Table 2

Correlation between the COVID-19-specific hospital census and lagged COVID Hotspotting Score between 7 and 42 days at the regional and medical centre (facility values A through T) levels

Location	Correlation between lagged COVID Hotspotting Score and forthcoming COVID-19-specific hospital census
Location	7 days	14 days	21 days	28 days	35 days	42 days
KPNC region	0.35	0.55	0.70	0.79	0.78	0.71
Facility A	0.52	0.68	0.77	0.78	0.72	0.58
Facility B	0.06	0.34	0.41	0.55	0.59	0.56
Facility C	0.18	0.35	0.48	0.56	0.54	0.50
Facility D	0.48	0.61	0.71	0.77	0.72	0.62
Facility E	0.26	0.45	0.59	0.65	0.64	0.56
Facility F	0.29	0.39	0.52	0.61	0.57	0.53
Facility G	0.05	0.28	0.48	0.63	0.72	0.70
Facility H	0.29	0.37	0.50	0.55	0.51	0.44
Facility I	0.29	0.48	0.63	0.72	0.73	0.69
Facility J	0.06	0.26	0.42	0.50	0.58	0.52
Facility K	0.35	0.46	0.57	0.62	0.55	0.47
Facility L	0.17	0.23	0.37	0.53	0.53	0.42
Facility M	0.41	0.43	0.35	0.36	0.33	0.28
Facility N	0.36	0.43	0.50	0.54	0.61	0.64
Facility O	0.33	0.48	0.61	0.71	0.74	0.69
Facility P	0.15	0.33	0.48	0.59	0.59	0.56
Facility Q	0.15	0.34	0.47	0.53	0.56	0.48
Facility R	0.67	0.77	0.72	0.61	0.46	0.31
Facility S	0.25	0.38	0.49	0.51	0.52	0.51
Facility T	0.54	0.69	0.73	0.72	0.67	0.54

Pearson correlation values were calculated on a daily basis including data from 1 April 2020 through 30 September 2020. The highest correlation between the COVID Hotspotting Score and lagged COVID-19 census is indicated in red font.