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1.
Breastfeed Med ; 2024 May 29.
Article in English | MEDLINE | ID: mdl-38808467

ABSTRACT

Objective: The objective of the study was to estimate associations between early-life human milk feeding and ultraprocessed food (UPF) intake at two timepoints during toddlerhood among children born at <35 weeks' gestation. Study Design: Children were enrolled in the Omega Tots trial (2012-2017, Ohio) at 10-17 months' corrected age after having discontinued human milk and formula feeding. Caregivers reported children's human milk feeding history at baseline and past month diet through a food frequency questionnaire at baseline and follow-up (180 days later). We used the NOVA classification system to estimate UPF intake. We estimated covariate-adjusted associations between human milk feeding (ever and duration) and UPF intake at baseline and follow-up using linear and logistic regression. Results: Nearly 89% (n = 295) of 333 toddlers had received human milk but only 4.2% (n = 14) were fed exclusively human milk to 6 months of age. UPFs represented 37.7 (standard deviation [SD] = 13.2)% and 43.4 (SD = 11.3)% of total calories at the two timepoints. Human milk feeding (exclusive or otherwise) was unassociated with UPF intake in toddlerhood (e.g., months of exclusive human milk feeding with the number of daily servings of UPFs at follow-up: ß=-0.09, 95% confidence interval [CI]: -0.26, 0.08). Conclusion: In this sample of toddlers born preterm, any exposure to as well as the duration of human milk feeding was unassociated with UPF intake during the second year of life. These results require replication in larger samples given the small number of children in some human milk feeding categories.

2.
Matern Child Health J ; 28(2): 206-213, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37934328

ABSTRACT

INTRODUCTION: Twin gestations have greater nutritional demands than singleton gestations, yet dietary intakes of women with twin gestations have not been well described. METHODS: In a prospective, multi-site US study of 148 women with dichorionic twin gestations (2012-2013), we examined longitudinal changes in diet across pregnancy. Women completed a food frequency questionnaire during each trimester of pregnancy. We examined changes in means of total energy and energy-adjusted dietary components using linear mixed effects models. RESULTS: Mean energy intake (95% CI) across the three trimesters was 2010 kcal/day (1846, 2175), 2177 kcal/day (2005, 2349), 2253 kcal/day (2056, 2450), respectively (P = 0.01), whereas the Healthy Eating Index-2010 was 63.9 (62.1, 65.6), 64.5 (62.6, 66.3), 63.2 (61.1, 65.3), respectively (P = 0.53). DISCUSSION: Women with twin gestations moderately increased total energy as pregnancy progressed, though dietary composition and quality remained unchanged. These findings highlight aspects of nutritional intake that may need to be improved among women carrying twins.


Subject(s)
Diet , Pregnancy, Twin , Pregnancy , Female , Humans , United States , Prospective Studies , Energy Intake , Eating
3.
Acta Paediatr ; 112(7): 1453-1460, 2023 07.
Article in English | MEDLINE | ID: mdl-36905082

ABSTRACT

AIM: The aim of the study was to examine prospective associations of sleep characteristics (duration, timing, quality) with dietary and anthropometric measures among toddlers born preterm (<35 weeks). METHODS: Children participated in the Omega Tots trial at 10-17 months' corrected age (Ohio, USA; 26 April 2012 to 6 April 2017). Caregivers reported toddlers' sleep at baseline using the Brief Infant Sleep Questionnaire. After 180 days, caregivers reported toddlers' past month diet in a food frequency questionnaire, and anthropometry was measured using standardised protocols. The toddler diet quality index (TDQI: higher scores indicating better quality), and weight-for-length, triceps skinfold and subscapular skinfold z-scores were calculated. Linear and logistic regression assessed adjusted associations with dietary and anthropometric outcomes at 180-day follow-up (n = 284), and linear mixed models assessed changes in anthropometry. RESULTS: Daytime sleep was associated with lower TDQI (ßadj per hour = -1.62 (95% CI: -2.71, -0.52)) whereas night-time sleep was associated with higher TDQI (ßadj  = 1.01 (95% CI: 0.16, 1.85)). Night-time awakenings and caregiver-reported sleep problems were also associated with lower TDQI. Night awakening duration and sleep-onset latency were associated with higher triceps skinfold z-score. CONCLUSION: Daytime and night-time caregiver-reported sleep showed opposite associations with diet quality, suggesting that sleep timing may be important.


