Cristin-resultat-ID: 1950792
Sist endret: 30. desember 2022, 14:48
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Validity and responsiveness of GHC-index in patients with amalgam-attributed health complaints

Bidragsytere:
  • Admassu Nadew Lamu
  • Bjarne Robberstad
  • Harald Johan Hamre
  • Terje Alræk
  • Frauke Musial og
  • Lars Björkman

Tidsskrift

Acta Odontologica Scandinavica
ISSN 0001-6357
e-ISSN 1502-3850
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Publisert online: 2021
Trykket: 2022
Volum: 80
Hefte: 3
Sider: 226 - 233
Open Access

Importkilder

Scopus-ID: 2-s2.0-85117170769

Beskrivelse Beskrivelse

Tittel

Validity and responsiveness of GHC-index in patients with amalgam-attributed health complaints

Sammendrag

Objective Many patients have medically unexplained physical symptoms (MUPS); some of them attribute their health complaints to dental amalgam fillings. The aim of this study was to assess the validity and responsiveness of General Health Complaints index (GHC-index) for measuring the symptom load in MUPS patients compared to the widely used symptom outcome measure, Giessen Subjective Complaints List (GBB-24). Methods Three outcome measures – GHC-index, GBB-24, and Munich Amalgam Scale (MAS) – were administered at baseline and 12 months after removal of all dental amalgam restorations. The validity and responsiveness of these symptom measures were tested against external anchors: bodily distress syndrome (BDS), SF-36 vitality, and visual analogue scale (VAS). We tested both convergent and known group validities. We also examined the predictive validity and responsiveness to changes for each instrument. Results All the main outcome measures showed evidence of convergent and known group validities. The GHC-index, GBB-24 and MAS were all able to detect the anticipated differences in BDS and Energy. But the GBB-24 was more efficient in discriminating the BDS compared with the GHC-index (relative efficiency: RE = 0.69; 95% CI: 0.41–0.96) and MAS (RE = 0.59; 95% CI: 0.32–0.86). Each main outcome variable revealed good predictive validity for vitality (standardized coefficient: b ≈ 0.71 and R2 ≈ 0.50). Moderate to high sensitivity to change over time was demonstrated, with GHC-index performing better. Conclusion The GHC-index is a valid and responsive instrument for assessing symptom load in MUPS patients attributing their health complaints to amalgam fillings and undergoing amalgam removal.

Bidragsytere

Admassu Nadew Lamu

  • Tilknyttet:
    Forfatter
    ved Institutt for global helse og samfunnsmedisin ved Universitetet i Bergen
  • Tilknyttet:
    Forfatter
    ved NORCE Helse og samfunn - Bivirkningsgruppen ved NORCE Norwegian Research Centre AS

Bjarne Robberstad

  • Tilknyttet:
    Forfatter
    ved Institutt for global helse og samfunnsmedisin ved Universitetet i Bergen

Harald Johan Hamre

  • Tilknyttet:
    Forfatter
    ved Private Universität Witten/Herdecke GmbH

Terje Alræk

  • Tilknyttet:
    Forfatter
    ved NAFKAM ved UiT Norges arktiske universitet

Frauke Musial

  • Tilknyttet:
    Forfatter
    ved NAFKAM ved UiT Norges arktiske universitet
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