Table 2.
BP and laboratory variablesa
| Variable | Racial/Ethnic Groups
|
P | ||||
|---|---|---|---|---|---|---|
| All | White | Black | Hispanic | Other | ||
| Overall population | ||||||
| SBP (mmHg) | <0.0001 | |||||
| mean (SE) | 122.9 (0.4) | 123.1 (0.4) | 126.3 (0.7) | 119.7 (0.7) | 121.3 (1.0) | |
| 5th, 95th percentile | 98.2, 157.5 | 98.0, 157.4 | 100.1, 165.1 | 97.6, 150.0 | 96.3, 160.4 | |
| DBP (mmHg) | 0.0015 | |||||
| mean (SE) | 70.5 (0.2) | 70.5 (0.3) | 71.5 (0.5) | 69.3 (0.4) | 71.5 (0.8) | |
| 5th, 95th percentile | 51.4, 89.7 | 51.4, 89.5 | 51.4, 93.5 | 50.7, 89.4 | 52.8, 88.6 | |
| potassium (mmol/L) | <0.0001 | |||||
| mean (SE) | 4.0 (<0.1) | 4.0 (<0.1) | 3.9 (<0.1) | 3.9 (<0.1) | 3.9 (<0.1) | |
| 5th, 95th percentile | 3.4, 4.5 | 3.5, 4.5 | 3.3, 4.4 | 3.4, 4.4 | 3.3, 4.4 | |
| hemoglobin (mg/dl) | <0.0001 | |||||
| mean (SE) | 14.5 (<0.1) | 14.6 (<0.1) | 13.6 (<0.1) | 14.6 (<0.1) | 14.3 (<0.1) | |
| 5th, 95th percentile | 12.1, 16.8 | 12.4, 16.9 | 10.8, 16.0 | 12.1, 16.9 | 11.8, 16.4 | |
| bicarbonate (mmol/L) | 0.0002 | |||||
| mean (SE) | 24.8 (0.1) | 24.8 (0.1) | 24.9 (0.1) | 24.4 (0.1) | 24.9 (0.2) | |
| 5th, 95th percentile | 20.5, 27.7 | 20.6, 27.7 | 20.7, 27.9 | 20.2, 27.3 | 20.9, 27.9 | |
| uric acid (mg/dl) | <0.0001 | |||||
| mean (SE) | 5.4 (<0.1) | 5.4 (<0.1) | 5.4 (<0.1) | 5.1 (<0.1) | 5.5 (<0.1) | |
| 5th, 95th percentile | 3.3, 7.7 | 3.3, 7.8 | 3.3, 7.9 | 3.1, 7.4 | 3.5, 7.7 | |
| calcium (mg/dl) | 0.0001 | |||||
| mean (SE) | 9.5 (<0.1) | 9.5 (<0.1) | 9.5 (<0.1) | 9.5 (<0.1) | 9.5 (<0.1) | |
| 5th, 95th percentile | 8.9, 10.0 | 8.9, 10.0 | 8.9, 10.1 | 8.9, 10.0 | 8.8, 10.0 | |
| phosphorus (mg/dl) | 0.2639 | |||||
| mean (SE) | 3.8 (<0.1) | 3.8 (<0.1) | 3.8 (<0.1) | 3.8 (<0.1) | 3.8 (<0.1) | |
| 5th, 95th percentile | 2.9, 4.7 | 2.9, 4.7 | 2.9, 4.7 | 2.9, 4.7 | 2.9, 4.7 | |
| PTH (pg/ml) | <0.0001 | |||||
| mean (SE) | 43.9 (0.5) | 42.5 (0.5) | 51.5 (1.3) | 45.3 (0.5) | 44.6 (1.6) | |
| 5th, 95th percentile | 18.4, 81.5 | 17.9, 78.3 | 19.9, 100.7 | 21.4, 80.9 | 20.6, 83.6 | |
| eGFR <60 ml/min per 1.73 m2 | ||||||
| SBP (mmHg) | 0.0300 | |||||
| mean (SE) | 136.8 (1.1) | 135.9 (1.2) | 144.5 (2.8) | 137.1 (5.0) | 144.3 (5.2) | |
| 5th, 95th percentile | 101.7, 179.5 | 101.5, 177.0 | 102.0, 194.7 | 91.6, 186.6 | 111.3, - | |
| DBP (mmHg) | 0.2500 | |||||
| mean (SE) | 65.9 (0.6) | 65.7 (0.7) | 68.5 (2.2) | 69.6 (2.5) | 67.5 (2.0) | |
| 5th, 95th percentile | 39.3, 89.3 | 39.2, 88.9 | 15.1, 95.0 | 45.5, 87.2 | 52.2, 84.4 | |
| potassium (mmol/L) | 0.0092 | |||||
| mean (SE) | 4.2 (<0.1) | 4.2 (<0.1) | 4.0 (<0.1) | 4.1 (0.1) | 4.3 (0.1) | |
| 5th, 95th percentile | 3.4, 4.9 | 3.5, 4.9 | 3.3, 4.8 | 3.4, 4.7 | 3.7, 4.9 | |
| hemoglobin (mg/dl) | <0.0001 | |||||
| mean (SE) | 13.8 (0.1) | 13.9 (0.1) | 12.6 (0.2) | 13.9 (0.2) | 13.5 (0.3) | |
| 5th, 95th percentile | 11.2, 16.2 | 11.4, 16.2 | 9.0, 15.2 | 10.9, 15.7 | 10.4, 16.2 | |
| bicarbonate (mmol/L) | 0.6700 | |||||
| mean (SE) | 24.9 (0.1) | 24.9 (0.1) | 24.8 (0.3) | 24.4 (0.4) | 25.2 (0.4) | |
| 5th, 95th percentile | 20.3, 28.5 | 20.3, 28.5 | 19.8, 28.8 | 20.1, 29.4 | 21.0, 27.9 | |
| uric acid (mg/dl) | 0.0200 | |||||
| mean (SE) | 6.4 (0.1) | 6.3 (0.1) | 6.9 (0.2) | 6.2 (0.3) | 6.4 (0.2) | |
| 5th, 95th percentile | 4.0, 9.0 | 4.0, 8.9 | 3.8, 9.8 | 3.3, 8.5 | 4.7, 8.5 | |
| calcium (mg/dl) | 0.1600 | |||||
| mean (SE) | 9.5 (<0.1) | 9.5 (<0.1) | 9.5 (0.1) | 9.8 (0.1) | 9.4 (0.1) | |
| 5th, 95th percentile | 8.9, 10.2 | 8.9, 10.2 | 8.6, 10.1 | 8.8, 10.8 | 8.7. 10.1 | |
| phosphorus (mg/dl) | 0.8500 | |||||
| mean (SE) | 3.9 (< 0.1) | 3.9 (<0.1) | 3.8 (0.1) | 3.9 (0.1) | 3.8 (0.2) | |
| 5th, 95th percentile | 2.9, 4.8 | 2.9, 4.8 | 2.9, 5.0 | 2.9, 4.8 | – | |
| PTH (pg/ml) | 0.0097 | |||||
| mean (SE) | 65.7 (2.3) | 61.7 (2.1) | 117.9 (2.1) | 64.2 (7.4) | 54.6 (7.3) | |
| 5th, 95th percentile | 21.4, 146.2 | 21.5, 135.5 | 20.6, 301.5 | 21.5, 143.0 | 18.1, 123.4 | |
a
ANOVA was used for comparisons between groups. DBP, diastolic BP; eGFR, estimated GFR; SBP, systolic BP.