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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Ann Intern Med. 2021 Nov 9;175(1):65–73. doi: 10.7326/M21-1687

Table 1.

Patient participant characteristics

Overall (n = 527) Without Delirium (n = 413) With Delirium (n = 114)

Age – mean years (SD) 79.7 (6.6) 79.5 (6.6) 80.5 (6.6)

Male – n (%) 226 (43) 169 (41) 57 (50)

Race* – n (%)
 White 458 (88) 356 (86) 102 (91)
 Black or African American 43 (8) 36 (9) 7 (6)
 Others 22 (4) 19 (5) 3 (3)

Hispanic or Latino* – n (%) 11 (2) 8 (2) 3 (3)

Education* – n (%)
 Less than high school 54 (10) 37 (9) 17 (15)
 High school graduate 191 (37) 143 (35) 48 (44)
 Some college 101 (19) 87 (21) 14 (13)
 College graduate 73 (14) 62 (15) 11 (10)
 Master’s degree 70 (14) 52 (13) 18 (16)
 Doctoral degree 33 (6) 31 (7) 2 (2)

Married* – n (%) 224 (43) 173 (42) 51 (46)

Lives Alone* – n (%) 194 (37) 166 (40) 28 (25)

Charlson Score – n (%)
 0 36 (7) 29 (7) 7 (6)
 1 172 (33) 143 (35) 29 (25)
 2+ 319 (60) 241 (58) 78 (69)

ADL* – sum score (SD) 0.9 (1.4) 0.7 (1.3) 1.4 (1.8)
Impaired in ADL* – n (%) 202 (38) 140 (34) 62 (54)

IADL* – sum score (SD) 1.8 (1.8) 1.5 (1.6) 2.7 (2.1)
Impaired in IADL* – n (%) 333 (63) 244 (59) 89 (78)

Dementia – n (%) 183 (35) 110 (27) 73 (64)

Table Abbreviations and Footnotes:

SD=standard deviation, Charlson= Charlson comorbidity score, ADL=basic Activities of Daily Living, scored 0–6, 6 worst, IADL=Instrumental Activities of Daily Living, 0–7, 7 worst

*

Number of missing data: race (4), ethnicity (2), education (5), marital status (2), living situation (2), ADL (2), IADL (2).