Table 5.

Symptoms, PCR, and N-antibody in reliable reporting facilities

COVID-19 symptoms or prior PCR/antigen positive result	Residents			Staff
	N-antibody			N-antibody
	Positive	Total	Percenta	Positive	Total	Percenta
Negative both	21	85	24.7	26	175	14.9
Symptoms positive/PCR missing or negative	0	2	0.0	26	50b	52.0
PCR positive/symptoms missing or negative	85	95	89.5	21	29	72.4
Both positive	6	6	100.0	47	51	92.2
Total	112	188	59.6	120	305	39.3

Facilities for whom study team determined that PCR and antigen results were well-documented

^aBoth residents and staff, p < 0.0001 Mantel–Haenszel Chi square for trend

^bOf 50 staff, 44 were PCR negative (22 N-Ab positive), 6 lacked PCR result (4 N-Ab positive)

Nine residents (Three N-antibody positive) and Four staff (One N-antibody positive) were missing both symptoms and PCR information