Table 2.
Nighttime and daytime BP values and dipping proportion according to eGFR and day-to-night ratio of the urinary sodium and potassium excretion status
|
n (%) |
Day-to-night ratio of the urinary sodium excretion |
Day-to-night ratio of the urinary potassium excretion |
||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| eGFR ≥60 ml/min per 1.73 m2 |
eGFR < 60 ml/min per 1.73 m2 |
eGFR ≥60 ml/min per 1.73 m2 |
eGFR <60 ml/min per 1.73 m2 |
|||||||||||||||||
| Q1 306 (17.16) |
Q2 381 (21.37) |
Q3 490 (27.48) |
Q4 606 (33.99) |
P Value | Q1 482 (35.21) |
Q2 407 (29.73) |
Q3 298 (21.77) |
Q4 182 (13.29) |
P Value | Q1 356 (19.97) |
Q2 358 (20.08) |
Q3 483 (27.09) |
Q4 586 (32.87) |
P Value | Q1 432 (31.56) |
Q2 430 (31.41) |
Q3 304 (22.21) |
Q4 203 (14.83) |
P Value | |
| Nighttime SBP (mmHg) | 120.00 (109.00–131.00) | 117.00 (107.00–126.00) | 111.00 (103.75–122.00) | 110.00 (102.00–118.00) | <0.001 | 128.50 (116.75–142.00) | 123.00 (113.00–136.00) | 121.50 (111.00–134.00) | 120.00 (108.75–133.25) | <0.001 | 117.00 (106.00–127.75) | 113.50 (105.00–126.25) | 113.00 (105.00–122.00) | 111.00 (102.00–120.00) | < 0.001 | 127.00 (116.00–142.00) | 124.00 (113.00–137.00) | 124.00 (113.00–137.00) | 119.00 (109.00–132.00) | <0.001 |
| Nighttime DBP (mmHg) | 78 .00 (70.00–85.00) | 76.00 (68.00–82.00) | 72.00 (65.00–80.00) | 70.00 (63.00–77.00) | <0.001 | 82.00 (74.00–91.00) | 80.00 (72.00–89.00) | 79.50 (71–87) | 78 (69.75–86.25) | <0.001 | 75.00 (67.25–83.00) | 74.00 (66.75–82.00) | 73.00 (66.00–81.00) | 70.00 (64.00–78.00) | < 0.001 | 82.00 (74.00–91.00) | 79.00 (72.00–88.00) | 81.00 (72.00–88.75) | 78.00 (70.00–87.00) | <0.001 |
| Daytime SBP (mmHg) | 124.00 (113.00–132.00) | 122.00 (112.00–131.00) | 118.00 (110.00–127.00) | 117.00 (108.00–125.00) | <0.001 | 131.00 (120.00–143.00) | 126.00 (118.00–138.00) | 127.00 (118.00–139.00) | 126.00 (117.00–139.00) | 0.008 | 123.00 (112.00–130.75) | 120.00 (111.00–129.00) | 119.00 (112.00–128.00) | 117.00 (109.00–125.25) | < 0.001 | 131.00 (120.00–143.75) | 127.00 (119.00–139.00) | 128.00 (118.00–140.00) | 125.00 (117.00–139.00) | 0.004 |
| Daytime DBP (mmHg) | 82.00 (73.00–89.00) | 81.00 (73.00–87.00) | 77.00 (71.00–84.00) | 76.00 (70.00–83.00) | <0.001 | 85.00 (77.00–93.00) | 85.00 (78.00–92.00) | 85.00 (77.00–92.00) | 84.00 (75.75–91.00) | 0.169 | 80.00 (72.00–88.00) | 79.50 (72–86.25) | 79.00 (72.00–86.00) | 76.00 (71.00–83.00) | < 0.001 | 85.00 (78.00–93.00) | 84.00 (77.00–91.00) | 86.00 (77.00–93.00) | 84.00 (75.00–91.00) | 0.142 |
| Dippersa (%) | 10.78 | 15.52 | 19.02 | 20.03 | 0.003 | 10.81 | 14.00 | 17.91 | 25.41 | <0.001 | 16.57 | 15.64 | 17.43 | 18.35 | 0.757 | 12.53 | 14.92 | 16.50 | 19.80 | 0.110 |
| Nondippersa (%) | 56.21 | 59.21 | 61.15 | 64.24 | 0.119 | 50.31 | 56.51 | 53.48 | 54.56 | 0.304 | 57.58 | 57.82 | 63.28 | 62.95 | 0.186 | 52.20 | 55.48 | 51.16 | 54.95 | 0.617 |
| Risersa (%) | 33.01 | 25.26 | 19.84 | 15.73 | <0.001 | 38.88 | 29.48 | 28.72 | 19.89 | <0.001 | 25.84 | 26.54 | 19.29 | 18.70 | 0.004 | 35.27 | 29.60 | 32.34 | 25.25 | 0.061 |
BP, blood pressure; DBP, diastolic blood pressure; SBP, systolic blood pressure.
Data are given as n (%) for categorical variables and medians (interquartile range) for continuous variables.
a
Percent of SBP circadian patterns (dippers, nondippers, and risers).