Table 2 Comparison of 6-MWT parameters in patients with CKD and controls
6-MWT parameters | Patients with CKD Mean ± SD Median (IQR) | Control subjects Mean ± SD Median (IQR) | Mean difference %95 CI | p |
|---|---|---|---|---|
6-MWT distance, m | 444.60(354–538) | 604.80(566.40-650.50) | < 0.001* | |
6-MWT distance, % predicted | 70.19 ± 17.84 | 94.45 ± 13.29 | 24.25(17.60–30.90) | < 0.001* |
6MWw, kg/m | 35654.40(26923.20-45896.40) | 50,310(42687-54518.10) | < 0.001* | |
Heart rate, beats/min (resting) | 76.62 ± 13.02 | 82.06 ± 11.84 | 5.43(0.16–10.70) | 0.043* |
Peak heart rate, beats/min | 103.25 ± 18.48 | 108.51 ± 24.24 | 5.25[(-3.91)-14.42] | 0.258 |
Maximum heart rate,% | 61.91 ± 10.95 | 64.41 ± 15.14 | 2.50(-3.11-8.12) | 0.378 |
Systolic blood pressure, mmHg (resting) | 130(120–140) | 120(110-122.50) | 0.005* | |
∆ Systolic blood pressure, mmHg | 10(-10-20) | 10(3–30) | 0.023* | |
Diastolic blood pressure, mmHg (resting) | 80(70–80) | 75(70–80) | 0.469 | |
∆ Diastolic blood pressure, mmHg | 0(-10-10) | 10(0–10) | 0.002* | |
SpO2, % (resting) | 98(97–98) | 98(97–98) | 0.664 | |
∆ SpO2, % | -1(-2-0) | 0(-3-1) | 0.747 | |
Breathing frequency, breaths/min (resting) | 22(20–24) | 21(19.50–24) | 0.898 | |
∆ Breathing frequency, breaths/min | 4(2–8) | 5(4–8) | 0.215 | |
Dyspnea, 0–10 (resting) | 0(0–0) | 0(0–0) | 1.000 | |
∆ Dyspnea, 0–10 | 0(0–3) | 0(0-1.50) | 0.159 | |
Fatigue, 0–10 (resting) | 0(0–0) | 0(0–0) | 0.328 | |
∆ Fatigue, 0–10 | 1(0–3) | 0(0–3) | 0.467 |