamins by pregnant women in the 2015 Pelotas birth cohort: is there socioeconomic inequality?

Evaluation of questionnaire as an instrument to measure the level of nutritional and weight gain knowledge in pregnant women in Poland. A pilot study

Racial/Ethnic Differences in Prenatal Supplement and Medication Use in Low-Risk Pregnant Women

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