METHODS FOR ANALYZING LONGITUDINAL PERIODONTAL DATA

纵向牙周数据分析方法

• 批准号: 3896754
• 负责人: A KINGMAN
• 金额: --
• 依托单位: NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/3896754
• 关键词: dental disorder diagnosis; epidemiology; human therapy evaluation; longitudinal human study; periodontium disorder; statistics /biometry

Statistical methods are presented for analyzing longitudinal periodontal loss of attachment data using subject based summary measures. The methods are illustrated by sing data from a 2-year clinical study in which a conservative periodontal therapy was evaluated. The 2-year study period was divided into the first 6-month period (treatment period) and the 2nd 18-months (maintenance period). Individual sites within patients were classified by their initial probing packet depth values: shallow, moderate or deep. Treatment and maintenance effects were assessed by using multivariate statistical methods (Hotelling T- square tests) jointly, and for each class of sites, separately. For this data set, it was shown that this conservative therapy produce significant improvement for deep sites, minor improvement for moderate sites, and significant deterioration for shallow sites.

提出了纵向牙周病的统计分析方法