Subject(s)
Sleep Quality , Sleep , Infant, Newborn , Infant , Female , Pregnancy , Humans , Child, Preschool , Parturition , Diet , Anthropometry
4.
Acad Pediatr ; 23(1): 117-122, 2023.
Article in English | MEDLINE | ID: mdl-35921996

ABSTRACT

OBJECTIVE: To examine the association of caregivers' concern about children's overweight and obesity status with family structure (grandparent versus parent-headed households). METHODS: Caregivers reported their relation to the child aged 10 to 17 years and the child's weight and height (National Survey of Children's Health 2016-20). Overweight/obesity was calculated using Centers for Disease Control and Prevention growth charts. We estimated associations (prevalence odds ratio) of residing in a grandparent-headed household with lack of weight concern (responding "Yes, it's too low" or "No, not concerned" to "Are you concerned about this child's weight?") among propensity score-matched children with overweight and obesity. Covariates included child's sex, race, ethnicity, age, family poverty ratio, primary household language, highest level of education among reported adults, caregiver mental and emotional health, usual source of care and survey year. RESULTS: The prevalence of child overweight/obesity was higher in grandparent-headed households. Among children with overweight/obesity, 64.65 (SE = 3.27)% of grandparents and 66.55 (SE = 0.81)% of parents did not express concern about the child's weight status. Among children with obesity, it was 52.42 (SE = 4.63)% and 49.04 (SE = 1.28)%, respectively. Family structure was not associated with caregiver lack of weight concern in propensity score-matched samples. CONCLUSIONS: Appropriate caregiver concern about child's weight status was low in both grandparent and parent-headed households in the United States.


Subject(s)
Grandparents , Pediatric Obesity , Adult , Child , Humans , United States/epidemiology , Overweight/epidemiology , Grandparents/education , Grandparents/psychology , Caregivers , Body Mass Index , Pediatric Obesity/epidemiology , Parents/psychology , Surveys and Questionnaires
5.
Diabetes Care ; 45(9): 2028-2036, 2022 09 01.
Article in English | MEDLINE | ID: mdl-35852359

ABSTRACT

OBJECTIVE: Ultraprocessed foods (UPFs) have been linked with obesity and cardiometabolic diseases in the general population but are understudied in pregnancy. We examined associations of UPF intake with gestational weight gain (GWG), glycemic, and blood pressure outcomes in pregnancy. RESEARCH DESIGN AND METHODS: Pregnant women (n = 1,948) in a prospective U.S. cohort self-reported the past 3-month diet using a food frequency questionnaire (FFQ) at 8-13 weeks of gestation. The intake quantity (g/day) of foods and beverages identified as UPFs was ranked into quartiles. Associations of UPFs were evaluated, after adjusting for confounders, with 2nd and 3rd trimester Institute of Medicine (IOM) GWG categories, gestational diabetes mellitus (GDM), and hypertensive disorders of pregnancy (GHTN). Secondary outcomes included GWG rate, glucose challenge test 1-h glucose, and blood pressure trajectories from linear mixed models. RESULTS: A total of 492 (25.2%) and 699 women (35.9%) had 2nd and 3rd trimester excessive GWG, respectively, and 85 women (4.4%) had GDM and 63 (3.2%) had severe hypertension or preeclampsia. UPF intake was not associated with higher odds of excessive GWG (quartile 4 vs. 1: adjusted odds ratio 0.68 [95% CI 0.44, 1.05], P-trend = 0.10 for 2nd trimester) or GDM risk (quartile 4 vs. 1: adjusted risk ratio 0.99 [95% CI 0.46, 2.11], P-trend = 0.85). Although UPF intake was positively associated with minor differences blood pressure trajectories, associations with GHTN were null. CONCLUSIONS: The expected unfavorable association of higher UPF intake with excessive GWG, GDM, and GHTN was not observed in our cohort of low-risk pregnant women. These results are based on a limited sample size and require replication.


