Table 2 MDRD-based GFR according to sex and age in 2003
 | Mean age (SD), years | Total no. | GFR (ml/min/1.73 m2) | ||||
|---|---|---|---|---|---|---|---|
>90 Stage 1 | 60–89 Stage 2 | 30–59 Stage 3 | 15–29 Stage 4 | <15 Stage 5 | |||
All participants | |||||||
 Women | 38.42 (20.66) | 60 | 24 (40.00) | 11 (18.33) | 14 (23.33) | 9 (15.00) | 2 (3.33) |
 Men | 47.66 (18.83) | 83 | 26 (31.33) | 11 (13.25) | 18 (21.69) | 14 (16.87) | 14 (16.87) |
Age (years) | |||||||
 <20 | 13.6 (4.0) | 26 | 24 (92.30) | 0 (0) | 1 (3.87) | 0 (0) | 1 (3.83) |
 20–29 | 23.6 (2.9) | 16 | 9 (56.25) | 5 (31.25) | 2 (12.50) | 0 (0) | 0 (0) |
 30–39 | 35.0 (3.3) | 14 | 4 (28.57) | 4 (28.57) | 3 (21.43) | 1 (7.14) | 2 (14.29) |
 40–49 | 43.8 (3.0) | 27 | 7 (25.93) | 6 (22.22) | 5 (18.52) | 7 (25.93) | 2 (7.41) |
 50–59 | 53.8 (2.6) | 28 | 4 (14.29) | 3 (10.17) | 12 (42.86) | 4 (14.29) | 5 (17.86) |
 60–69 | 64.0 (2.0) | 22 | 2 (9.09) | 2 (9.09) | 5 (22.73) | 9 (40.91) | 4 (18.18) |
 >70 | 76.6 (6.5) | 10 | 0 (0) | 2 (20.00) | 4 (40.00) | 2 (20) | 2 (20) |