Table 2.

Discriminative validity.

Oral outcomes	OHIP Sp score mean [95% CI]	Dif [95% CI]	P-value§	ROC&	[95% CI]
Lost ≥ 1 tooth loss
Yes (n = 1,065)	13.5 [13.0;14.1]	4.3 [3.9;4.7]	< 0.001	0.66	[0.64;0.68]
No (n = 8,068)	9.2 [9.0;9.3]
Lost ≥ 2 teeth loss
	-	-	-	0.69	[0.66;0.71]
Lost ≥ 3 teeth loss
	-	-	-	0.71	[0.64;0.80]
Lost ≥ 4 teeth loss
	-	-	-	0.76	[0.59;0.93]
Presence of NUG
Yes (n = 616)	11.9 [11.3;12.6]	2.4 [1.8;3.0]	< 0.001	0.59	[0.57;0.62]
No (n = 8,517)	9.5 [9.4;9.7]
Presence of CAL ≥ 1 mm
Yes (n = 6,321)	10.2 [10.0;10.3]	1.6 [1.3;1.9]	< 0.001	0.57	[0.55;0.58]
No (n = 2,812)	8.6 [8.4;8.9]
Presence of CAL ≥ 3 mm
Yes (n = 409)	13.0 [12.3;13.8]	3.5 [2.8;4.2]	< 0.001	0.64	[0.61;0.67]
No (n = 8,724)	9.5 [9.4;9.7]
Presence of CAL ≥ 4 mm
	-	-	-	0.70	[0.64;0.77]
Presence of CAL ≥ 5 mm
	-	-	-	0.78	[0.68;0.87]

([95% CI] = 95% confidence interval; NUG = Necrotizing ulcerative gingival lesions; CAL = Clinical attachment loss; § = Mann Whitney; & = Area Under the Receiver Operating Characteristic curve; Dif = Difference for the means).