Table 3.
Characteristics of the study population and nutritional parameters by different admission reasons
| RTI (n=192) | Other causes (n=144) | Statistical value | p | |
| Age (year) | 87.56±5.29 | 87.25±5.11 | 0.292 | 0.589 |
| Male (n, %) | 185 (96.35%) | 143 (95.97%) | 0.033 | 0.855 |
| Smoking history (n, %) | 77 (40.1%) | 46 (30.87%) | 3.101 | 0.078 |
| DM (n, %) | 88 (45.83%) | 79 (53.02%) | 1.734 | 0.188 |
| Hyperlipidemia (n, %) | 98 (51.04%) | 79 (53.02%) | 0.132 | 0.717 |
| BMI (kg/m2) | 23.68±3.16 | 24.53±3.00 | 4.991 | 0.026 |
| TP (g/L) | 67.79±7.65 | 68.08±5.67 | 0.150 | 0.699 |
| Alb (g/L) | 37.43±4.62 | 40.00±5.25 | 33.01 | 0.000 |
| Haemoglobin (g/L) | 122.69±19.10 | 123.61±15.14 | 0.235 | 0.628 |
| Creatinine (umol/L) | 109.40±56.54 | 108.73±48.46 | 0.013 | 0.909 |
| BUN (mmol/L) | 9.92±5.10 | 8.53±3.84 | 7.670 | 0.006 |
| FBS (mmol/L) | 7.63±2.75 | 6.19±2.14 | 27.98 | 0.000 |
| UA (mmol/L) | 328.74±102.06 | 350.96±104.49 | 3.875 | 0.050 |
| Prealbumin (mg/dL) | 18.73±8.89 | 13.58±13.65 | 17.645 | 0.000 |
| GRNI score | 97.72±7.68 | 100.49±5.35 | 11.822 | 0.001 |
| CONUT score | 4.19±2.08 | 2.09±1.34 | 112.593 | 0.000 |
Alb, albumin; BMI, body mass index; BUN, blood urea nitrogen; CONUT, Controlling Nutritional Status; DM, diabetes mellitus; FBS, fasting blood glucose; GNRI, Geriatric Nutritional Risk Index; RTI, respiratory tract infection; TP, total protein; UA, uric acid.