Table 2.

Proportion of PACT Patients Performing at or Below the Mild/Moderate and Severe Ranges of Impairment Across Cognitive Tests by ICU Status

Domain	Overall (N = 82), % impaired∗		Non-ICU (N = 34), % Impaired		Post-ICU (N = 48), % Impaired
	Mild/Moderate	Severe	Mild/Moderate	Severe	Mild/Moderate	Severe
RAVLT acquisition	26.8	14.6	14.7	8.8	35.4	18.8
RAVLT delayed recall	26.8	14.6	14.7	8.8	35.4	18.8
Oral Trail Making Test Part A	35.4	25.6	32.4	20.6	37.5	29.2
Oral Trail Making Test Part B	15.9†	13.4†	11.8§	8.8§	18.8‖	16.7‖
Number span forward	1.2	1.2	0	0	2.1	2.1
Number span backward	13.4	4.9	8.8	2.9	16.7	6.3
Letter-cued verbal fluency	25.6‡	8.5‡	11.8§	2.9§	35.4	12.5
Category-cued verbal fluency	31.7‡	9.8‡	26.5§	5.9§	35.4	12.5
Cognitive composite score	13.4	1.2	5.9	2.9	18.8	0

Abbreviations: ICU = intensive care unit; PACT = Post-Acute COVID-19 Team; RAVLT = Rey Auditory Verbal Learning Test.

^∗Mild/moderate and severe cognitive impairment were defined as performances ≥1.5 and ≥2 standard deviations below published age-adjusted normative means. Hence, 7% of normative control group participants would be expected to produce a score in the mild/moderate range of impairment on any single cognitive test, and 2% would be expected to produce a score in the severe range of impairment on any single cognitive test.

^†n = 77.

^‡n = 81.

^§n = 33.

^‖n = 44.