Table 4.
Logistic regression analysis of multi-factors affecting Hb of MHD patients.
| Factors | B | Wald | P | OR | 95% CI |
|---|---|---|---|---|---|
| Gender (ref: male) | 0.501 | 41.48 | <.001 | 1.651 | 1.417–1.922 |
| Age (yr) | −0.008 | 7.245 | .007 | 0.992 | 0.986–0.998 |
| Educational level (ref: illiteracy or semiliterate) | |||||
| Elementary school education | −0.126 | 1.042 | .307 | 0.881 | 0.692–1.123 |
| Junior high school education | 0.191 | 1.987 | .159 | 1.210 | 0.928–1.578 |
| High school education | 0.216 | 1.755 | .185 | 1.241 | 0.901–1.709 |
| College education or higher | 0.291 | 2.014 | .156 | 1.338 | 0.895–2.000 |
| Career (ref: full-time job) | |||||
| Work at home | −0.191 | 0.904 | .342 | 0.826 | 0.557–1.225 |
| Retire | −0.083 | 0.201 | .654 | 0.920 | 0.640–1.323 |
| Farmer | −0.197 | 0.933 | .334 | 0.821 | 0.551–1.225 |
| Unemployment | 0.035 | 0.033 | .856 | 1.035 | 0.712–1.505 |
| Family residence (ref: village) | |||||
| Town | 0.120 | 0.832 | .362 | 1.127 | 0.872–1.458 |
| City | 0.177 | 1.909 | .167 | 1.194 | 0.929–1.534 |
| Average monthly total family income (ref: <2000) | |||||
| 2000–4000 | 0.014 | 0.008 | .928 | 1.014 | 0.753–1.364 |
| 4001–8000 | 0.097 | 0.046 | .830 | 1.101 | 0.457–2.655 |
| >8000 | 0.090 | 0.147 | .702 | 1.094 | 0.690–1.736 |
| Smoking (ref: no smoking) | 0.156 | 1.792 | .181 | 1.169 | 0.930–1.469 |
| Drinking (ref: no drinking) | 0.112 | 0.780 | .377 | 1.118 | 0.873–1.433 |
| Dialysis age | 0.033 | 11.331 | .001 | 1.003 | 1.014–1.053 |
| Internal fistula (ref: catheter) | −0.145 | 2.715 | .099 | 0.865 | .728–1.028 |
| Type of dialysis (low-flux) | |||||
| High-flux | 0.889 | 1.600 | .206 | 2.432 | 0.614–9.638 |
| Hemodialysis Filtration (HDF > 1/2 wk) | 0.146 | 1.527 | .217 | 1.157 | 0.918–1.459 |
| Use of iron (ref: no using) | 0.538 | 48.358 | <.001 | 1.713 | 1.472–1.993 |
| Use of erythropoietin (ref: no using) | 0.152 | 0.898 | .343 | 1.164 | 0.850–1.593 |
| Weekly dosage of erythropoietin (U/W) | −0.002 | 0.168 | .682 | 0.998 | 0.991–1.006 |
| Cr (μmol/L) | 0.000 | 0.340 | .560 | 1.000 | 1.000–1.000 |
| Alb (g/L) | 0.023 | 20.769 | <.001 | 1.023 | 1.013–1.033 |
| TC (mmol/L) | 0.001 | 0.124 | .725 | 1.001 | 0.996–1.006 |
| TG (mmol/L) | 0.090 | 5.743 | .017 | 1.094 | 1.016–1.177 |
| HDL (mmol/L) | −0.005 | 0.002 | .960 | 0.995 | 0.818–1.211 |
| LDL (mmol/L) | 0.008 | 1.407 | .236 | 1.008 | 0.995–1.021 |
| Ca (mmol/L) | 0.033 | 0.903 | .342 | 1.034 | 0.965–1.108 |
| Mg (mmol/L) | −0.016 | 0.933 | .334 | 0.984 | 0.953–1.016 |
| P (mmol/L) | −0.004 | 0.696 | .404 | 0.996 | 0.987–1.005 |
Alb = albumin, Ca = blood calcium, Cr = creatinine, Hb = hemoglobin, HDL = high-density lipoprotein, LDL = low-density lipoprotein, MHD = maintenance hemodialysis, Mg = blood magnesium, P = blood phosphorus, TC = total cholesterol, TG = triglycerides.