Subject(s)
Diabetes, Gestational , Hypertension , Blood Glucose , Body Mass Index , Diabetes, Gestational/epidemiology , Eating , Female , Humans , Pregnancy , Pregnancy Trimester, First , Prospective Studies
6.
Med Sci Sports Exerc ; 54(9): 1466-1475, 2022 09 01.
Article in English | MEDLINE | ID: mdl-35482764

ABSTRACT

INTRODUCTION: Exercise in pregnancy is associated with many perinatal benefits, but patterns of home, work, and commuting activity are not well described. We investigated longitudinal activity in singleton and twin pregnancy by activity domain and maternal characteristics. METHODS: In the National Institute of Child Health and Human Development Fetal Growth Studies cohorts, 2778 women with singleton and 169 women with twin gestations reported activity using the Pregnancy Physical Activity Questionnaire at up to six or seven study visits, respectively. Metabolic equivalent of task-hours per week (MET-h·wk -1 ) was calculated from reported activity. Baseline measurements (obtained between 10 and 13 wk) reflected past year activity. Linear mixed models estimated MET-h·wk -1 by domain (household/childcare, occupational, inactive, transportation, sports/exercise), self-reported race/ethnicity (non-Hispanic White, non-Hispanic Black, Hispanic, Asian/Pacific Islander), prepregnancy body mass index (<25, 25 to < 30, ≥30 kg·m -2 ), parity (0, ≥1), baseline activity (quartiles), and plurality (singleton, twin). RESULTS: Household/caregiving activity made up the largest fraction of reported MET-h·wk -1 at baseline (42%), followed by occupational activity (28%). Median summed activity declined 47%, from 297 to 157 MET-h·wk -1 , between 10 and 40 wk, largely driven by changes in household/caregiving (44% decline), and occupational activity (63% decline). Sports/exercise activity declined 55% but constituted only 5% of reported MET-h·wk -1 at baseline. At baseline, non-Hispanic Black women reported significantly higher activity than non-Hispanic White or Hispanic women, but differences did not persist across pregnancy. Across gestation nulliparous women reported significantly lower activity than parous women. Women with singleton gestations reported significantly more activity than women with twins from weeks 26 to 38. Baseline activity level was strongly associated with later activity levels. CONCLUSIONS: Measuring domains of activity beyond exercise, and collecting longitudinal measurements, is necessary to fully describe activity in diverse populations of pregnant women.


Subject(s)
Fetal Development , National Institute of Child Health and Human Development (U.S.) , Child , Ethnicity , Exercise , Female , Hispanic or Latino , Humans , Pregnancy , United States
7.
F S Rep ; 3(1): 39-46, 2022 Mar.
Article in English | MEDLINE | ID: mdl-35386497

ABSTRACT

Objective: To examine the relationship of preconception hemoglobin A1c, a marker of cumulative exposure to glucose over the preceding 2-3 months, with time to pregnancy, pregnancy loss, and live birth among fecund women without diagnosed diabetes or other medical diseases. Design: A secondary analysis of a prospective cohort of women participating in the Effects of Aspirin in Gestation and Reproduction (EAGeR) trial. Setting: Four US academic medical centers. Patients: A total of 1,194 healthy women aged 18-40 years with a history of one or two pregnancy losses attempting spontaneous conception were observed for up to six cycles while attempting pregnancy and throughout pregnancy if they conceived. Interventions: Not applicable. Main Outcome Measures: Time to pregnancy, human chorionic gonadotropin pregnancy, clinical pregnancy, pregnancy loss, and live birth. Results: Although increasing preconception A1c level was associated with reduced fecundability (fecundability odds ratio [FOR] per unit increase in A1c 0.74; 95% confidence interval [CI] 0.57, 0.96) in unadjusted models and models adjusted for age, race, smoking and treatment arm (FOR 0.79; 95% CI 0.60, 1.04), results were attenuated after further adjustment for body mass index (FOR 0.91; 95% CI 0.68, 1.21). Preconception A1c levels among women without diagnosed diabetes were not associated with live birth or pregnancy loss. Conclusionss: Among healthy women without diagnosed diabetes, we observed no association of A1c with live birth or pregnancy loss. The association between A1c and fecundability was influenced by body mass index, a strong risk factor for both diabetes and infertility. These data support current recommendations that preconception A1c screening should be reserved for patients with risk factors for diabetes. Clinical Trial Registration Number: ClinicalTrials.gov: NCT00467363.

