Table 1.
Socio-demographic and clinical characteristics of the sample (N = 305)
| Variables | n (%) or M (P25, P75) |
|---|---|
| Age, years | 67.0 (59.0, 72.0) |
| < 65 | 142 (46.6) |
| ≥ 65 | 163 (53.4) |
| Gender | |
| Male | 192 (63.0) |
| Female | 113 (37.1) |
| Education level | |
| Junior high school and below | 143 (46.9) |
| Senior high school | 87 (28.5) |
| Senior high school above | 75 (24.6) |
| Place of residence | |
| Rural | 24 (7.9) |
| Urban | 281 (92.1) |
| Marital status | |
| Married | 252 (82.6) |
| Unmarried, divorced or widowed | 53 (17.4) |
| Per capita monthly household income | |
| < 2,000 Yuan RMB (approximately 280.4341 US$) | 91 (29.8) |
| 2,000–5,000 Yuan RMB (approximately 280.4341–701.0853 US$) | 107 (35.1) |
| > 5,000 Yuan RMB (approximately 701.0853 US$) | 107 (35.1) |
| Health insurance | |
| No | 6 (2.0) |
| Yes | 299 (98.0) |
| Primary cause | |
| Glomerulonephritis | 81 (26.6) |
| Diabetic nephropathy | 79 (25.9) |
| Hypertensive nephropathy | 83 (27.2) |
| Polycystic kidney/nephrotic syndrome | 28 (9.2) |
| unknown | 34 (11.2) |
| Duration of MHD since diagnosis, years | |
| < 2 | 63 (20.7) |
| 2–5 | 151 (49.5) |
| 5–10 | 53 (17.4) |
| > 10 | 38 (12.5) |
| Serum phosphorus (mmol/L) | 1.76 (1.42, 2.18) |
| Serum calcium (mmol/L) | 2.28 (2.16, 2.42) |
| Hemoglobin (g/L) | 110.0 (97.5, 120.0) |
| Intact parathyroid hormone (pg/ml) | 169.70 (87.44, 281.9) |
| Clearance index of urea (Kt/V) | 1.47 (1.28, 1.65) |
MHD Maintenance hemodialysis