Table 3.
Variables associated with desaturation in the six-minute walk test (6MWT) 6-months after hospital discharge.
| Variables |
Present
(n = 15) |
Absence (n = 29) | p-valuea |
RR
(IC 95%)b |
|---|---|---|---|---|
| Age, years, mean (SD) | 56 (10) | 52.7 (11) | 0.24 | NA |
| Gender | ||||
| Male, n (%) | 6 (40) | 25 (86) | 0.001* | 0.13 (0.03–0.6) |
| BMI, mean (SD) | 32 (6.8) | 30 (3.8) | 0.52 | NA |
| Extent of lung involvement at admissionc n (%) | ||||
| 25–50% | 4 (27) | 12 (50) | 0.08 | NA |
| >50% | 11 (73) | 12 (50) | ||
| Charlson Comorbidity Index, median (25–75) | 1 (1, 2) | 2 (1–3) | 0.044* | 1.5 (0.8–2.9) |
| SAPS III, mean (SD) | 53 (15.0) | 46 (10.1) | 0.15 | NA |
| Respiratory SOFA | ||||
| D1, mean (SD) | 2.9 (1.2) | 2.7 (0.9) | 0.50 | NA |
| D3, mean (SD) | 2.6 (1.1) | 1.8 (1.5) | 0.045* | 1.06 (0.8–1.4) |
| SOFA | ||||
| D1, mean (SD) | 3.6 (1.7) | 3.6 (1.7) | 0.73 | NA |
| D3, mean (SD) | 3.6 (2.8) | 2.4 (2.4) | 0.15 | NA |
| C-reactive protein, mg/L | ||||
| D1, mean (SD) | 88 (45) | 136 (96) | 0.07 | NA |
| D3, mean (SD) | 91 (89) | 122 (102) | 0.40 | NA |
| ICU, yes, n (%) | 11 (73) | 20 (69) | 0.76 | NA |
| ICU length of stay, days, mean (SD) | 14 (8.0) | 10 (9.6) | 0.279 | NA |
| Mechanical ventilation, yes, n (%) | 4 (27) | 6 (21) | 0.65 | NA |
| Days on mechanical ventilation, mean (SD) | 15 (5.3) | 11 (9.2) | 0.750 | NA |
| Length of hospital stay, days, mean (SD) | 20 (10.3) | 14 (9.9) | 0.485 | NA |
SD, standard deviation; RR- Relative Risk; CI, confidence interval; NA, not applied; BMI, Body mass index; SAPS III, Simplified Acute Physiology Score 3; SOFA, sequential organ failure assessment score; ICU, intensive care unit; N, number of participants.
*
p < 0.20 and included in the binary logistic regression.
a
p-value from the univariate analysis.
b
RR form the regression analysis.
c
For five patients, CT scan was not performed at hospital admission.