Table 1.
Characteristics and clinical outcomes of patients at risk for ARDS
| Characteristic | Total cohort (n = 160) | Steroids (n = 91) | Non steroids (n = 69) | P-value |
|---|---|---|---|---|
| Age | 62.50 (43.25, 71.75) | 65 (49, 72) | 58 (39, 69) | 0.073 |
| Female sex, % | 74 (46.5) | 40 (44) | 34 (50) | 0.450 |
| SAPS II score | 51.66 (16) (95% CI 49.17–54.16) | 54.43 (16.25) (95% CI 51.04–57.81) | 48.01 (14.96) (95% CI 44.42–51.61) | 0.011 |
| GCS | 15 (9, 15) | 15 (9, 15) | 15 (10.5, 15) | 0.925 |
| PaO2/FiO2 | 211 (136.16, 313.65) | 220 (148, 316.66) | 199 (101.5, 311.25) | 0.18 |
| Mechanical ventilation, n (%) | 54 (33.8) | 32 (35.2) | 22 (31.9) | 0.664 |
| Primary ARDS risk factor | ||||
| Aspiration, n (%) | 28 (17.5) | 19 (20.9) | 9 (13) | 0.089 |
| Pneumonia, n (%) | 55 (34.4) | 26 (28.6) | 29 (42) | |
| Sepsis, n (%) | 45 (28.1) | 29 (31.9) | 16 (23.2) | |
| Shock, n (%) | 18 (11.3) | 7 (7.7) | 11 (15.9) | |
| Other, n (%) | 14 (8.8) | 10 (11) | 4 (5.8) | |
| Patient outcomes | ||||
| Mortality, n (%) | 62 (38.8) (95% CI 31.0–46.0) | 39 (42.9) (95% CI 32.0–53.0) | 23 (33.3) (95% CI 22.0–45.0) | 0.221 |
| Ventilator days | 1.15 (0, 3.4) | 1.08 (0, 3.36) | 1.16 (0, 3.62) | 0.528 |
| ICU-LOS days | 4.77 (2.05, 9.74) | 4.40 (2.18, 11.06) | 4.97 (1.90, 9.40) | 0.737 |
| Hospital LOS days | 8.95 (3.80, 18) | 8.08 (3.68, 16.87) | 9.90 (3.82, 22.7) | 0.521 |
[i] Abbreviations: SAPS II: Simplified Acute Physiology Score II; GCS: Glasgow Coma Scale; PaO2: Partial pressure of oxygen; FiO2: fraction of inspired oxygen; LOS: Length of stay. Data are presented as mean ± standard deviation for normally distributed continuous variables, median (interquartile range) for non-normally distributed continuous variables, and number (percentage) for categorical variables. 95% confidence intervals are provided for key clinical outcomes and severity measures.
Table 2.
Steroid types
| Steroid type | Number (n) | Percentage (%) |
|---|---|---|
| Dexamethasone | 26 | 28.6 |
| Hydrocortisone | 50 | 54.9 |
| Methylprednisolone | 8 | 8.8 |
| Prednisolone | 1 | 1.1 |
| Prednisone | 6 | 6.6 |
| Total | 91 | 100% |
Table 3.
Logistic regression analyses for steroid use and mortality (all patients)
| Variable | P value | Odd ratio | 95% CI Lower | 95% CI Upper |
|---|---|---|---|---|
| Univariate analysis | ||||
| Steroid use | 0.222 | 1.500 | 0.783 | 2.874 |
| Multivariate analysis | ||||
| Steroid use | 0.446 | 1.320 | 0.646 | 2.697 |
| Age | 0.499 | 0.993 | 0.974 | 1.013 |
| SAPS II | 0.207 | 1.015 | 0.992 | 1.040 |
| Mechanical ventilation | 0.412 | 0.713 | 0.317 | 1.601 |
| PaO2/FiO2 | 0.836 | 1.000 | 0.998 | 1.003 |
| Sepsis | 0.168 | 0.572 | 0.259 | 1.265 |
| Shock | 0.864 | 1.100 | 0.370 | 3.267 |
| Vasopressor use | 0.007 | 3.424 | 1.396 | 8.398 |
Table 4.
