Evidence map›Paper›PMID 39885467›Full record

Observational studyBMC pulmonary medicine2025

Longitudinal association between hemoglobin and lung function with insights into the incidence of airflow obstruction: an observational study.

Jihoon Kim, Yun Tae Kim, Ah Young Leem, Ji Ye Jung, Young Sam Kim, Youngmok Park

Abstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in BMC pulmonary medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Jihoon KimDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Yun Tae KimDivision of Biostatistics, Kangbuk Samsung Hospital, Seoul, Republic of Korea.
Ah Young LeemDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Ji Ye JungDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Young Sam KimDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Youngmok ParkDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. 0mokfv@yuhs.ac.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsEvidence regarding the long-term association between hemoglobin (Hb) levels and lung function in individuals from the general population is scarce. This study aimed to determine the longitudinal association between Hb levels and lung function in a community-based population cohort in South Korea.

methodsWe used linear mixed regression analysis to evaluate the longitudinal associations between Hb levels and lung function parameters, including forced vital capacity (FVC), forced expiratory volume in 1 s (FEV

resultsOver an 8-year biennial follow-up of 4,468 individuals (median age, 53.9 years; men, 49.0%), we observed that in men, Hb levels were positively associated with lung function (estimated values of FVC: 16.7 mL, FEV

conclusionsA decreased Hb level was associated with reduced lung function and an increased incidence of AO in men.

Indexed as

HemoglobinsLungPulmonary Disease, Chronic ObstructiveAdultAgedFemaleForced Expiratory VolumeHumansIncidenceLinear ModelsLongitudinal StudiesMaleMiddle AgedRepublic of KoreaRespiratory Function TestsSex FactorsHemoglobinsAirflow obstructionHemoglobinSpirometry

Identifiers

PMID39885467
PMCPMC11783840

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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.