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. 2021 Sep 30;118(42):e2113401118. doi: 10.1073/pnas.2113401118

Table 1.

Patient characteristics of propensity score matched cohort from three health care systems

UPHS n = 162,118 MSMC n = 115,073 UIHC n = 102,420
Characteristics Lithium use Nonlithium use Lithium use Nonlithium use Lithium use Nonlithium use
Matched patients 425 425 150 150 670 670
SARS-CoV-2 positive 33 42 10 22 50 120
Female (%) 251 (59) 251 (59) 76 (50.7) 75 (50.7) 390 390
Mean age (SD) 43 (15) 43 (17) 48.9 (19.1) 48.7 (19.2) 42.6 (16.4) 42.6 (16.4)
Race white (%) 306 (72) 306 (48) 56 (37.3) 56 (37.3) 610 (91) 610 (91)
Race black (%) 66 (15.5) 66 (15.5) 23 (15.3) 23 (15.3) 30 (4.4) 30 (4.4)
Race other (%) 31 (7.2) 31 (7.2) 37 (24.7) 37 (24.7) 40 (5.9) 40 (5.9)
Race unknown (%) 22 (5.1) 22 (5.1) 34 (22.7) 34 (22.7) 0 0
Bipolar disorder 290 49 66 (44.0) 3 (2.0) 380 10

n is the total number of patients tested for SARS-CoV-2.