Table 3. Relationship between the prognostic nutritional index (PNI) value and the clinical background of patients.
| Variables | PNI ≥41.15 (n=19) | PNI <41.15 (n=22) | P value |
|---|---|---|---|
| Age, years | 54.79±10.50 | 57.18±12.90 | 0.52 |
| Male sex, n (%) | 14 (73.7) | 20 (90.9) | 0.14 |
| BMI, kg/m2 | 19.83±3.66 | 21.42±3.36 | 0.24 |
| NRS2002 | 0.95±1.12 | 2.27±1.38 | 0.00 |
| Time before commencement of feeding, hours | 30.22±18.52 | 27.30±13.43 | 0.57 |
| Protein intake first 3 days, g | 98.42±42.33 | 90.45±45.51 | 0.56 |
| Protein intake first 7 days, g | 192.11±78.64 | 199.09±96.65 | 0.80 |
| The average calorie intake first 3 days, kCal | 631.25±300.60 | 651.52±420.99 | 0.87 |
| The average calorie intake first 7 days, kCal | 696.75±305.11 | 708.29±394.88 | 0.92 |
| Commencement of parenteral nutrition within 7 days, n (%) | 6 (31.6) | 10 (45.5) | 0.36 |
| Vitamin B1 first 7 days, mg | 48.32±52.20 | 37.27±57.33 | 0.52 |
| Furosemide, n (%) | 16 (84.2) | 15 (68.2) | 0.23 |
| AKI, n (%) | 7 (36.8) | 11 (50.0) | 0.39 |
| Pneumonia, n (%) | 16 (84.2) | 18 (81.8) | 0.83 |
| Postoperative MV, days | 4.0±4.32 | 4.14±3.44 | 0.94 |
| Postoperative ECMO, n (%) | 11 (57.9) | 9 (40.9) | 0.27 |
| Postoperative ICU LOS, days | 5.53±4.24 | 5.82±2.82 | 0.79 |
| Hospital LOS, days | 36.68±34.59 | 43.86±36.96 | 0.52 |
| Mortality, n (%) | 10 (52.6) | 12 (54.5) | 1.00 |
LTX, lung transplantation; NRS2002, nutrition risk score 2002; PNI, prognostic nutritional index; BMI, body mass index; AKI, acute kidney injury; LOS, length of stay; ECMO, extracorporeal membrane oxygenation; MV, mechanical ventilation.