Table 1.

Summary of Survey Responses by Local COVID-19 Prevalence (Cases per 100,000)

Survey Item	Low Prevalence (< 5,000)	Medium Prevalence (5,000-20,000)	High Prevalence (> 20,000)
Laboratory type (% of responses)
Community	61	31	21
Academic	26	40	57
Private/other	13	29	21
Laboratory size (% of responses)
Small (< 20 tests per day)	73	57	43
Medium (20-50 tests per day)	24	37	43
Large (> 50 tests per day)	3	6	14
PFT classification (% of responses)
PFT considered high AGP	88	69	82
PFT not considered high AGP	12	31	18
PPE practices (% utilization)
Patient mask	94	94	93
Provider mask	100	97	93
Surgical mask	66	69	61
N95	87	81	82
PAPR	19	17	21
Face shield	94	94	96
Gown	70	75	79
Gloves	84	89	82
Hat	19	17	7
Shoe covers	4	3	0
Disinfection practices (% utilization)
Disinfect equipment and surface between patients	100	100	100
In-line antimicrobial filter	93	89	93
Change flow sensor between patients	28	28	25
Mean air exchange time, min	33	24	32
HEPA filter in at least some rooms	31	47	39
UV sanitization in at least some rooms	15	25	14
Negative pressure in at least some rooms	40	33	29
Waiting room precautions	96	92	96
Patient hand hygiene available	84	78	75
Patient screening practices (% utilization)
Symptoms screening	97	100	96
Temperature screening	88	92	89
SARS-CoV-2 PCR test requireda	51	39	74a
Mean wait time if previous positive COVID-19 test, d	20	22	21
Operational status (% of responses)
Fully operational	75	69	64
Partially operational	25	31	32
Fully closed	0	0	4

AGP = aerosol generating potential; HEPA = high-efficiency particulate air; PAPR = powered air-purifying respirator; PCR = polymerase chain reaction; PFT = pulmonary function test; PPE = personal protective equipment; UV = ultraviolet.

^aP = .02 for positive testing relative to low and medium prevalence groups.