Table 2. Clinical characteristics at baseline in normotensive and hypertensive children with chronic renal insufficiencya

VariablesNormotensive (n = 1987)Hypertensive (n = 1874)
a Data are presented as mean ± SD, unless otherwise specified. BMI indicates body mass index.
b Significant difference (P < 0.05) between children with and without hypertension.
Height SDS−1.4 ± 0.04−1.3 ± 0.03
Height percentiles23.1 ± 0.6323.0 ± 0.61
Weight SDSb−0.8 ± 0.04−0.5 ± 0.03
Weight percentiles34.2 ± 0.7540.4 ± 0.81
BMI,b (kg/m2)18.8 ± 0.1219.7 ± 0.13
BMI SDS−0.01 ± 0.040.3 ± 0.03
BMI <95th percentile, n (%)1851 (93.2)1633 (88.4)
BMI ≥95th percentile, n (%)b136 (6.8)214 (11.6)
Estimated GFRb (ml/min/1.73 m2)41.0 ± 0.439.2 ± 0.4
<25, n (%)489 (24.6)509 (27.6)
25 to 49, n (%)806 (40.6)778 (42.1)
50 to 75, n (%)692 (34.8)560 (30.3)
Blood pressureb
    systolic (mmHg)106.8 ± 0.3127.1 ± 0.4
    diastolic (mmHg)63.3 ± 0.277.6 ± 0.3
Antihypertensive medicationb (%)
    yes35.648.7
    no64.651.3