Impact of Positive and Negative Affect on Oral Health-Related Quality of Life
Author Information
Author(s): Brennan David S, Singh Kiran A, Spencer A John, Roberts-Thomson Kaye F
Primary Institution: Australian Research Centre for Population Oral Health, School of Dentistry, The University of Adelaide
Hypothesis
The study aims to assess the impact of both positive and negative affect on self-reported oral health-related quality of life.
Conclusion
Both positive and negative affect accounted for additional variance in quality of life scores, indicating their independent effects on self-ratings of health-related quality of life.
Supporting Evidence
- Positive affect and negative affect exhibited a negative correlation of -0.49.
- Negative affect accounted for a larger percentage of variance in OHIP-14 scores than positive affect.
- Both positive and negative affect contributed additional variance in quality of life scores.
Takeaway
This study found that how happy or sad you feel can affect how you think about your oral health and quality of life.
Methodology
A random sample of 45–54 year-olds from metropolitan Adelaide was surveyed using mailed self-complete questionnaires, measuring oral health-related quality of life with OHIP-14 and affectivity with the Bradburn scale.
Potential Biases
Sampling bias is unlikely due to the random selection from the Electoral Roll, but some sub-groups may be under-enumerated.
Limitations
The response rate was lower than anticipated, which may raise concerns about potential bias.
Participant Demographics
Participants were aged 45–54 years from metropolitan Adelaide, with a slightly higher percentage of concession card holders compared to the general population.
Statistical Information
P-Value
<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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