Trial reportJournal of health, population, and nutrition2016
A home calendar and recall method of last menstrual period for estimating gestational age in rural Bangladesh: a validation study.
Trial report in Journal of health, population, and nutrition, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00860470 (Antenatal Multiple Micronutrient Supplementation to Improve Infant Survival and Health in Bangladesh), which is not on this map. Cited by 24 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Antenatal Multiple Micronutrient Supplementation to Improve Infant Survival and Health in Bangladesh
Who cites it
24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.
- Antenatal multiple micronutrient supplements versus iron-folic acid supplements and birth outcomes: Analysis by gestational age assessment method.Maternal & child nutrition · 2023Pooled it
- Influence of different methods for calculating gestational age at birth on prematurity and small for gestational age proportions: a systematic review with meta-analysis.BMC pregnancy and childbirth · 2023Pooled it
- Associations between Nugent-bacterial vaginosis and preterm birth and other adverse pregnancy outcomes in rural northwestern Bangladesh.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026Trial
- Effect of population-based antenatal screening and treatment of genitourinary tract infections on birth outcomes in Sylhet, Bangladesh (MIST): a cluster-randomised clinical trial.The Lancet. Global health · 2019Trial
- Impact of Timing of Influenza Vaccination in Pregnancy on Transplacental Antibody Transfer, Influenza Incidence, and Birth Outcomes: A Randomized Trial in Rural Nepal.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018Trial
- Trial
- Article
- Quality of vital event data for infant mortality estimation in prospective, population-based studies: an analysis of secondary data from Asia, Africa, and Latin America.Population health metrics · 2023Article
- How Can Nutrition Research Better Reflect the Relationship Between Wasting and Stunting in Children? Learnings from the Wasting and Stunting Project.The Journal of nutrition · 2023Article
- The risk of miscarriage is associated with ambient temperature: evidence from coastal Bangladesh.Frontiers in public health · 2023Article
- Observational
- Observational
- Simplified models to assess newborn gestational age in low-middle income countries: findings from a multicountry, prospective cohort study.BMJ global health · 2021Article
- Stillbirth outcome capture and classification in population-based surveys: EN-INDEPTH study.Population health metrics · 2021Article
- Gestational age data completeness, quality and validity in population-based surveys: EN-INDEPTH study.Population health metrics · 2021Article
- Article
- Primary and Repeated Respiratory Viral Infections Among Infants in Rural Nepal.Journal of the Pediatric Infectious Diseases Society · 2020Article
- Agreement between antenatal gestational age by ultrasound and clinical records at birth: A prospective cohort in the Brazilian Amazon.PloS one · 2020Article
- Predictors of neonatal mortality: development and validation of prognostic models using prospective data from rural Bangladesh.BMJ global health · 2020Article
- Maternal and severe anaemia in delivering women is associated with risk of preterm and low birth weight: A cross sectional study from Jharkhand, India.One health (Amsterdam, Netherlands) · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
Abstract
backgroundThe best method of gestational age assessment is by ultrasound in the first trimester; however, this method is impractical in large field trials in rural areas. Our objective was to assess the validity of gestational age estimated from prospectively collected date of last menstrual period (LMP) using crown-rump length (CRL) measured in early pregnancy by ultrasound.
methodsAs part of a large, cluster-randomized, controlled trial in rural Bangladesh, we collected dates of LMP by recall and as marked on a calendar every 5 weeks in women likely to become pregnant. Among those with a urine-test confirmed pregnancy, a subset with gestational age of <15 weeks (n = 353) were enrolled for ultrasound follow-up to measure CRL. We compared interview-assessed LMP with CRL gestational age estimates and classification of preterm, term, and post-term births.
resultsLMP-based gestational age was higher than CRL by a mean (SD) of 2.8 (10.7) days; differences varied by maternal education and preterm birth (P < 0.05). Lin's concordance correlation coefficient was good at ultrasound [0.63 (95 % CI 0.56, 0.69)] and at birth [0.77 (95 % CI 0.73, 0.81)]. Validity of classifying preterm birth was high but post-term was lower, with specificity of 96 and 89 % and sensitivity of 86 and 67 %, respectively. Results were similar by parity.
conclusionsProspectively collected LMP provided a valid estimate of gestational age and preterm birth in a rural, low-income setting and may be a suitable alternative to ultrasound in programmatic settings and large field trials.
trial registrationClinicalTrials.gov NCT00860470.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.