Document Detail

Salivary biomarkers associated with academic assessment stress among dental undergraduates.
MedLine Citation:
PMID:  14587673     Owner:  NLM     Status:  MEDLINE    
This study aims to assess the difference in self-perceived stress before and after an academic assessment and its association with the marks scored and to study the association of salivary cortisol, Immunoglobulin A (IgA), and chromogranin A (CgA) with stress levels before and after the assessment. Thirty-one third-year dental undergraduates indicated how stressed they felt on a 5-point rating scale just prior to and immediately after a one-hour written test. Five-minute unstimulated whole saliva samples were also collected at those times to measure salivary cortisol, IgA, and CgA. Students rated significantly higher stress scores before (median [inter quartile range]: 3[1]), compared to after the test (2[2]) (p = 0.015). Higher cortisol levels (mean: 6.32 nmol/l) were observed before than after the exam (mean: 5.16 nmol/l) (p = 0.015). No significant differences were noted between the pre- and post-test saliva samples for salivary IgA and CgA levels. A negative correlation was seen between post-test stress scores and test marks (Spearman's r = -0.325, p = 0.07). Dental students perceived a higher level of stress prior to the test, which declined after that. Pre-test stress scores were associated with raised salivary cortisol, but not IgA or CgA. Students who perceived higher levels of stress after the test generally had poorer results.
Vivian Ng; David Koh; Betty Y Y Mok; Sin-Eng Chia; Lum-Peng Lim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of dental education     Volume:  67     ISSN:  0022-0337     ISO Abbreviation:  J Dent Educ     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-10-31     Completed Date:  2003-11-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8000150     Medline TA:  J Dent Educ     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1091-4     Citation Subset:  D; IM    
Department of Community, Occupational, and Family Medicine, Faculty of Medicine, National University of Singapore, Singapore.
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MeSH Terms
Biological Markers / analysis
Chromogranin A
Chromogranins / analysis
Cross-Sectional Studies
Education, Dental*
Educational Measurement*
Hydrocortisone / analysis
Immunoglobulin A, Secretory / analysis
Saliva / chemistry*
Statistics, Nonparametric
Stress, Psychological / metabolism*
Students, Dental / psychology*
Reg. No./Substance:
0/Biological Markers; 0/Chromogranin A; 0/Chromogranins; 0/Immunoglobulin A, Secretory; 50-23-7/Hydrocortisone

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