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Type: Journal article
Title: Positive and negative affect and oral health-related quality of life
Author: Brennan, D.
Singh, K.
Spencer, A.
Roberts-Thomson, K.
Citation: Health and Quality of Life Outcomes, 2006; 4(83):1-10
Publisher: BioMed Central Ltd.
Issue Date: 2006
ISSN: 1477-7525
Organisation: Australian Research Centre for Population Oral Health
Statement of
David S Brennan, Kiran A Singh, A John Spencer and Kaye F Roberts- Thomson
Abstract: Background: The aims of the study were to assess the impact of both positive (PA) and negative affect (NA) on self-reported oral health-related quality of life and to determine the effect of including affectivity on the relationship between oral health-related quality of life and a set of explanatory variables consisting of oral health status, socio-economic status and dental visiting pattern. Methods: A random sample of 45–54 year-olds from metropolitan Adelaide, South Australia was surveyed by mailed self-complete questionnaire during 2004–05 with up to four follow-up mailings of the questionnaire to non-respondents (n = 986 responded, response rate = 44.4%). Oral health-related quality of life was measured using OHIP-14 and affectivity using the Bradburn scale. Using OHIP-14 and subscales as the dependent variables, regression models were constructed first using oral health status, socio-economic characteristics and dental visit pattern and then adding PA and NA as independent variables, with nested models tested for change in R-squared values. Results: PA and NA exhibited a negative correlation of -0.49 (P < 0.01). NA accounted for a larger percentage of variance in OHIP-14 scores (3.0% to 7.3%) than PA (1.4% to 4.6%). In models that included both PA and NA, PA accounted for 0.2% to 1.1% of variance in OHIP-14 scores compared to 1.8% to 3.9% for NA. Conclusion: PA and NA both accounted for additional variance in quality of life scores, but did not substantially diminish the effect of established explanatory variables such as oral health status, socio-economic status and dental visit patterns.
Keywords: Humans; Tooth Diseases; Sickness Impact Profile; Analysis of Variance; Dentures; Affect; Personality; Self Concept; Psychometrics; Quality of Life; Social Class; Middle Aged; Oral Health; Urban Population; Dental Health Services; South Australia; Female; Male; Surveys and Questionnaires
Rights: © 2006 Brennan et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
RMID: 0020061483
DOI: 10.1186/1477-7525-4-83
Published version:
Appears in Collections:Dentistry publications
Australian Research Centre for Population Oral Health publications

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