表 3.

腭中缝形态特点分期与牙龄诊断试验分析：诊断效能指标

Diagnostic test analysis between MPS stage and dental age: diagnostic efficiency indexes

Index	Left lower canine				Left lower first premolar				Left lower second premolar				Left lower second molar
	DA H-MPS 4s2	DA G-MPS 3	DA H-MPS 5		DA H-MPS 4s2	DA H-MPS 5	DA G-MPS 3		DA H-MPS 4s2	DA H-MPS 5	DA G-MPS 3		DA H-MPS 4s2	DA H-MPS 5	DA D-MPS 1
DA, dental age; MPS, midpalatal suture; AUC, area under receiver operating characteristic curve; PLR, positive likelihood ratio.
AUC	0.696	0.662	0.649		0.678	0.660	0.642		0.715	0.685	0.639		0.734	0.700	0.666
PLR	1.710	3.066	1.471		1.605	1.488	3.025		1.841	1.624	2.753		2.011	1.724	19.917
Sensitivity	0.946	0.481	0.929		0.946	0.976	0.425		0.942	0.964	0.435		0.931	0.952	0.349
Specificity	0.447	0.843	0.369		0.411	0.344	0.860		0.488	0.406	0.842		0.537	0.448	0.982