Evidence map›Paper›PMID 29202810›Full record

ArticleBMC public health2017

Trajectories of body mass index among Canadian seniors and associated mortality risk.

Meng Wang, Yanqing Yi, Barbara Roebothan, Jennifer Colbourne, Victor Maddalena, Guang Sun, Peizhong Peter Wang

Abstract read
In one paragraph

Article in BMC public health, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  18. Effects of Social Development Intervention in Childhood on Adult Life at Ages 30 to 39.Prevention science : the official journal of the Society for Prevention Research · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Meng WangDivision of Community Health & Humanities, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada. mw7046@mun.ca.ORCID http://orcid.org/0000-0002-2553-2623
Yanqing YiDivision of Community Health & Humanities, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.
Barbara RoebothanDivision of Community Health & Humanities, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.
Jennifer ColbourneDivision of Community Health & Humanities, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.
Victor MaddalenaDivision of Community Health & Humanities, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.
Guang SunDiscipline of Medicine, Faculty of Medicine, Memorial University, St. John's, NF, Canada.
Peizhong Peter WangDivision of Community Health & Humanities, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aims to characterize the heterogeneity in BMI trajectories and evaluate how different BMI trajectories predict mortality risk in Canadian seniors.

methodsData came from the Canadian National Population Health Survey (NPHS, 1994-2011) and 1480 individuals aged 65-79 years with at least four BMI records were included in this study. Group-based trajectory model was used to identify distinct subgroups of longitudinal trajectories of BMI measured over 19 years for men and women. Cox proportional hazards models were used to examine the association between BMI trajectories and mortality risks.

resultsDistinct trajectory patterns were found for men and women: 'Normal Weight-Down'(N-D), 'Overweight-Normal weight' (OV-N), 'Obese I-Down' (OB I-D), and 'Obese II- Down' (OB II-D) for women; and 'Normal Weight-Down' (N-D), 'Overweight-Normal weight' (OV-N), 'Overweight-Stable' (OV-S), and 'Obese-Stable' (OB-S) for men. Comparing with OV-N, men in the OV-S group had the lowest mortality risk followed by the N-D (HR = 1.66) and OB-S (HR = 1.98) groups, after adjusting for covariates. Compared with OV-N, women in the OB II-D group with three or more chronic health conditions had higher mortality risk (HR = 1.61); however, women in OB II-D had lower risk (HR = 0.56) if they had less than three conditions.

conclusionThe course of BMI over time in Canadian seniors appears to follow one of four different patterns depending on gender. The findings suggest that men who were overweight at age 65 and lost weight over time had the lowest mortality risk. Interestingly, obese women with decreasing BMI have different mortality risks, depending on their chronic health conditions. The findings provide new insights concerning the associations between BMI and mortality risk.

Indexed as

Body Mass IndexAgedCanadaFemaleHealth SurveysHumansMaleMortalityObesityOverweightProportional Hazards ModelsRiskSex DistributionWeight LossBody mass trajectoriesLatent class growth modellingMortalitySeniors

Identifiers

PMID29202810
PMCPMC5715616

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.