Table 2.
Baseline demographic and clinical characteristics of the final matched sample according to exposure status
| Baseline characteristics | APD-RPM n = 56 | APD-without-RPM n = 56 | STD | P value |
|---|---|---|---|---|
| Demographic data | ||||
| Age, mean (SD) | 56.6 (14.0) | 55.9 (16.8) | 0.04 | 0.81 |
| Female gender, n (%) | 14 (25.0) | 19 (33.9) | 0.19 | 0.41 |
| Anthropometric data | ||||
| BMI (kg/m2), mean (SD) | 27.0 (4.3) | 26.4 (5.8) | 0.09 | 0.56 |
| Chronic kidney disease | ||||
| CKD cause, n (%) | 0.94 | |||
| Diabetes | 13 (23.2) | 11 (19.6) | 0.08 | |
| Cardiovascular disease | 3 (5.4) | 4 (7.1) | 0.07 | |
| Glomerulonephritis | 16 (28.6) | 16 (28.6) | 0.00 | |
| Interstitial nephritis | 3 (5.4) | 3 (5.4) | 0.00 | |
| Polycystic kidney disease | 2 (3.6) | 5 (8.9) | 0.19 | |
| Systemic diseases | 0 (0.0) | 1 (1.8) | 0.13 | |
| Family history | 1 (1.8) | 1 (1.8) | 0.00 | |
| Unknown | 15 (26.8) | 12 (21.4) | 0.13 | |
| Others | 3 (5.4) | 3 (5.4) | 0.00 | |
| Previous treatment, n (%) | 21 (37.5) | 21 (37.5) | 0.00 | 1.00 |
| Hemodialysis | 15 (71.4) | 12 (57.1) | ||
| Transplant | 6 (28.6) | 9 (42.9) | ||
| Distance to hospital (km), mean (SD) | 16.4 (21.6) | 23.7 (26.0) | 0.28 | 0.11 |
| Cause APD, n (%) | 0.97 | |||
| Patient choice | 38 (67.9) | 39 (69.6) | 0.04 | |
| Adequation | 12 (21.4) | 11 (19.6) | 0.05 | |
| Mechanical complications | 6 (10.7) | 6 (10.7) | 0.00 | |
| Dialysis vintage, n (%) | 0.94 | |||
| <1 yrs | 36 (64.3) | 36 (64.3) | 0.00 | |
| 1–3 yrs | 14 (25.0) | 15 (26.8) | 0.04 | |
| >3 yrs | 6 (10.7) | 5 (8.9) | 0.06 | |
| Residual diuresis (ml), n (%) | 0.56 | |||
| <150 ml/d | 14 (25.0) | 12 (21.4) | 0.09 | |
| 150-400 ml/d | 1 (1.8) | 3 (5.4) | 0.16 | |
| >400 ml/d | 41 (73.2) | 41 (73.2) | 0.00 | |
| Status | 0.12 | 0.68 | ||
| Prevalent patient | 37 (66.1) | 40 (71.4) | ||
| Incidence patient | 19 (33.9) | 16 (28.6) | ||
| Comorbidities | ||||
| Comorbidity index, mean (SD) | 5.38 (2.50) | 5.30 (2.78) | 0.02 | 0.89 |
| Hypertension, n (%) | 53 (94.6) | 52 (92.9) | 0.07 | 1.00 |
| Hypertension drugs, mean (SD) | 2.84 (2.10) | 2.62 (1.60) | 0.13 | 0.54 |
| SBP (mm Hg), mean (SD) | 137.3 (18.7) | 137.9 (18.3) | 0.03 | 0.86 |
| DBP (mm Hg), mean (SD) | 84.6 (10.3) | 83.4 (12.8) | 0.09 | 0.60 |
| Diabetes, n (%) | 14 (25.0) | 13 (23.2) | 0.04 | 1.00 |
| Follow-up | ||||
| Follow-up time, months (mean) | 10.4 (2.8) | 9.4 (3.1) | ||
| Cause of censure, n (%) | ||||
| Death | 2 (40.0) | 5 (27.8) | ||
| Technique failure | 2 (40.0) | 9 (50.0) | ||
| Transplant | 1 (20.0) | 4 (22.2) |
APD, automated peritoneal dialysis; BMI, body mass index; CKD, chronic kidney disease; DBP, diastolic blood pressure; PD, peritoneal dialysis; RPM, remote patient monitoring; SBP, systolic blood pressure; SD, standard deviation; STD, standardized differences.