Table 1.
Population characteristics and SF-36 data of study patients
| Variable | All patients (n = 92) | CKD (n=23) | ESRD (n=69) | p value (test of equality) |
|---|---|---|---|---|
| Age, years | 52.8 (15.3) | 46.1 (11.7) | 54.7 (15.2) | 0.01 |
| Male | 57 (62.0%) | 19 (83%) | 38 (55%) | 0.03 |
| White | 61 (66.3%) | 19 (83%) | 42 (61%) | 0.07 |
| BMI | 27.1 (5.1) | 28.0 (4.2) | 26.8 (5.3) | 0.21 |
| High school education | 35 (38.0%) | 6 (26.1%) | 29 (42.0%) | 0.22 |
| Employed | 21 (22.8%) | 8 (34.8%) | 13 (18.8%) | 0.15 |
| Diabetes | 32 (34.8%) | 4 (17.4%) | 28 (41%) | 0.05 |
| CHF | 14 (15.6%) | 3 (13.0%) | 11 (16.4%) | 0.99 |
| Depression | 17 (18.7%) | 1 (4%) | 16 (23%) | 0.06 |
| RLS | 30 (34.9%) | 8 (34.8%) | 22 (34.9%) | 0.99 |
| Total number of antihypertensives | 2.0 ± 1.4 | 2.5 ± 4.2 | 1.981.3 | 0.14 |
| Use of β-blockers | 49 (53.8%) | 11 (47.8%) | 38 (55.9%) | 0.63 |
| Hemoglobin, g/dl | 11.8 ± 1.3 | 11.7 ± 1.21 | 11.9 ± 1.3 | 0.51 |
| Serum potassium, mEq/l | 4.8 ± 0.8 | 4.9 ± 0.5 | 4.7 ± 0.9 | 0.06 |
| Serum bicarbonate, mEq/l | 23.4 ± 3.0 | 22.8 ± 3.3 | 23.6 ± 2.9 | 0.15 |
| Serum calcium, g/dl | 9.1 ± 0.6 | 9.1 ± 0.5 | 9.1 ± 0.66 | 0.81 |
| Phosphorus, mg/dl | 5.1 ± 1.4 | 4.6 ± 0.8 | 5.3 ± 1.4 | 0.04 |
| BUN, mg/dl | 56.3 ± 18.4 | 57.2 ± 13.5 | 56.0 ± 19.7 | 0.49 |
| Serum creatinine, mg/dl | 7.8 ± 3.4 | 5 ± 1.7 | 8.7 ± 3.3 | <0.001 |
| Serum albumin, g/dl | 3.9 ± 0.5 | 3.9 ± 0.7 | 3.87 ± 0.4 | 0.49 |
| Physical component scale | 39.9 ± 6.9 | 41.2 ± 8.3 | 39.5 ± 6.3 | 0.18 |
| Mental component scale | 45.4 ± 7.1 | 44.8 ± 7.4 | 45.6 ± 7.1 | 0.85 |
| PF | 60.9 ± 26.4 | 70.2 ± 27.7 | 57.8 ± 25.4 | 0.05 |
| RP | 56.1 ± 43 | 55.7 ± 46.9 | 56.2 ± 42.0 | 0.94 |
| BP | 61.8 ± 29.8 | 64.2 ± 31.1 | 61 ± 29.5 | 0.60 |
| RE | 33 ± 44.7 | 36.4 ± 45.9 | 31.8 ± 44.7 | 0.77 |
| MH | 77.2 ± 16.6 | 77 ± 14.1 | 77.2 ± 17.5 | 0.50 |
| SF | 70.2 ± 24.9 | 73.3 ± 26.5 | 69.1 ± 24.5 | 0.43 |
| VT | 47.1 ± 20.9 | 45.2 ± 18.8 | 47.7 ± 21.7 | 0.63 |
| GH | 44.1 ± 20.0 | 38.9 ± 19.8 | 45.9 ± 20.0 | 0.19 |
p value is the result of testing the equality of CKD to HD to PD (CKD = HD = PD). Hemoglobin (whole blood) in g/dl may be converted to g/l by multiplying by 10.0; serum potassium in mEq/l to mmol/l by multiplying by 1.0; serum bicarbonate in mEq/l to mmol/l by multiplying by 1.0; serum calcium in mg/dl to mmol/l by multiplying by 0.25; serum phosphorus in mg/dl to mmol/l by multiplying by 0.323; BUN in mg/dl to mmol/l by multiplying by 0.357; serum creatinine in mg/dl to μmol/l by multiplying by 88.4; serum albumin in g/dl may be converted to g/l by multiplying by 10.