Evidence map›Paper›PMID 33880179›Full record

ArticleJournal of global health2021

Incidence, risk factors, and viral etiology of community-acquired acute lower respiratory tract infection among older adults in rural north India.

Rakesh Kumar, Lalit Dar, Ritvik Amarchand, Siddhartha Saha, Kathryn E Lafond, Debjani R Purakayastha, Ramesh Kumar, Avinash Choudekar, Giridara Gopal, Shivram Dhakad and 8 more

Open access · goldAbstract read
In one paragraph

Article in Journal of global health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

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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

18 authors at 3 institutions in 2 countries.

Rakesh KumarAll India Institute of Medical Sciences, New Delhi.
Lalit DarAll India Institute of Medical Sciences, New Delhi.
Ritvik AmarchandAll India Institute of Medical Sciences, New Delhi.
Siddhartha SahaInfluenza Division, Centers for Disease Control and Prevention- India Country Office, New Delhi, India.
Kathryn E LafondCenters for Disease Control and Prevention, Atlanta, Georgia, USA.
Debjani R PurakayasthaAll India Institute of Medical Sciences, New Delhi.
Ramesh KumarAll India Institute of Medical Sciences, New Delhi.
Avinash ChoudekarAll India Institute of Medical Sciences, New Delhi.
Giridara GopalAll India Institute of Medical Sciences, New Delhi.
Shivram DhakadAll India Institute of Medical Sciences, New Delhi.
Venkatesh Vinayak NarayanInfluenza Division, Centers for Disease Control and Prevention- India Country Office, New Delhi, India.
Abhishek WahiAll India Institute of Medical Sciences, New Delhi.
Reshmi ChhokarAll India Institute of Medical Sciences, New Delhi.
Stephen LindstromCenters for Disease Control and Prevention, Atlanta, Georgia, USA.
Brett WhitakerCenters for Disease Control and Prevention, Atlanta, Georgia, USA.
Aashish ChoudharyAll India Institute of Medical Sciences, New Delhi.
A B DeyAll India Institute of Medical Sciences, New Delhi.
Anand KrishnanAll India Institute of Medical Sciences, New Delhi.
All India Institute of Medical Sciences · INCenters for Disease Control and Prevention · USNational Center for Disease Control · IN

Funding

NCIRD CDC HHS U01 IP000492
6 · The paper itself

Abstract

backgroundThere are limited data on incidence, risk factors and etiology of acute lower respiratory tract infection (LRTI) among older adults in low- and middle-income countries.

methodsWe established a cohort of community dwelling older adults ≥60 years and conducted weekly follow-up for acute respiratory infections (ARI) during 2015-2017. Nurses assessed ARI cases for LRTI, collecting combined nasal/throat swabs from all LRTI cases and an equal number of age- and sex-matched asymptomatic neighbourhood controls. Swabs were tested for influenza viruses, respiratory syncytial virus (RSV), human metapneumovirus (hMPV), and parainfluenza viruses (PIV) using polymerase chain reaction. LRTI and virus-specific LRTI incidence was calculated per 1000 person-years. We estimated adjusted incidence rate ratios (IRR) for risk factors using Poisson regression and calculated etiologic fractions (EF) using adjusted odds ratios for detection of viral pathogens in LRTI cases vs controls.

resultsWe followed 1403 older adults for 2441 person-years. LRTI and LRTI-associated hospitalization incidences were 248.3 (95% confidence interval (CI) = 229.3-268.8) and 12.7 (95% CI = 8.9-18.1) per 1000 person-years. Persons with pre-existing chronic bronchitis as compared to those without (incidence rate ratio (IRR) = 4.7, 95% CI = 3.9-5.6); aged 65-74 years (IRR = 1.6, 95% CI = 1.3-2.0) and ≥75 years (IRR = 1.8, 95% CI = 1.4-2.4) as compared to 60-64 years; and persons in poorest wealth quintile (IRR = 1.4, 95% CI = 1.1

conclusionIn this rural cohort of older adults, the incidence of LRTI was substantial. Chronic bronchitis was an important risk factor; influenza virus and RSV were major viral pathogens.

Indexed as

Respiratory Syncytial Virus, HumanRespiratory Syncytial Virus InfectionsRespiratory Tract InfectionsAgedHumansIncidenceIndiaInfantRisk Factors

Identifiers

PMID33880179
PMCPMC8035979
OpenAlexW3154003367

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.