Table 1 Demographics and preoperative data
From: Does using a femoral nerve block for total knee replacement decrease postoperative delirium?
Femoral Block ± PCA | PCA only | ||||
|---|---|---|---|---|---|
N1 | Mean ± SD or N (%) | N2 | Mean ± SD or N (%) | P* | |
Age | 31 | 72.8 ± 5.8 | 54 | 74.5 ± 6.5 | 0.23 |
Gender | 31 | 54 | 0.95 | ||
Female | 18 (58%) | 31 (57%) | |||
Male | 13 (42%) | 23 (43%) | |||
Race | 31 | 54 | 0.84 | ||
White | 23 (74%) | 39 (72%) | |||
Non-white | 8 (26%) | 15 (28%) | |||
Education | 30 | 52 | 0.17 | ||
Less than college | 12 (40%) | 29 (56%) | |||
College or above | 18 (60%) | 23 (44%) | |||
History of CNS disorders | 31 | 18 (58%) | 52 | 35 (67%) | 0.40 |
Daily Alcohol | 31 | 53 | 0.57 | ||
< 2 drinks | 24 (77%) | 38 (72%) | |||
≥ 2 drinks | 7 (23%) | 15 (28%) | |||
TICS Scores | 28 | 33.1 ± 5.8 | 47 | 31.0 ± 3.8 | 0.09 |
(mean ± SD) | |||||
GDS | 30 | 3.1 ± 3.0 | 48 | 3.2 ± 2.7 | 0.93 |
(mean ± SD) | |||||
ASA | 31 | 54 | 0.01 | ||
1 and 2 | 8 (26%) | 29 (54%) | |||
≥ 3 | 23 (74%) | 25 (46%) | |||
Use of preoperative opioids | 30 | 15 (50%) | 53 | 17 (32%) | 0.11 |
Use of preoperative benzodiazepine | 30 | 5 (17%) | 53 | 8 (15%) | 0.85 |
Preoperative pain level | 31 | 3.7 ± 3.2 | 52 | 2.5 ± 2.7 | 0.07 |