Article Figures & Tables
Tables
- Table 1
Baseline characteristics of older (age ≥ 65 yr) acute care surgical patients according to delirium status
Characteristic No delirium, no. (%) of patients*
n = 249Delirium, no. (%) of patients*
n = 73All episodes Longer episodes†
n = 49Age, yr, mean ± SD 75.7 ± 7.7 77.5 ± 7.4 77.8 ± 7.6 Female sex 113 (45.4) 33 (45.2) 24 (49.0) White 176 (70.7) 62 (84.9) 38 (77.6) Body mass index, mean ± SD 27.3 ± 6.0 26.4 ± 6.4 26.2 ± 7.0 Smoker 29 (11.6) 11 (15.1) 8 (16.3) Living situation Home without support 189 (75.9) 43 (58.9)‡ 28 (57.1)‡ Home with informal caregiver 48 (19.3) 23 (31.5)‡ 15 (30.6)‡ Supportive living/long-term care 11 (4.4) 6 (8.2)‡ 5 (10.2)‡ Missing 1 (0.4) 1 (1.4)‡ 1 (2.0)‡ Clinical Frailty Scale Very fit/well 63 (25.3) 9 (12.3)‡ 3 (6.1)‡ Managing well/vulnerable 141 (56.6) 31 (42.5)‡ 24 (49.0)‡ Mildly or moderately frail 45 (18.1) 33 (45.2)‡ 22 (44.9)‡ Charlson Comorbidity Index score, median (interquartile range) 0 (0–2) 1 (0–3)‡ 1 (1–2)‡ Past medical history Cardiovascular disease 65 (26.1) 28 (38.4)‡ 19 (38.8)‡ Diabetes 50 (20.0) 14 (19.2) 12 (24.5) Dyslipidemia 57 (22.9) 27 (37.0)‡ 17 (34.7)‡ Cognitive decline 4 (1.6) 6 (8.2)‡ 4 (8.2)‡ Sensory impairment 9 (3.6) 7 (9.6)‡ 5 (10.2)‡ Respiratory problem 56 (22.5) 25 (34.2)‡ 15 (30.6)‡ American Society of Anesthesiologists classification score, mean ± SD 2.6 ± 0.74 3.1 ± 0.78‡ 3.1 ± 0.73 Total no. of medications, mean ± SD 4.57 ± 3.44 5.85 ± 3.80‡ 5.73 ± 3.93‡ Surgery area Intestinal 94 (37.8) 48 (5.8.)‡ 33 (67.3)‡ Appendix 29 (11.6) 6 (8.2)‡ 3 (6.1)‡ Gallbladder 63 (25.3) 12 (16.4)‡ 8 (16.3)‡ Hernia repair 40 (16.1) 3 (4.1)‡ 2 (4.1)‡ Other 23 (9.2) 4 (5.5)‡ 3 (6.1)‡ Time in operating room, min, mean ± SD 106 ± 55 127 ± 61‡ 126 ± 65‡ Intensive care unit admission 21 (8.4) 22 (30.1)‡ 14 (28.6)‡ Foley catheter use 153 (61.4) 64 (87.7)‡ 44 (89.8)‡ Length of stay, d, median (interquartile range) 7 (4–11) 16 (9–29)‡ 16 (10–29)‡ - Table 2
Multivariable logistic regression analysis for overall delirium and longer delirium episodes
Variable OR (95% CI) Overall delirium Longer delirium episodes Appendix surgery 5.26 (1.40–19.75) — Intestinal surgery 4.74 (1.86–12.08) — Mild to moderate frailty 4.50 (1.76–11.50) 7.77 (2.18–27.65) Gallbladder surgery 4.48 (1.41–14.17) — Foley catheter use 3.37 91.36–8.35) 4.48 (1.76–11.50) Intensive care unit admission 1.37 (1.06–1.78) — CI = confidence interval; OR = odds ratio.