Characteristic | SOC (n = 54) | Control (n = 117) | P value |
---|---|---|---|
Demographic | |||
Age, years, mean (SD) | 71.4 (10.8) | 68.2 (10.8) | 0.39a |
Female gender, n (%) | 21 (38.9) | 42 (35.9) | 0.74b |
Education, years, mean (SD) | 9.4 (5.3) | 9.9 (4.8) | 0.94a |
Current smoker, n (%) | 9 (17.0) | 30 (25.9) | 0.24b |
Body weight, mean (SD) | 59.5 (11.5) | 64.1 (15.1) | 0.44a |
Body mass index, mean (SD) | 22.9 (4.0) | 23.8 (5.3) | 0.49a |
Clinical | |||
Admission diagnosis, n (%) | 0.83b | ||
Respiratory failure | 23 (42.6) | 53 (45.3) | |
Septic shock/sepsis | 14 (25.9) | 28 (23.9) | |
Heart disease | 12 (22.2) | 18 (15.4) | |
Gastrointestinal bleeding | 3 (5.6) | 8 (6.8) | |
Other | 2 (3.7) | 10 (8.5) | |
APACHE II score, n (%) | 0.13b | ||
0–24 | 26 (48.1) | 72 (61.5) | |
≥ 25 | 28 (51.9) | 45 (38.5) | |
Intake level, n (%) | < 0.01b | ||
FOIS level 1 | 34 (63.0) | 48 (41.0) | |
FOIS levels 2–3 | 17 (31.5) | 33 (28.2) | |
FOIS levels 4–7 | 3 (5.6) | 36 (30.8) | |
Oxygen supplementation, n (%) | 38 (70.4) | 62 (53.9) | 0.05b |
Salivary flow, cm/5 min, median (IQR) | 3.0 (3.0) | 3.9 (2.0) | 0.03a |