Evidence map›Paper›PMID 10567135›Full record

ArticleBMJ (Clinical research ed.)1999

Association between birth weight and adult blood pressure in twins: historical cohort study.

N R Poulter, C L Chang, A J MacGregor, H Snieder, T D Spector

Open access · bronzeAbstract readTwin Study
In one paragraph

Article in BMJ (Clinical research ed.), 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
27.6field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 155 citations in OpenAlex.

  1. Twin gestation and the burden of adult cardio-renal disease.Pediatric nephrology (Berlin, Germany) · 2020
    Review
  2. Article
  3. Article
  4. Review
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  6. Article
  7. Vascular nitric oxide and superoxide anion contribute to sex-specific programmed cardiovascular physiology in mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2009
    Article
  8. Review
  9. Article
  10. Article
  11. Dermatoglyphic patterns, very low birth weight, and blood pressure in adolescence.Archives of disease in childhood. Fetal and neonatal edition · 2001
    Article
  12. Review
  13. Article
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

N R PoulterCardiovascular Studies Unit, Department of Clinical Pharmacology, Imperial College School of Medicine, St Mary's Campus, London W2 1PG. n.pulter@ic.ac.uk
C L Chang
A J MacGregor
H Snieder
T D Spector
St Thomas' Hospital · GBImperial College London · GBSt Mary's Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

objectivesTo evaluate the associations in twins between within pair differences in birth weight and subsequent blood pressures as adults thereby removing the impact of potential parental confounding variables.

designHistorical cohort study.

settingSt Thomas's UK adult twin register, June 1992 to September 1995.

participants492 pairs of female twins (mean age 54 years).

main outcome measuresMean within pair differences in adult blood pressure in each of four strata of within pair differences in birth weight (0, 1-500 g, 501-1000 g, >1000 g). Differences in blood pressure were analysed before and after adjustment for potential confounders between adult twins, after exclusion of those twin pairs including at least one twin taking antihypertensive drugs, and by zygosity.

resultsReported mean birth weights of heavier and lighter twins were 2.51 (SD 0.61) v 2.12 (0.59) kg respectively. A graded inverse relation between strata of within pair differences in birth weight and differences in adult blood pressure was apparent, with an adjusted blood pressure range of 8.7/5.1 mm Hg across the four strata (test for trend: systolic, P=0.05; diastolic, P=0.09). After excluding those women taking antihypertensive drugs the significance of the association was similar (systolic, P=0.04; diastolic, P=0.10). When differences in blood pressure were stratified for zygosity similar but non-significant trends were apparent.

conclusionIt would seem that birth weight is inversely associated with adult blood pressure and that this association is independent of parental confounding variables probably including, in view of the findings in monozygotic twins, genetic factors. The observed blood pressure differences are likely to result from retarded intrauterine growth due to placental dysfunction rather than inadequate maternal nutrition.

Indexed as

AdultAlcohol DrinkingBirth WeightBlood PressureCohort StudiesConfounding Factors, EpidemiologicFemaleHumansInfant, NewbornLondonMaleSmokingTwins, DizygoticTwins, Monozygotic

Identifiers

PMID10567135
PMCPMC28278
OpenAlexW2096923241

What OpenQuestion holds

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Registered trials

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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.