Evidence map›Paper›PMID 21501483›Full record

ArticleBMC infectious diseases2011

The health status of Q-fever patients after long-term follow-up.

Gabriëlla Morroy, Jeannette B Peters, Malou van Nieuwenhof, Hans H J Bor, Jeannine L A Hautvast, Wim van der Hoek, Clementine J Wijkmans, Jan H Vercoulen

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Health-related quality of life changes in patients with Q-fever fatigue syndrome: a four-year follow-up study, 10 years post-infection.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Observational
  5. Article
  6. Review
  7. Microbes and Mental Illness: Past, Present, and Future.Healthcare (Basel, Switzerland) · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Vascular chronic Q fever: quality of life.Epidemiology and infection · 2015
    Article
  16. Article
  17. Article
  18. Article
  19. Irritable bowel syndrome and chronic fatigue 6 years after giardia infection: a controlled prospective cohort study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2014
    Article
  20. 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

8 authors at 4 institutions in 1 country.

Gabriëlla MorroyDepartment of Infectious Disease Control, Municipal Health Service Hart voor Brabant, 's-Hertogenbosch, the Netherlands. g.morroy@ggdhvb.nl
Jeannette B Peters
Malou van Nieuwenhof
Hans H J Bor
Jeannine L A Hautvast
Wim van der Hoek
Clementine J Wijkmans
Jan H Vercoulen
Radboud University Medical Center · NLGGD Hart voor Brabant · NLRadboud University Nijmegen · NLNational Institute for Public Health and the Environment · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn the Netherlands, from 2007 to 2009, 3,522 Q-fever cases were notified from three outbreaks. These are the largest documented outbreaks in the world. Previous studies suggest that symptoms can persist for a long period of time, resulting in a reduced quality of life (QoL). The aim of this study was to qualify and quantify the health status of Q-fever patients after long-term follow-up.

methods870 Q-fever patients of the 2007 and 2008 outbreaks were mailed a questionnaire 12 to 26 months after the onset of illness. We assessed demographic data and measured health status with the Nijmegen Clinical Screening Instrument (NCSI). The NCSI consists of three main domains of functional impairment, symptoms and QoL that are divided into eight sub-domains. The NCSI scores of Q-fever patients older than 50 years (N=277) were compared with patients younger than 50 years (N=238) and with norm data from healthy individuals (N=65) and patients with chronic obstructive pulmonary disease (N=128).

resultsThe response rate was 65.7%. After applying exclusion criteria 515 Q-fever patients were included in this study. The long-term health status of two thirds of Q-fever patients (both younger and older than 50 years) was severely affected for at least one sub-domain. Patients scores were most severely affected on the sub-domains general QoL (44.9%) and fatigue (43.5%). Hospitalisation in the acute phase was significantly related to long-term behavioural impairment (OR 2.8, CI 1.5-5.1), poor health related QoL (OR 2.3,CI 1.5-4.0) and subjective symptoms (OR 1.9, CI 1.1-3.6). Lung or heart disease, depression and arthritis significantly affected the long-term health status of Q-fever patients.

conclusionsQ-fever patients presented 12 to 26 months after the onset of illness severe -clinically relevant- subjective symptoms, functional impairment and impaired QoL. All measured sub-domains of the health status were impaired. Hospitalisation and co-morbidity were predictors for worse scores. Our data emphasise that more attention is needed not only to prevent exposure to Q-fever but also for the prevention and treatment of the long-term consequences of this zoönosis.

Indexed as

AdultAgedCohort StudiesFemaleFollow-Up StudiesHealth StatusHumansMaleMiddle AgedNetherlandsQ FeverTime

Identifiers

PMID21501483
PMCPMC3110112
OpenAlexW2171704853

What OpenQuestion holds

Textmetadata
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.