Table 3.
Characteristics by ABPM classifications, percents or median (interquartile range).
| Characteristic | Normal (n= 138) |
WCH (n= 13) |
Masked HTN (n= 116) |
Confirmed HTN (n= 48) |
|---|---|---|---|---|
| Age | 13 [10, 15] | 7 [5, 12] | 12 [9, 16] | 10 [9, 15] |
| % Male | 60% (83) | 54% (7) | 59% (69) | 55% (27) |
| Race | ||||
| Caucasian | 79% (109) | 85% (11) | 68% (79) | 64% (31) |
| AA | 12% (16) | 8% (1) | 21% (24) | 27% (13) |
| Other | 9% (13) | 8% (1) | 11% (13) | 8% (4) |
| Hispanic ethnicity | 17% (23) | 8% (1) | 13% (15) | 21% (10) |
| Height %ile | 27 [9, 61] | 19 [8, 48] | 24 [7, 50] | 19 [6, 41] |
| Weight %ile | 41 [21, 80] | 30 [6, 71] | 52 [22, 80] | 37 [14, 67] |
| Weight (Kg) | 46 [34, 57] | 25 [18, 30] | 43 [30, 58] | 34 [27, 53] |
| BMI %ile | 57 [24, 89] | 52 [14, 71] | 68 [37, 92] | 57 [30, 78] |
| Percent obese, BMI > 95th% | 17% (23) | 8% (1) | 18% (21) | 15% (7) |
| Iohexol GFR | 43 [31, 55] | 50 [36, 71] | 46 [36, 59] | 35 [23, 51] |
| 1o Disease Glomerular | 20% (27) | 8% (1) | 20% (23) | 23% (11) |
| Years of CKD | 9 [5, 13] | 6 [5, 8] | 7 [4, 11] | 8 [3, 10] |
| Hx of HTN | 44% (60) | 46% (6) | 44% (50) | 57% (26) |
| Anti-HTN | 73% (101) | 62% (8) | 68% (79) | 65% (31) |
| ACE-i | 62% (86) | 54% (7) | 49% (57) | 33% (16) |
| Ca Blocker | 5% (7) | 23% (3) | 16% (19) | 31% (15) |
| ARB | 11% (15) | 0% (0) | 9% (10) | 8% (4) |
| LVMI | 30 [26, 35] | 35 [27, 40] | 33 [27, 39] | 36 [29, 44] |
| % LVH | 9% (11) | 11% (1) | 16% (17) | 31% (12) |
| Urine protein:creatinine | 0.41 [0.15, 0.90] | 0.22 [0.14, 0.63] | 0.47 [0.20, 1.02] | 0.99 [0.30, 2.22] |
| Proteinuria uP/C > 2 | 7% (9) | 8% (1) | 11% (12) | 32% (15) |
| Blood Pressure parameters | ||||
| Casual SBP | 104 [97, 110] | 115 [106, 121] | 107 [101, 115] | 122 [117, 131] |
| Casual SBP %ile | 36 [19, 63] | 92 [82, 97] | 65 [ 44, 77] | 97 [92, 99] |
| Casual DBP | 61 [55, 67] | 71 [63, 75] | 65 [59, 73] | 80 [75, 86] |
| Clinic DBP %ile | 47 [24, 65] | 0.96 [0.64, 0.97] | 62 [41, 85] | 96 [92, 98] |
| 24o SBP Index | 0.85 [0.81, 0.89] | 0.89 [0.87, 0.90] | 0.96 [0.92, 0.99] | 1.01 [0.96, 1.06] |
| 24o SBP Mean | 104 [99, 111] | 102 [99, 111] | 115 [110, 122] | 121 [114, 128] |
| SBP Load | 3% [0%, 7%] | 6% [4%, 7%] | 28% [14%, 42%] | 48% [25%, 70%] |
| % Dip (S) | 13 [9, 16] | 11 [11, 16] | 10 [7, 13] | 11 [8, 14] |
| % Dip (D) | 19 [15, 23] | 20 [16, 23] | 15 [11, 19] | 16 [12, 20] |
| Other ABPM measures | ||||
| Wake SBP Index | 0.86 [0.81, 0.90] | 0.90 [0.86, 0.92] | 0.94 [0.91, 0.98] | 1.00 [0.94, 1.04] |
| Sleep SBP Index | 0.86 [0.80, 0.89] | 0.89 [0.85, 0.91] | 0.97 [0.93, 1.01] | 1.01 [0.96, 1.06] |
| Wake DBP Index | 0.79 [0.74, 0.83] | 0.81 [0.78, 0.85] | 0.89 [0.82, 0.94] | 0.97 [0.91, 1.02] |
| Sleep DBP Index | 0.81 [0.75, 0.86] | 0.87 [0.80, 0.90] | 0.97 [0.92, 1.02] | 1.02 [0.96, 1.14] |
| Wake SBP Load | 3% [0%, 7%] | 6% [3%, 12%] | 24% [10%, 38%] | 48% [22%, 64%] |
| Sleep SBP Load | 0% [0%, 8%] | 3% [0%, 6%] | 32% [14%, 47%] | 51% [24%, 81%] |
| Wake DBP Load | 3% [0%, 6%] | 3% [0%, 10%] | 15% [6%, 28%] | 38% [18%, 64%] |
| Sleep DBP Load | 5% [0%, 11%] | 7% [5%, 15%] | 36% [23%, 50%] | 56% [35%, 80%] |
Note: 17 KIDs were not included due to missing clinic BP measurements.