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Caries experience variables as indicators in caries risk assessment in 6-7-year-old Chinese children
Qi Zhang1, W H van Palenstein Helderman
1Key Laboratory of Oral Biomedical Engineering, Wuhan University, Ministry of Education and Department of Endodontics, School and Hospital of Stomatology, Wuhan, Hubei Province, PR China. zhangqimary@yahoo.com.cn
Objectives:
The aim of the present study is to investigate variables of the past caries experience as indicators of future caries in a Chinese child population.
Methods:
Caries was recorded at baseline and 2 years later in 433, 6-7-year-old Chinese children. Correlation coefficients between variables of the past caries experience and caries increment were calculated. Stepwise logistic regression analyses provided predictor variables. ROC curves presenting sensitivity as function of (100-specificity) were employed to summarize the obtained information. The area under the ROC curves was used as a measure of predictive accuracy.
Results:
Twelve variables of baseline caries experience had a significant (p
Conclusions:
By including non-cavitated caries in the past caries experience of primary molars and permanent first molars, it was possible to construct a screening criterion (d(12)mftmol+D(1)fis+D(2)pitfis), which enabled the selection of true negative children and the selection of a high caries risk group in a 6-7-year-old Chinese child population.
