Table 2.
Sociodemographic and Clinical Characteristics
| Stratified by POD and POCD at 2 Months (N=536) | |||||
|---|---|---|---|---|---|
| Characteristics | Total Study Sample* | POD− POCD− |
POD+ POCD− |
POD− POCD+ |
POD+ POCD+ |
| Number of observations [N (%)] | 551 | 319 | 95 | 91 | 31 |
| Age (years) [mean (SD)] | 77 (5) | 76 (5) | 77 (5) | 77 (5) | 78 (5) |
| Sex [n (%)] | |||||
| Men | 231 (42) | 129 (40) | 37 (39) | 47 (52) | 13 (42) |
| Women | 320 (58) | 190 (60) | 58 (61) | 44 (48) | 18 (58) |
| Race [n (%)] | |||||
| White | 510 (93) | 298 (93) | 84 (88) | 85 (93) | 29 (94) |
| All other race and ethnicity groups | 41 (7) | 21 (7) | 12 (13) | 6 (6) | 1 (4) |
| Education (years) [mean (SD)] | 15 (3) | 15 (3) | 15 (3) | 14 (3) | 14 (2) |
| 3MS Score [mean (SD)] | 93.6 (5.3) | 94.5 (4.8) | 91.6 (5.7) | 92.7 (5.8) | 92.5 (5.9) |
| General cognitive performance, (GCP) [mean (SD)] | 57.7 (7.2) | 58.9 (7.2) | 54.7 (6.3) | 57.5 (7.4) | 55.6 (6.7) |
| Proxy IQCODE [mean (SD)] | 3.1 (0.2) | 3.1 (0.2) | 3.2 (0.3) | 3.1 (0.2) | 3.3 (0.3) |
| Charlson Comorbidity Index, [mean (SD)] | 1.02 (1.3) | 0.90 (1.2) | 1.29 (1.3) | 1.14 (1.3) | 1.10 (1.4) |
| Surgery type [n (%)] | |||||
| Orthopedic | 446 (81) | 265 (83) | 74 (78) | 72 (79) | 24 (77) |
| Vascular | 34 (6) | 13 (4) | 8.5 (9) | 8.7 (10) | 1.5 (5) |
| Gastrointestinal | 71 (13) | 41 (13) | 13 (14) | 10 (11) | 5.2 (17) |
| Anesthesia type [n (%)] | |||||
| General | 455 (85) | 265 (84) | 83 (87) | 78 (86) | 29 (97) |
| Spinal | 77 (14) | 52 (16) | 12 (13) | 12 (13) | 1 (3) |
| General & Spinal | 4 (1) | 2 (1) | 0 (0) | 1 (1) | 0 (0) |
| Duration of surgery (minutes) [mean (SD)] | 144 (77) | 133 (67) | 166 (88) | 153 (87) | 157 (79) |
| Duration of anesthesia (minutes) [mean (SD)] | 193 (81) | 182 (73) | 219 (96) | 202 (85) | 204 (77) |
*
N=551, baseline characteristics, excludes those who had died or were lost to follow-up at 2 months.
POCD = postoperative cognitive dysfunction, proportions estimated from multiply-imputed data; POD = postoperative delirium; 3MS = Modified Mini-Mental State.