Characteristics and clinical outcomes of patients at risk for ARDS (patients received steroids)
| Characteristic | Total cohort (n = 76) | Dexamethasone (n = 26) | Hydrocortisone (n = 50) | P-value |
|---|---|---|---|---|
| Age | 64 (49, 72) | 63.5 (36.75, 72) | 64.5 (52.5, 72) | 0.480 |
| Female sex, n (%) | 33 (43.4) | 7 (26.9) | 26 (52) | 0.036 |
| SAPS II score | 55.83 (15.33) (95% CI 52.33–59.33) | 49.27 (16.87) (95% CI 42.46–56.08) | 59.24 (13.42) (95% CI 55.43–63.05) | 0.006 |
| GCS | 15 (9, 15) | 15 (8.75, 15) | 15 (9, 15) | 0.658 |
| PaO2/FiO2 | 211.25 (138.25, 324.75) | 208.75 (150.75, 414.25) | 212.50 (137.66, 315.42) | 0.361 |
| Mechanical ventilation n (%) | 26 (34.2) | 10 (38.5) | 16 (32) | 0.573 |
| Primary ARDS risk factor | ||||
| Aspiration, n (%) | 14 (18.4) | 2 (7.7) | 12 (24) | 0.291 |
| Pneumonia, n (%) | 22 (28.9) | 11 (42.3) | 11 (22) | |
| Sepsis, n (%) | 25 (32.9) | 8 (30.8) | 17 (34) | |
| Shock, n (%) | 6 (7.9) | 2 (7.7) | 4 (8) | |
| Other, n (%) | 9 (11.8) | 3 (11.50) | 6 (12) | |
| Patient outcomes | ||||
| Mortality, n (%) | 36 (47.4) (95% CI 36.0–59.0) | 7 (26.9) (95% CI 9.0–45.0) | 29 (58) (95% CI 44.0–72.0) | 0.010 |
| Ventilator days | 1.3 (0, 3.4) | 1.58 (0, 5.35) | 1.26 (0, 3.23) | 0.650 |
| ICU-LOS days | 3.72 (2.11, 9.78) | 3.95 (1.98, 7.38) | 3.72 (2.23, 12.21) | 0.525 |
| Hospital LOS days | 7.8(3.25, 16.84) | 7.43 (2.21, 16.36) | 8.01 (3.80, 17.08) | 0.443 |
[i] Abbreviations: SAPS II: Simplified Acute Physiology Score II; GCS: Glasgow Coma Scale; PaO2: Partial pressure of oxygen; FiO2: fraction of inspired oxygen; LOS: Length of stay. Data are presented as mean ± standard deviation for normally distributed continuous variables, median (interquartile range) for non-normally distributed continuous variables, and number (percentage) for categorical variables. 95% confidence intervals are provided for key clinical outcomes and severity measures.
Table 5.
Logistic regression analyses for hydrocortisone and mortality (patients received steroids)
| Variable | P value | Odd ratio | 95% CI Lower | 95% CI Upper |
|---|---|---|---|---|
| Univariate analysis | ||||
| Hydrocortisone | 0.012 | 3.748 | 1.335 | 10.527 |
| Multivariate analysis | ||||
| Hydrocortisone | 0.035 | 4.406 | 1.111 | 17.476 |
| Age | 0.307 | 0.983 | 0.952 | 1.015 |
| SAPS II | 0.282 | 1.022 | 0.983 | 1.062 |
| Mechanical ventilation | 0.617 | 1.369 | 0.400 | 4.690 |
| PaO2/FiO2 | 0.395 | 1.002 | 0.998 | 1.006 |
| Sepsis | 0.516 | 0.693 | 0.229 | 2.098 |
| Shock | 0.243 | 4.214 | 0.376 | 47.246 |
| Vasopressor use | 0.895 | 1.124 | 0.200 | 6.314 |