Intraclass correlations of periodontal measurements.
Intraclass correlations of periodontal measurements.
复制标题
牙周测量的组内相关性。
DOI：
10.1111/j.1600-051x.1985.tb00919.x
复制
发表时间：
1985
影响因子：
6.7
通讯作者：
Lindhe,J
中科院分区：
文献类型：
--
作者：
Haffajee,AD;Socransky,SS;Goodson,JM;Lindhe,J
计算 5 组接受治疗的牙周病患者和 1 组未经治疗的牙周病受试者的附着水平、牙周袋深度、牙龈和菌斑指数评分的变化的方差成分和组内相关系数。依恋水平变化的组内相关系数范围为 0.011 至 0.165（中位数 0.067），而口袋深度变化的组内相关系数范围为 ‐0.009 至 0.178（中位数 0.071）。这些组内相关系数远低于针对牙菌斑测量变化计算的相关系数（中位数 0.268）或牙龈炎症测量变化（中位数 0.264），计算范围为 0.119 至 0.522。袋深度基线的组内相关系数范围为 0.000 至 0.199（中位数 0.053）。对于牙菌斑积聚，从 0.121 到 0.531（中位数 0.222）；对于牙龈炎症，从 0.229 到 0.596（中位数 0.391）。一方面，包深度和附着水平与另一方面牙菌斑积累或牙龈炎症之间的组内相关系数的差异不能根据所采用的测量尺度的差异来解释，因为折叠测量尺度对组内相关系数几乎没有影响。观察到的牙菌斑和牙龈指数变化的较大组内相关系数表明宿主对这些测量的贡献更大。相反，数据表明，决定附着水平或袋深度变化的可变性的主要但绝不是唯一的因素是局部因素的性质。
Components of variance and intraclass correlation coefficients were computed for changes in attachment level, pocket depth, gingival and plaque index scores for 5 groups of treated periodontal disease patients and 1 group of untreated subjects with periodontal disease. The intraclass correlation coefficients for attachment level change ranged from 0.011 to 0.165 (median 0.067), while intraclass correlation coefficients for pocket depth changes ranged from ‐0.009 to 0.178 (median 0.071). These intraclass correlation coefficients were much lower than those computed for changes in measurements of plaque which ranged from 0.086 to 0.568 (median 0.268) or gingival inflammation which ranged from 0.119 to 0.522 (median 0.264). Intraclass correlation coefficients at baseline for pocket depths ranged from 0.000 to 0.199 (median 0.053). for plaque accumulation from 0.121 to 0.531 (median 0.222) and for gingival inflammation from 0.229 to 0.596 (median 0.391). The differences in the intraclass correlation coefficients between packet depth and attachment level on the one hand and plaque accumulation or gingival inflammation on the other could not be explained on the basis of differences in the measurement scale employed, since collapsing measurement scales had little effect on the intraclass correlation coefficients.The observed larger intraclass correlation coefficients for changes in plaque and gingival indices suggest a larger rôle for host contribution to these measurements. In contrast, the data suggest that the major but by no means the sole factor determining the variability of attachment level or pocket depth changes is the nature of the local factors.