Table 2.
Renal size and clinical parameters of different age groups
| Parameter | 18 – 30 years (n = 87) |
31 – 40 years (n = 68) |
41 – 50 years (n = 52) |
51 – 60 years (n = 32) |
61 – 80 years (n = 13) |
p value |
|---|---|---|---|---|---|---|
| RK, cm | 10.75 ± 1.3 | 10.6 ± 0.9 | 10.7 ± 0.9 | 10.4 ± 0.7 | 10.5 ± 0.9 | n.s. |
| LK, cm | 10.6 ± 1.2 | 10.8 ± 1.3 | 10.9 ± 0.9 | 10.4 ± 0.7 | 10.8 ± 1.1 | n.s. |
| RCK, cm | 0.96 ± 0.2 | 1.1 ± 0.1 | 0.92 ± 0.2 | 0.98 ± 0.2 | 0.89 ± 0.2 | n.s. |
| LCK, cm | 1.00 ± 0.2 | 1.00 ± 0.2 | 0.98 ± 0.2 | 0.95 ± 0.2 | 0.97 ± 0.2 | n.s. |
| Weight, kg | 70 ± 16 | 81 ± 21 | 80 ± 22 | 79 ± 13 | 83 ± 15 | <0.01 |
| Height, cm | 165 ± 5 | 166 ± 9 | 164 ± 10 | 163 ± 10 | 156 ± 7 | n.s. |
| BMI (kg/m2) | 25.7 ± 4.9 | 28.9 ± 6.2 | 29 ± 6 | 29.8 ± 4 | 33.9 ± 6 | n.s. |
| BSA, m2 | 1.8 ± 0.2 | 1.9 ± 0.2 | 1.9 ± 0.3 | 1.9 ± 0.2 | 1.9 ± 0.2 | n.s. |
| CrCl, ml/min | 135 ± 32 | 131 ± 30 | 116 ± 27 | 99.8 ± 35 | 100 ± 21 | <0.001 |
| Systolic BP, mm Hg | 120 ± 9 | 121 ± 9 | 122 ± 11 | 124 ± 9 | 130 ± 9 | <0.01 |
| Diastolic BP, mm Hg | 78 ± 5 | 79 ± 6 | 79 ± 6 | 79 ± 6 | 76 ± 8 | n.s. |
BP = Blood pressure; CrCl = creatinine clearance; LCK = left cortical length; LK = left kidney length; n.s. = not significant; RCK = right cortical length; RK = right kidney length.