9.
JAMA Netw Open ; 4(11): e2133401, 2021 11 01.
Article in English | MEDLINE | ID: mdl-34748005

ABSTRACT

Importance: Women are recommended to limit caffeine consumption to less than 200 mg per day based on risks to fetal health. Impacts of caffeine on maternal health remain unclear. Objective: To determine whether caffeinated-beverage intake and plasma caffeine and paraxanthine are associated with cardiometabolic complications in pregnancy (ie, gestational diabetes [GDM], preeclampsia, and gestational hypertension [GH]). Design, Setting, and Participants: This cohort study used data from a longitudinal pregnancy cohort study from the National Institute of Child Health and Human Development (NICHD) Fetal Growth Studies-Singletons (2009-2013). This post hoc secondary analysis of 2802 pregnant women without major chronic conditions enrolled at 12 US clinical sites was completed in 2021. The final sample for caffeinated beverage analyses included 2583 women. After excluding women who did not consent to have their biospecimens stored for future research (n = 54), plasma caffeine analyses included 2529 women. Analyses of caffeine consumption and fasting cardiometabolic profiles included 319 women. Exposures: Daily total caffeine intake was estimated at 10 to 13 gestational weeks and 16 to 22 gestational weeks based on self-reported past week intake of caffeinated coffee, tea, soda, and energy drinks. Plasma caffeine and paraxanthine were measured in specimens collected at 10 to 13 weeks. Main Outcomes and Measures: Clinical diagnoses of GDM, preeclampsia, GH, glucose concentrations from GDM screening, and blood pressure were extracted from medical records. Results: Participants had a mean (SD) age of 28.1 (5.5) years and 422 participants (16.3%) were Asian/Pacific Islander women, 741 (28.9%) were Hispanic women, 717 (27.8%) were non-Hispanic Black women, and 703 (27.2%) were non-Hispanic White women. At 10 to 13 weeks, 1073 women (41.5%) reported consuming no caffeinated beverages, 1317 (51.0%) reported consuming 1 mg/d to 100 mg/d, 173 (6.7%) reported consuming 101 mg/d to 200 mg/d, and 20 (0.8%) reported consuming more than 200 mg/d. At 16 to 22 weeks, 599 women (23.6%) reported consuming no caffeinated beverages, 1734 (68.3%) reported consuming 1 mg/d to 100 mg/d, 186 (7.3%) reported consuming 101 mg/d to 200 mg/d, and 20 (0.8%) reported consuming more than 200 mg/d caffeinated beverages. Intake at 16 to 22 weeks was associated with lower GDM risk and lower glucose concentrations (1 mg/d to 100 mg/d vs none: relative risk, 0.53 [95% CI, 0.35 to 0.80]; ß, -2.7 mg/dL [95% CI, -5.4 mg/dL to 0 mg/dL]) and lower C-reactive protein and C-peptide concentrations and favorable lipid profiles. Total plasma caffeine and paraxanthine at 10 to 13 weeks was inversely associated with glucose (quartile 4 vs quartile 1: ß = -3.8 mg/dL [95% CI, -7.0 mg/dL to -0.5 mg/dL]; trend of P = .01). No associations were observed with preeclampsia or GH. Conclusions and Relevance: In this cohort study, second trimester caffeinated beverage intake within current recommendations was associated with lower GDM risk, but not preeclampsia or GH. These findings may be reassuring for women with moderate caffeine intake.


