Table 2.
Univariate analysis for quantitative and qualitative differences in characteristics of non-ARDS vs ARDS patients.
| Non-ARDS | ARDS | Onetailed t test | |
| Characteristic | (N = 14∗) | (N = 7∗) | P value |
| Parametric variables | |||
| Age, median years (IQR) | 67.0 (59.5–79.0) | 67.0 (62.0–69.0) | .447 |
| BMI, median (IQR) | 28.3 (24.3–29.8) | 23.8 (23.5–36.2) | .433 |
| CCI, median points (IQR) | 6.5 (5.8–7.3) | 8.0 (6.0–8.0) | .202 |
| HFRS, median points (IQR) | 3.7 (2.4–10.1) | 8.5 (4.6–22.4) | .111 |
| Diagnoses, N (IQR) | 24.5 (19.8–34.0) | 31.0 (23.0–57.0) | .044 |
| RRT, median years (IQR) | 4.3 (3.0–5.3) | 10.6 (4.5–14.9) | .016 |
| RRT in KTX, median years (IQR) | 5.1 (3.5–5.9)† | 13.2 (10.0–14.9)‡ | .002 |
| KTT in KTX, median years (IQR) | 3.8 (2.8–5.1)† | 8.2 (6.0–13.3)‡ | .038 |
| HDT in KTX, median years (IQR) | 0.7 (0.0–2.1)† | 3.6 (0.3–6.9)‡ | .138 |
| Baseline GFR in KTX, median (IQR) | 65 (40–68)† | 22 (16–51)‡ | .047 |
| Binomial variables | |||
| RAAS blockade, N (%) | 9 (64) | 4 (57) | 1.000 |
| Hypertension, N (%) | 12 (86) | 6 (86) | .753 |
| Diabetes mellitus, N (%) | 7 (50) | 3 (43) | .562 |
| ABO type A, N (%) | 7 (58) | 5 (71) | .474 |
| HD vs KTX, N (%) | 3 (21) | 4 (57) | .127 |
ARDS = acute respiratory distress syndrome, BMI = body mass index in kg/m2, CCI = Charlson comorbidity index, GFR = glomerular filtration rate in ml/minutes/1.73m2, HD = hemodialysis, HDT = hemodialysis time in transplant recipients, HFRS = hospital frailty risk score, KTT = kidney transplant time, KTX = kidney transplant recipients.
Statistical analysis using standard or Welch corrected t test for parametric and Fisher exact test for binomial variables, respectively.
∗
unless otherwise specified.
†
N = 3.
‡
N = 4.