Table 1.
Variables | All patients | Stage I | Stage II | Stage III | Stage IV | P-value |
---|---|---|---|---|---|---|
Patients, n | 73 | 13 | 20 | 28 | 12 | |
Males, n (%) | 36 (49.3) | 7 (53.8) | 5 (25.0) | 18 (64.3) | 6 (50.0) | 0.385 |
Age (years) | 62.5±12.9 | 64.8±10.4 | 62.7±12.2 | 59.9±14.7 | 66.1±11.8 | 0.479 |
BMI (kg/m2) | 22.6±3.5 | 23.2±3.4 | 21.9±3.0 | 22.5±3.5 | 23.0±4.4 | 0.702 |
sCr (µmol/L) | 62.0±13.4 | 63.6±15.7 | 57.6±10.9 | 70.3±33.2 | 67.8±16.4 | 0.309 |
Notes: Continuous variables are presented as mean ± SD; categorical variables are presented as number (percentage). If P<0.05, there was a statistically significant difference among the four groups (stage I, stage II, stage III, and stage IV), analyzed by one-way ANOVA (for continues variables) and chi-squared test (for categorical data). n, number of patients.
Abbreviations: BMI, body mass index; sCr, serum creatinine.