Table 1.

Patient characteristics of 688 children with CKD stages 3–5

Patient CharacteristicsStage 3aStage 3bStage 4Stage 5All
N5021637052688
Age, yr12.3 (2.9)12.2 (3.3)12.2 (3.4)12.1 (3.0)12.2 (3.3)
Time since CKD diagnosis, yr5.6 (4.5)6.3 (4.8)6.1 (4.5)4.2 (3.8)6.0 (4.6)
Men, %70.067.664.655.865.3
CAKUT/glom.pathy/other, %70.0/10.0/20.072.2/4.6/23.168.1/9.5/22.457.7/13.5/28.868.8/8.3/23.0
Birth history
 Gestational age, wk38.8 (2.0)38.5 (2.4)38.6 (2.5)38.7 (2.0)38.6 (2.4)
 Birth weight, kg3.04 (0.64)3.15 (0.54)3.19 (0.65)3.11 (0.68)3.17 (0.61)
 Birth length, cm48.4 (4.6)49.6 (3.6)50.0 (3.6)49.6 (3.1)49.8 (3.7)
 Small for gestational age, %34.813.218.017.017.7
eGFR, ml/min per 1.73 m251 (4)36 (4)22 (4)13 (1)28 (11)
Urine albumin-to-creatinine ratio, mg/g86 (309)212 (700)487 (1697)1034 (2819)359 (1170)
Height SDS−0.81 (1.06)−1.13 (1.34)−1.54 (1.44)−1.60 (1.43)−1.36 (1.40)
 Height less than third percentile, %16.025.535.936.531.3
BMI SDS, %0.13 (1.02)0.04 (1.89)0.23 (1.41)−0.01 (1.03)0.14 (1.53)
 Malnourished4.010.27.65.88.0
 Overweight/obese20.024.123.817.323.1
Physical activity, %
 0 h/wk8.021.723.846.223.7
 1–2 h/wk16.019.322.219.220.6
 3–4 h/wk20.016.013.95.814.4
 >4 h/wk56.042.940.228.841.3
  • Numbers are presented as percentage, mean (SD), or for urine albumin-to-creatinine ratio, median (interquartile range). CAKUT, congenital anomalies of the kidney and urinary tract; glom.pathy, glomerulopathy; SDS, SD score; BMI, body mass index.