Table 3.
Comparison of the slopes of eGFR and TKV between the two age groups
| Younger group | Older group | P value | |
|---|---|---|---|
| Age group (years) | 13–41 | 42–75 | |
| Mean age (years) | 34 ± 6.4 | 57 ± 10.5 | |
| Male/female | 11/12 | 7/16 | |
| eGFR (ml/min/1.73 m2) | 87.0 ± 29.5 | 55.9 ± 19.7 | <0.0001 |
| eGFR slope (ml/min/1.73 m2/year) | −4.6 ± 7.3 | −2.1 ± 3.1 | 0.1540 |
| eGFR slope/initial eGFR (%/year) | −4.2 ± 9.2 | −4.4 ± 7.6 | 0.9640 |
| 1/Cr slope (dl/mg/year) | −0.06 ± 0.10 | −0.03 ± 0.06 | 0.3876 |
| 1/Cr slope/initial 1/Cr × 100 (%/year) | −3.0 ± 8.1 | −3.8 ± 7.1 | 0.7535 |
| TKV (ml) | 1509.3 ± 874.3 | 1840.8 ± 1001.2 | 0.2381 |
| TKV slope (ml/year) | 110.2 ± 207.5 | 63.5 ± 96.0 | 0.3326 |
| TKV slope/initial TKV (%/year) | 7.6 ± 10.3 | 3.6 ± 6.6 | 0.1215 |
| Log TKV slope (log ml/year) | 0.03 ± 0.04 | 0.01 ± 0.03 | 0.1877 |
| Log TKV slope/initial log TKV (%/year) | 0.9 ± 1.4 | 0.4 ± 1.0 | 0.1580 |
Forty-six patients whose TKV slopes were measured were divided into younger and older age groups for comparison. Data are the mean ± SD. P values were calculated by Student’s t test