Subject(s)
Beverages/adverse effects , Caffeine/adverse effects , Cardiometabolic Risk Factors , Diabetes, Gestational/etiology , Adult , Cohort Studies , Diabetes, Gestational/prevention & control , Female , Humans , Maternal Nutritional Physiological Phenomena , Pregnancy , Prenatal Care/methods , Risk Assessment , Risk Factors
10.
Am J Clin Nutr ; 114(3): 1229-1237, 2021 09 01.
Article in English | MEDLINE | ID: mdl-34075392

ABSTRACT

BACKGROUND: Adherence to alternate Healthy Eating Index (AHEI), alternate Mediterranean diet (AMED), and Dietary Approaches to Stop Hypertension (DASH) has been linked to lower risks of chronic diseases. However, their associations with common pregnancy complications are unclear. OBJECTIVES: This study investigates the associations of AHEI, AMED, and DASH during periconception and pregnancy with common pregnancy complication risks. METHODS: The study included 1887 pregnant women from the Eunice Kennedy Shriver National Institute of Child Health and Human Development Fetal Growth Studies-Singletons. Women responded to an FFQ at 8-13 gestational weeks, and they performed a 24-h dietary recall at 16-22 and 24-29 wk. Gestational diabetes (GDM), gestational hypertension, preeclampsia, and preterm delivery were ascertained using medical records. RESULTS: Healthier diet indicated by higher AHEI, AMED, and DASH scores was generally related to lower risks of pregnancy complications. Significant inverse associations were observed between AHEI score reported at 16-22 wk and GDM risk [adjusted RR (95% CI), highest (Q4) vs. lowest quartile (Q1): 0.32 (0.16, 0.66), P-trend = 0.002]; DASH score reported at both 8-13 [adjusted RR (95% CI), Q4 vs. Q1: 0.45 (0.17, 1.17), P-trend = 0.04] and 16-22 wk [adjusted RR (95% CI), Q4 vs. Q1: 0.19 (0.05, 0.65), P-trend = 0.01] and gestational hypertension risk; AHEI score reported at 24-29 wk and preeclampsia risk [adjusted RR (95% CI), Q4 vs. Q1: 0.31 (0.11, 0.87), P-trend = 0.03]; AMED score reported at 8-13 wk [adjusted RR (95% CI), Q4 vs. Q1: 0.50 (0.25, 1.01), P-trend = 0.03] and DASH score reported at 24-29 wk [adjusted RR (95% CI), Q4 vs. Q1: 0.50, (0.26, 0.96), P-trend = 0.03] and preterm delivery risk. CONCLUSIONS: Adherence to AHEI, AMED, or DASH during periconception and pregnancy was related to lower risks of GDM, gestational hypertension, preeclampsia, and preterm delivery.This study was registered at ClinicalTrials.gov as NCT00912132.


Subject(s)
Diet, Healthy , Pregnancy Complications , Adult , Female , Humans , Pregnancy , Risk Factors , Young Adult
11.
J Acad Nutr Diet ; 121(12): 2419-2428.e4, 2021 12.
Article in English | MEDLINE | ID: mdl-34023277

ABSTRACT

BACKGROUND: Lifestyle changes are recommended for women diagnosed with gestational diabetes mellitus (GDM), yet there are few data available documenting whether women change their diet and exercise after GDM diagnosis. OBJECTIVE: The aim of this study was to assess whether, and to what extent, pregnant women receiving usual prenatal care change their diet and exercise after a GDM diagnosis. DESIGN: This study was a post-hoc secondary analysis using data from the Eunice Kennedy Shriver National Institute of Child Health and Human Development Fetal Growth Studies-Singletons (2009-2013), a prospective pregnancy cohort study. PARTICIPANTS/SETTING: Pregnant US women without major chronic medical conditions were enrolled from 12 participating hospital centers at 8 to 13 weeks' gestation. Diet analyses were based on 5,194 dietary recalls from 1,371 women. Exercise analyses were based on 6,440 physical activity assessments from 1,875 women. GDM was ascertained from medical records according to Carpenter and Coustan criteria. Women completed 24-hour dietary recalls and exercise assessments at weeks 16 to 22, 24 to 29, 30 to 33, 34 to 37, and 38 to 41 (exercise only). MAIN OUTCOME MEASURES: The main outcome was the diet and exercise change from before to after GDM diagnosis or screening. STATISTICAL ANALYSES: Diet and exercise changes with 95% CIs from before to after GDM diagnosis or screening for women with and without GDM were estimated using weighted multivariable linear mixed models. RESULTS: Women with GDM (n = 72) significantly reduced their total energy intake (-184 kcal/d; 95% CI -358 to -10 kcal/d) and carbohydrate intake (-47.6 g/d; 95% CI -71.4 to -23.7 g/d) from before to after GDM diagnosis; these changes were unique to women with GDM and not observed among women without GDM (n = 1,299). Women with GDM decreased intakes of juice (-0.4 cups/d; 95% CI -0.7 to -0.2 cups/d) and added sugar (-3.2 teaspoons/d; 95% CI -5.5 to -0.5 teaspoons/d) and increased cheese (0.3 cups/d; 95% CI 0.1 to 0.6 cups/d) and artificially sweetened beverages (0.2 cups/d; 95% CI 0.0 to 0.3 cups/d). Women with GDM (n = 84) did not change their exercise duration after diagnosis; women without GDM (n = 1,791) significantly decreased moderate (-19.5 min/wk; 95% CI -24.7 to -14.3 min/wk) and vigorous exercise (-8.8 min/wk; 05% CI -10.6 to -6.9 min/wk) after GDM screening. CONCLUSIONS: Women with GDM made modest dietary improvements and maintained their prediagnosis exercise routine, yet opportunities remain to further improve dietary intake and exercise after a diagnosis of GDM.


