Table 1.
Baseline and ICU characteristics, stratified by fiber intake.
| CHARACTERISTICS (N, %) | NO FIBER (N=36) | LOW FIBER (N=46) | HIGH FIBER (N=47) | P-VALUE |
|---|---|---|---|---|
| Baseline | ||||
| Female sex | 17 (47) | 21 (48) | 19 (40) | 0.51 |
| Age | 0.09 | |||
| <60 | 14 (39) | 12 (26) | 21 (45) | |
| 60–70 | 10 (28) | 24 (52) | 13 (28) | |
| >70 | 12 (33) | 10 (22) | 13 (28) | |
| ICU type | 0.23 | |||
| Medical | 21 (58) | 20 (43) | 28 (60) | |
| Surgical | 15 (42) | 26 (57) | 19 (40) | |
| Immunosuppression | 6 (30) | 4 (42) | 8 (39) | 0.44 |
| Kidney disease | 6 (13) | 7 (15) | 9 (19) | 0.72 |
| Diabetes | 16 (34) | 16 (34) | 14 (30) | 0.38 |
| Pulmonary disease | 3 (6) | 2 (4) | 4 (8) | 0.49 |
| Intensive care unit | ||||
| Sepsis | 16 (34) | 12 (26) | 7 (15) | <0.01 |
| APACHE IV score | <0.01 | |||
| Lowest tertile (< 45) | 7 (19) | 14 (30) | 25 (53) | |
| Medium tertile (45–70) | 9 (25) | 16 (35) | 12 (26) | |
| Highest tertile (>70) | 20 (56) | 16 (35) | 10 (21) | |
| Antibiotics | 0.02 | |||
| None | 2 (6) | 10 (22) | 17 (36) | |
| Narrow-spectrum | 12 (33) | 10 (22) | 10 (21) | |
| Broad-spectrum | 22 (61) | 26 (56) | 20 (42) | |
| Proton pump inhibitors | 16 (44) | 22 (48) | 25 (53) | 0.72 |
| Mechanical ventilation | 14 (39) | 4 (9) | 3 (6) | <0.01 |
| Hemodialysis | 6 (17) | 3 (6) | 1 (2) | <0.01 |
| Vasopressors | 14 (30) | 8 (17) | 5 (11) | <0.01 |