Reliability and validity of last menstrual period for gestational age estimation in a low‐to‐middle‐income setting

Macaulay, Shelley; Buchmann, Eckhart; Norris, Shane A.

doi:10.1111/jog.13801

Cited by 37 publications

(40 citation statements)

References 32 publications

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“…One of the rare studies focusing on pregnancy outcomes in eastern DRC pointed to a two-fold increase in the rate of preterm births in a hospital following the eruption of the 1997 war in the now Ituri province [35], consistent with the literature from other conflict-plagued contexts [36]. Inaccurate estimation of gestational age, mostly based on clinical evaluations and last menstrual periods is possible [37], though the latter was suggested to be a reliable alternative for the assessment of gestational age in low-income settings where early pregnancy ultrasound is not readily accessible [38].…”

Section: Plos Onesupporting

confidence: 71%

Applying the Robson classification to routine facility data to understand the Caesarean section practice in conflict settings of South Kivu, eastern DR Congo

et al. 2020

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Introduction Sub-Saharan Africa has low Caesarean (CS) levels, despite a global increase in CS use. In conflict settings, the pattern of CS use is unclear because of scanty data. We aimed to examine the opportunity of using routine facility data to describe the CS use in conflict settings. Methods We conducted a facility-based cross-sectional study in 8 health zones (HZ) of South Kivu province in eastern DR Congo. We reviewed patient hospital records, maternity registers and operative protocol books, from January to December 2018. Data on direct conflict fatalities were obtained from the Uppsala Conflict Data Program. Based on conflict intensity and chronicity (expressed as a 6-year cumulative conflict death rate), HZ were classified as unstable (higher conflict death rate), intermediate and stable (lower conflict death rate). To describe the Caesarean section practice, we used the Robson classification system. Based on parity, history of previous CS, onset of labour, foetal lie and presentation, number of neonates and gestational age, the Robson classification categorises deliveries into 10 mutually

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Section: Plos Onesupporting

confidence: 71%

Applying the Robson classification to routine facility data to understand the Caesarean section practice in conflict settings of South Kivu, eastern DR Congo

et al. 2020

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“…Gestational age at each visit was calculated using the gestational age determined by the dating scan. 22 Abdominal circumference, biparietal diameter, head circumference, and femur length were recorded at each follow-up scan. This methodology was performed as per the INTERGROWTH-21 st study international standards for measuring fetal growth.…”

Section: Data Collectionmentioning

confidence: 99%

Understanding how maternal social and biological factors are related to fetal growth in an urban South African cohort

Prioreschi

Wrottesley

Said‐Mohamed

et al. 2020

J Dev Orig Health Dis

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The aim of this study was to identify social and biological drivers of fetal growth by examining associations with household, preconception, and pregnancy factors in a cohort from Soweto, South Africa. Complete data and ultrasound scans were collected on 519 women between 2013 and 2016 at 6 time points during pregnancy (<14, 14–18, 19–23, 24–28, 29–33 weeks, and 34–38 weeks). Household-level factors, preconception health, baseline body mass index (BMI), and demographic data were collected at the first visit. During pregnancy, gestational weight gain (GWG; kg/week) was calculated. At 24–28 weeks of gestation, oral glucose tolerance test was used to determine gestational diabetes mellitus (GDM) status, and hypertension status was characterised. Longitudinal growth in head circumference, abdominal circumference, biparietal diameter, and femur length were modelled using the Superimposition by Translation and Rotation, a shape-invariant model which produces growth curves against gestational age. A priori identified exposure variables were then included in a series of sex-stratified hierarchical regression models for each fetal growth outcome. No household-level factors were associated with fetal growth. Maternal BMI at baseline was positively associated with all outcome parameters in males and females. Both GWG (in males and females) and GDM (in males) were significant positive predictors of abdominal growth. Males showed more responsiveness to abdominal growth, while females were more responsive to linear growth. Thus, fetal growth was largely predicted by maternal biological factors, and sexual dimorphism in the responsiveness of fetal biometry to biological exposures was evident.

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“…The retrieval of gestational age was a crucial aspect of the search strategy; however, few studies documented the method used. There are large differences in the accuracy of different techniques ( 123 ).…”

Section: Discussionmentioning

confidence: 99%

Hepcidin, Serum Iron, and Transferrin Saturation in Full-Term and Premature Infants during the First Month of Life: A State-of-the-Art Review of Existing Evidence in Humans

Cross

Prentice

Cerami

2020

Current Developments in Nutrition

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Neonates regulate iron at birth and in early postnatal life. We reviewed literature from PubMed and Ovid Medline containing data on umbilical cord and venous blood concentrations of hepcidin, iron and transferrin saturation (TSAT) in human neonates from 0–1 month of age. Data from 59 studies were used to create reference ranges for hepcidin, iron and TSAT for full-term neonates over the first month of life. In full-term neonates, venous hepcidin increases 2–3-fold over the first month of life (to reach 61.1 ng/mL; CI: 20.1–102.0 ng/mL) compared to umbilical cord blood (29.7 ng/mL; CI: 21.1–38.3 ng/mL). Cord blood has high levels of serum iron (28.5 μmol/L; CI: 26.0–31.1 μmol/L) and TSAT (51.7%; CI: 46.5–56.9%). Following a short-lived immediate postnatal hypoferremia, iron and TSAT rebounded to approximately half the levels in the cord by the end of the first month. There was insufficient data to formulate reference ranges for preterm neonates.

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Reliability and validity of last menstrual period for gestational age estimation in a low‐to‐middle‐income setting

Cited by 37 publications

References 32 publications

Applying the Robson classification to routine facility data to understand the Caesarean section practice in conflict settings of South Kivu, eastern DR Congo

Applying the Robson classification to routine facility data to understand the Caesarean section practice in conflict settings of South Kivu, eastern DR Congo

Understanding how maternal social and biological factors are related to fetal growth in an urban South African cohort

Hepcidin, Serum Iron, and Transferrin Saturation in Full-Term and Premature Infants during the First Month of Life: A State-of-the-Art Review of Existing Evidence in Humans

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