Infection Risk Prediction Model for COVID-19 Based on an Analysis of the Settlement of Particles Generated during Dental Procedures in Dental Clinics

Table 4

Cutoff points of greater discrimination for the associated variables.

Variable	p25	p50	p75	Min.	Max.	Mean	SD	N
Distance	40	78	136	15	320	98	66	1256
Stained area	0	3.4	69	0	5260900	12274	208.3	1256

Value in µm². The total area of the filter paper was 6′358,500 µm². Max. stained area: 82.7%.