Evidence map›Paper›PMID 35382762›Full record

ArticleBMC infectious diseases2022

Association between sputum conversion and in-hospital mortality in elderly patients with pulmonary tuberculosis: a retrospective study.

Yuta Nakamura, Mari Yamasue, Kosaku Komiya, Shuichi Takikawa, Kazufumi Hiramatsu, Jun-Ichi Kadota

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 46% 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

1 citing paper in PubMed, 3 citations in OpenAlex.

  1. Article
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 at 3 institutions in 1 country.

Yuta Nakamura *Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, 4548, Tsurumi, Beppu, Oita, 874-0840, Japan.
Mari Yamasue *Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, 4548, Tsurumi, Beppu, Oita, 874-0840, Japan.
Kosaku Komiya *Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, 4548, Tsurumi, Beppu, Oita, 874-0840, Japan. komiyakh1@oita-u.ac.jp.
Shuichi TakikawaInternal Medicine, National Hospital Organization Nishi-Beppu Hospital, 4548, Tsurumi, Beppu, Oita, 874-0840, Japan.
Kazufumi HiramatsuRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita, 879-5593, Japan.
Jun-Ichi KadotaRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita, 879-5593, Japan.
Beppu Medical Center · JPNational Hospital Organization · JPOita University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-conversion of sputum culture or smear within 2 months after the start of treatment is a known poor prognostic factor of pulmonary tuberculosis. In elderly patients, sputum conversion may be delayed because of the age-related decline in immune competence. This study aimed to assess how a long interval to sputum conversion predicts in-hospital mortality in elderly patients with pulmonary tuberculosis.

methodsConsecutive elderly patients (age > 65 years) who were admitted to our institution for bacteriologically confirmed pulmonary tuberculosis were included. The association between sputum conversion within 30, 60, 90, or 120 days from the start of treatment and in-hospital mortality were analyzed by Cox proportional-hazards regression after adjustment for other potential variables.

resultsThis study included 262 patients, and 74 patients (28%) died during hospitalization. Multivariate analyses showed that sputum non-conversion within 90 days (adjusted hazard ratio 0.424, 95% CI 0.252-0.712, p = 0.001) or 120 days (0.333, 0.195-0.570, p < 0.001) was independently associated with in-hospital mortality, whereas that within 60 days was not (p = 0.890).

conclusionsIn elderly patients with tuberculosis, 2 months may be insufficient when evaluating sputum conversion as a prognostic factor. Sputum non-conversion within 90 days or longer may predict in-hospital mortality more accurately.

Indexed as

Mycobacterium tuberculosisTuberculosis, PulmonaryAgedAntitubercular AgentsHospital MortalityHumansRetrospective StudiesSputumAntitubercular AgentsConversionElderlyMortalityTuberculosis

Identifiers

PMID35382762
PMCPMC8985268
OpenAlexW4223481363

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LicenceCC BY
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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.