Table 2.

List of all data features deleted and corresponding percentage of missing values.

Feature	Description	Cases (% of missing values(N = 5319)	Controls (% of missing values(N = 36,224)
CRP	C-reactive protein (Continuous value)	99.4	99.9
Bone loss	Presence/absence of periodontal bone loss (Boolean value)	98.8	96.9
Plaque	Presence/absence of plaque (Boolean value)	98.7	96.7
Mobility	Presence/absence of tooth mobility (Boolean value)	97.3	94.4
Uric Acid	Uric acid levels(Continuous value)	90.6	98.9
Gingivitis	Presence/absence of gingivitis(Boolean value)	83.1	0
Xerostomia	Presence/absence of xerostomia (Boolean value)	83.1	0
Oral candidiasis	Presence/absence of oral candidiasis (Boolean value)	83.1	0