Subject(s)
Diabetes, Gestational/therapy , Diet/statistics & numerical data , Exercise/statistics & numerical data , Pregnant Women/psychology , Prenatal Care/statistics & numerical data , Adult , Diabetes, Gestational/psychology , Diet/psychology , Diet Surveys , Exercise/psychology , Feeding Behavior/psychology , Female , Health Behavior , Humans , Longitudinal Studies , Pregnancy , Prenatal Care/psychology , Prospective Studies
12.
Am J Clin Nutr ; 114(1): 358-367, 2021 07 01.
Article in English | MEDLINE | ID: mdl-33742192

ABSTRACT

BACKGROUND: Research has established that maternal diet influences fetal growth and preterm birth, but most studies only evaluate single nutrients. Relations between dietary patterns and neonatal outcomes are understudied. OBJECTIVE: We evaluated associations of neonatal outcomes with maternal diet patterns derived using 3 a priori diet scores [Alternative Healthy Eating Index-2010 (AHEI-2010), alternate Mediterranean diet score (aMed), and Dietary Approaches to Stop Hypertension (DASH)] as well as principal components analysis (PCA). METHODS: We studied 1948 women from the Eunice Kennedy Shriver National Institute of Child Health and Human Development Fetal Growth Studies-Singletons, a racially diverse multisite cohort of pregnant women in the USA (2009-2013). Diet in the past 3 mo was assessed using a self-administered FFQ at 8-13 weeks of gestation. Birthweight was abstracted from medical records and neonatal anthropometry measured postdelivery using standardized protocols. RESULTS: All 3 a priori scores were significantly associated with increased birthweight, and aMed was also associated with reduced odds of low birthweight [quartile 4 versus 1: ORadj = 0.42; 95% CI: 0.18, 1.00 (P-trend = 0.02)]. Greater aMed and DASH scores were significantly associated with increased length [aMed: quartile 4 versus 1: 0.54 cm; 95% CI: 0.10, 0.99 (P-trend = 0.006); DASH: quartile 4 versus 1: 0.62 cm; 95% CI: 0.25, 0.99 (P-trend = 0.006)] and upper arm length. Neither diet pattern derived from PCA was significantly associated with birthweight. CONCLUSION: Among mostly low-risk pregnant women, pre- and early pregnancy healthful diet quality indices, particularly the aMed score, were associated with larger neonatal size across the entire birthweight distribution. In the absence of generally accepted pregnancy-specific diet quality scores, these results provide evidence for an association between maternal diet patterns and neonatal outcomes.


