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Translation and validation of a Chinese language version of the Early Childhood Oral Health Impact Scale (ECOHIS)
Author(s) -
LEE GILLIAN H. M.,
MCGRATH COLMAN,
YIU CYNTHIA K. Y.,
KING NIGEL M.
Publication year - 2009
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/j.1365-263x.2009.01000.x
Subject(s) - cronbach's alpha , intraclass correlation , medicine , early childhood , construct validity , concurrent validity , reliability (semiconductor) , scale (ratio) , clinical psychology , psychology , developmental psychology , psychometrics , internal consistency , power (physics) , physics , quantum mechanics
Objective. This study aimed to adapt the Early Childhood Oral Health Impact Scale (ECOHIS) for pre‐school children in a Chinese speaking community and to investigate its psychometric properties (validity and reliability). Methods. A Chinese language version of the ECOHIS was derived through a forward–backward translation and tested for face and content validity among a focus group. A convenient sample of pre‐school children ( n = 111) was recruited (including a sub‐sample with early childhood caries and caries‐free children). Parents of the children self‐completed the derived Chinese‐ECOHIS measure. Validity of the measure was assessed by investigating the relationship between dental caries status and Chinese‐ECOHIS scores (construct and criterion validity). A sub‐sample of the parents repeated the ratings of the measure to enable reliability assessments. Both internal and test–retest reliability were determined. Results. A Chinese version of ECOHIS was derived with minor modification to the original version. Chinese‐ECOHIS scores were associated with children’s caries experience (dmft) ( r = 0.66, P < 0.05) supporting convergent validity. In addition, variations in ECOHIS scores were apparent with respect to caries and caries‐free groups ( P < 0.001), supporting the ability to distinguish between patient groups. Cronbach’s alpha values (internal reliability) for total ECOHIS score were 0.91 and intraclass correlation coefficient value (test–retest reliability) was 0.64. Conclusions. A Chinese version of the ECOHIS was developed and demonstrated acceptable validity and reliability. These findings can enable assessments of pre‐school child oral health‐related quality of life in Chinese speaking communities.