Table 3 Age- and sex-partitioned RIs for serum Crea and Cys C.
From: Updated reference intervals for serum cystatin C and creatinine based on age and sex variations
Age | Male | Female | ||||
---|---|---|---|---|---|---|
2.5th (95% CI) | 97.5th (95% CI) | n | 2.5th (95% CI) | 97.5th (95% CI) | n | |
Cys C (Old non-partitioned by age and sex RI: 0.51 to 1.09Â mg/L) | ||||||
≤ 18 | 0.68 (0.68 to 0.74) | 1.04 (1.00 to 1.16) | 6 | 0.66 (0.68 to 0.74) | 1.03 (1.05 to 1.21) | 25 |
18–30 | 0.64 (0.66 to 0.68) | 1.01 (1.03 to 1.08) | 1041 | 0.56 (0.58 to 0.59) | 0.92 (0.94 to 0.97) | 2778 |
31–40 | 0.62 (0.64 to 0.66) | 1.02 (1.05 to 1.08) | 1424 | 0.53 (0.55 to 0.56) | 0.89 (0.92 to 0.93) | 3447 |
41–50 | 0.63 (0.65 to 0.67) | 1.07 (1.10 to 1.13) | 958 | 0.54 (0.57 to 0.58) | 0.93 (0.96 to 0.98) | 2222 |
51–60 | 0.65 (0.68 to 0.70) | 1.15 (1.18 to 1.23) | 814 | 0.58 (0.61 to 0.62) | 1.02 (1.05 to 1.08) | 1387 |
61–70 | 0.68 (0.72 to 0.74) | 1.26 (1.28 to 1.37) | 305 | 0.64 (0.67 to 0.69) | 1.15 (1.17 to 1.23) | 372 |
≥ 71 | 0.72 (0.76 to 0.85) | 1.46 (1.42 to 1.84) | 94 | 0.75 (0.76 to 0.85) | 1.40 (1.34 to 1.63) | 95 |
Crea (old RIs: age 20–60 years, Male: 57–97 µmol/L, Female: 41–73µmol/L; age > 60 years, Male: 57–111 µmol/L; Female: 41–88 µmol/L) | ||||||
≤ 18 | 51.7 (50.6 to 56.3) | 87.9 (84.0 to 96.0) | 6 | 38.7 (37.9 to 42.2) | 67.2 (65.1 to 72.3) | 25 |
18–50 | 55.3 (56.1 to 57.8) | 94.0 (94.3 to 97.2) | 3423 | 38.32 (39.3 to 40.2) | 68.4 (69.2 to 70.7) | 8447 |
51–70 | 46.0 (46.5 to 48.9) | 82.4 (94.3 to 97.2) | 1772 | 37.92 (38.9 to 40.1) | 70.3 (71.0 to 73.2) | 1795 |
≥ 71 | 51.9 (50.4 to 58.1) | 98.6 (95.6 to 107.6) | 94 | 40.52 (39.0 to 45.4) | 76.6 (74.4 to 84.9) | 95 |