Subject(s)
Birth Weight , Diet, Healthy , Feeding Behavior , Premature Birth/prevention & control , Prenatal Nutritional Physiological Phenomena , Adult , Female , Humans , Infant, Newborn , Pregnancy , Pregnancy Outcome
13.
J Clin Endocrinol Metab ; 106(7): e2600-e2612, 2021 06 16.
Article in English | MEDLINE | ID: mdl-33735390

ABSTRACT

CONTEXT: Diets high in plant-based protein have gained popularity due to increasing health concerns regarding consumption of animal products. Though links between intakes of certain protein-rich foods and reproductive disorders have been suggested, the relationship of overall animal and vegetable proteins with reproductive hormones among reproductive-aged women is unknown. OBJECTIVE: To evaluate the associations between the intake of dietary protein with reproductive hormones and sporadic anovulation among reproductive-aged women. DESIGN: A prospective cohort study, 2005-2007. SETTING: University at Buffalo, western New York, United States. PARTICIPANTS: A total of 259 premenopausal women (18-44 years) without dietary restrictions. MAIN OUTCOME MEASURE(S): Serum reproductive hormones were determined up to 8 times per cycle for 2 cycles. Protein intake was assessed the day prior to hormone assessment at 4 visits/cycle using 24-hour recalls. RESULTS: Overall, 84% of participants met the recommended dietary allowance for total protein set for reproductive-aged women. Neither total nor animal protein intake were associated with reproductive hormones or anovulation. However, vegetable protein intake in the lowest tertile was associated with lower luteal phase progesterone (-18.0%, 95% confidence interval [CI] -30.2, -3.6), higher follicle-stimulating hormone (3.8%, 95% CI 0.2, 7.6), and a higher risk of anovulation (risk ratio [RR] 2.53, 95% CI 1.21, 5.26), compared with the middle tertile. Nuts and seeds were the only protein-rich foods associated with an elevated risk of anovulation (RR 2.12, 95% CI 1.17, 3.85). CONCLUSIONS: Findings suggest that among women who meet the recommended dietary allowance for total protein, low intake of vegetable, but not animal, protein may disturb normal ovulatory function.


Subject(s)
Anovulation/etiology , Diet/adverse effects , Eating/physiology , Ovulation/physiology , Plant Proteins, Dietary/analysis , Adolescent , Adult , Animal Proteins, Dietary/analysis , Diet Surveys , Female , Follicle Stimulating Hormone/blood , Healthy Volunteers , Humans , Pregnancy , Premenopause/blood , Prospective Studies , Recommended Dietary Allowances , Reproductive Health , Young Adult
14.
Curr Dev Nutr ; 5(1): nzaa182, 2021 Jan.
Article in English | MEDLINE | ID: mdl-33553996

ABSTRACT

BACKGROUND: Accumulating evidence indicates that maternal diets are important for optimizing maternal and offspring health. Existing research lacks comprehensive profiles of maternal diets throughout pregnancy, especially in a racially/ethnically diverse obstetrical population. OBJECTIVE: The aim was to characterize diets in a longitudinal US pregnancy cohort by trimester, race/ethnicity, and prepregnancy BMI. METHODS: Data were obtained from pregnant women in the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Fetal Growth Studies-Singleton cohort (2009-2013). A food-frequency questionnaire (FFQ) at 8-13 wk of gestation assessed periconception and first-trimester diet (n = 1615). Automated, self-administered, 24-h dietary recalls targeted at 16-22, 24-29, 30-33, and 34-37 wk of gestation assessed second- and third-trimester diets (n = 1817 women/6791 recalls). The Healthy Eating Index-2010 (HEI-2010) assessed diet quality (i.e., adherence to US Dietary Guidelines). Variations in weighted energy-adjusted means for foods and nutrients were examined by trimester, self-identified race/ethnicity, and self-reported prepregnancy BMI. RESULTS: Mean (95% CI) HEI-2010 was 65.9 (64.9, 67.0) during periconception to the first trimester assessed with an FFQ and 51.6 (50.8, 52.4) and 51.5 (50.7, 52.3) during the second trimester and third trimester, respectively, assessed using 24-h recalls. No significant differences were observed between the second and third trimester in macronutrients, micronutrients, foods, or HEI-2010 components (P ≥ 0.05). Periconception to first-trimester HEI-2010 was highest among Asian/Pacific Islander [67.2 (65.9, 68.6)] and lowest among non-Hispanic Black [58.7 (57.5, 60.0)] women and highest among women with normal weight [67.2 (66.1, 68.4)] and lowest among women with obesity [63.5 (62.1, 64.9)]. Similar rankings were observed in the second/third trimesters. CONCLUSIONS: Most pregnant women in this cohort reported dietary intakes that, on average, did not meet US Dietary Guidelines for nonpregnant individuals. Also, diet differed across race/ethnic groups and by prepregnancy BMI, with the lowest overall dietary quality in all trimesters among non-Hispanic Black women and women with obesity. No meaningful changes in dietary intake were observed between the second and third trimesters.

