Table 1 Demographic and clinical characteristics of the participants
Demographic characteristics | Validity test, n =85 | Reliability test, n=29 |
|---|---|---|
Age (Mean±SD) | 62.3 ± 11.8 | 63.7 ± 10.7 |
Sex [(N (%)] | ||
 Female | 37 (43.5) | 10 (34.5) |
 Male | 48 (56.5) | 19 (65.5) |
Marital status [(N (%)] | ||
 Married | 72 (84.7) | 26 (89.7) |
 Single | 4 (4.7) | 1 (3.4) |
 Widowed | 7 (8.2) | 1 (3.4) |
 Divorced | 2 (2.4) | 1 (3.4) |
Employment [(N (%)] | ||
 Full-time | 2 (2.4) | 0 (0) |
 Part-time | 5 (5.9) | 1 (3.4) |
 Retired | 70 (82.4) | 26 (89.7) |
 Others (farmers) | 8 (9.4) | 2 (6.9) |
Educational level [(N (%)] | ||
 Below senior middle school | 39 (45.9) | 14 (48.3) |
 Above senior middle school | 46 (54.1) | 15 (51.7) |
Primary causes of renal failure [(N (%)] | ||
 Chronic glomerular nephritis | 43 (50.6) | 10 (34.5) |
 Diabetes | 9 (10.6) | 5 (17.2) |
 Hypertension | 5 (5.9) | 4 (13.8) |
 Polycystic kidney | 2 (2.4) | 1 (3.4) |
 Lupus nephritis | 3 (3.5) | 1 (3.4) |
 Others and unknown | 23 (27.1) | 8 (27.6) |
Dialysis duration, years (Mean±SD) | 4.9 ± 3.7 | 8.9 ± 7.0 |
Laboratory parameters (Mean±SD) | ||
 Serum creatinine, mg/dL | 952.7 ± 280.8 | 966.6 ± 269.8 |
 Hemoglobin, g/L | 110.4 ± 17.8 | 116.6 ± 14.5 |
 Serum albumin, g/L | 38.9 ± 5.7 | 38.4 ± 4.6 |
 Serum phosphorus, mmol/L | 1.8 ± 0.6 | 1.8 ± 0.7 |
 Serum iPTH, pg/dL | 245.7 ± 182.3 | 282.4 ± 215.1 |
 hs-CRP, mg/L | 5.3 ± 8.9 | 6.5 ± 10.3 |