15.
Int J Epidemiol ; 50(1): 165-178, 2021 03 03.
Article in English | MEDLINE | ID: mdl-33232446

ABSTRACT

BACKGROUND: Vegetarian diets are becoming increasingly popular in the USA. Limited research has examined the health consequences of vegetarian diets during pregnancy. We comprehensively examined associations of vegetarianism during pregnancy with maternal and neonatal outcomes. METHODS: We used data from the Eunice Kennedy Shriver National Institute of Child Health and Human Development's Fetal Growth Studies-Singletons, a prospective multi-site cohort of 1948 low-risk pregnant women of four races/ethnicities (White, Black, Hispanic, Asian/Pacific Islander) in the USA (2009-2013). Vegetarianism was self-reported and also defined based on dietary patterns measured using a self-administered first-trimester food-frequency questionnaire (full [lacto-ovo and vegan], pesco-, semi- and non-vegetarians). Neonatal outcomes included birthweight and neonatal anthropometric measures, small for gestational age, small for gestational age with neonatal morbidity and preterm delivery. Maternal outcomes included gestational weight gain, gestational diabetes, hypertensive disorders of pregnancy and gestational anaemia. RESULTS: Ninety-nine (6.2%) women self-reported being vegetarian. The diet-based definition identified 32 (2.0%) full vegetarians, 7 (0.6%) pesco-vegetarians and 301 (17.6%) semi-vegetarians. Neonates of diet-based full vegetarians had higher odds of being small for gestational age [adjusted odds ratio (ORadj) = 2.51, 95% confidence interval: 1.01, 6.21], but not of being small for gestational age with a postnatal morbidity. Full vegetarians had marginally increased the odds of inadequate second-trimester gestational weight gain (ORadj = 2.24, 95% confidence interval: 0.95, 5.27). CONCLUSION: Vegetarian diets during pregnancy were associated with constitutionally smaller neonatal size, potentially via the mothers' reduced gestational weight gain. Notably, vegetarianism was not associated with small-for-gestational-age-related morbidities or other adverse maternal outcomes.


Subject(s)
Diet, Vegetarian , Diet , Birth Weight , Child , Female , Humans , Infant, Newborn , Infant, Small for Gestational Age , Pregnancy , Prospective Studies
16.
Diabetes Res Clin Pract ; 103(2): 223-30, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24321468

ABSTRACT

The North America and Caribbean (NAC) Region faces a high burden of diabetes. In 2013, the number of children (aged 0-14 years) with type 1 diabetes was 108,600, with 16.7 new cases diagnosed per 100,000 children. Furthermore, there were 36,755,500 individuals with diabetes (mostly type 2 diabetes) in adults (20-79 years), and an additional 44,277,700 individuals had impaired glucose tolerance. The age-adjusted prevalence of diabetes in adults was 9.6%; the second highest among the seven Regions of the International Diabetes Federation. This estimate is expected to grow to 9.9% by 2035. There was some heterogeneity in the estimates within the Region with the age-adjusted prevalence for the USA estimated at 9.2%, 7.9% for Canada, 12.6% for Mexico, and 9.6% for the Caribbean islands. Mortality due to diabetes in the NAC Region is not limited to older age groups, with 37.6% of deaths occurring in people under the age of 60. The economic impact was also enormous, with healthcare expenditure due to diabetes estimated at 263.2 billion USD for 2013 - the highest of all IDF Regions. Diabetes threatens the public health and economies of countries in the NAC Region, and efforts in prevention and management must be intensified in order to surmount this growing problem.


Subject(s)
Diabetes Mellitus, Type 1/epidemiology , Diabetes Mellitus, Type 2/epidemiology , Adolescent , Adult , Aged , Caribbean Region/epidemiology , Child , Child, Preschool , Disease Management , Female , Humans , Infant , Infant, Newborn , Male , Middle Aged , North America/epidemiology , Prevalence , Risk Factors , Young Adult
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