Risk of hospitalisation after haemodialysis by patient and haemodialysis unit characteristics
| Hospitalisation after haemodialysis | |||
|---|---|---|---|
| Variables | RR | 95% CI | p Value |
| Patient characteristics | |||
| Age (years) | |||
| ≤49 | 1.000 | – | − |
| 50–59 | 1.205 | 1.090 to 1.332 | 0.0003 |
| 60–69 | 1.455 | 1.317 to 1.608 | <0.0001 |
| ≥70 | 1.732 | 1.560 to 1.921 | <0.0001 |
| Sex | |||
| Male | 1.000 | 0.966 to 1.035 | 0.981 |
| Female | 1.000 | – | |
| Type of insurance coverage | |||
| NHI | 1.000 | – | − |
| Medical aid | 1.334 | 1.281 to 1.389 | <0.0001 |
| Experience of prehospitalisation within 1 year | |||
| Yes | 1.837 | 1.773 to 1.903 | <0.0001 |
| No | 1.000 | – | − |
| Duration of illness (years) | |||
| 2–3 | 1.000 | – | − |
| 3–4 | 0.983 | 0.918 to 1.052 | 0.6158 |
| 4–5 | 0.987 | 0.917 to 1.063 | 0.7342 |
| 5–6 | 1.018 | 0.948 to 1.094 | 0.6185 |
| >6 | 0.911 | 0.860 to 0.965 | 0.0016 |
| CCI | |||
| 0 | 1.000 | – | − |
| 1, 2 | 1.058 | 0.955 to 1.173 | 0.2811 |
| 3, 4 | 1.065 | 0.956 to 1.186 | 0.2549 |
| 5+ | 1.104 | 0.982 to 1.241 | 0.0981 |
| Haemodialysis characteristics | |||
| Type of medical institution | |||
| General hospital (N=234) | 1.000 | – | − |
| Clinic or hospital (N=395) | 0.940 | 0.869 to 1.017 | 0.1220 |
| Presence of nephrologist | |||
| Yes (N=114) | 0.982 | 0.936 to 1.029 | 0.4429 |
| No (N=515) | 1.000 | – | |
| Total number of doctors who provided haemodialysis (per 10-doctor increase) | 1.001 | 0.973 to 1.030 | 0.9541 |
| Proportion of haemodialysis patient care specialists (per 10% increase) | 0.987 | 0.981 to 0.993 | <0.0001 |
| Total number of nurses who provided haemodialysis (per 10-nurse increase) | 0.876 | 0.833 to 0.921 | <0.0001 |
| Proportion of nurses experienced in haemodialysis (per 10% increase) | 0.993 | 0.983 to 1.003 | 0.1576 |
| Volume of haemodialysis per doctor | 0.963 | 0.936 to 0.992 | 0.0115 |
| Number of beds (per 10-bed increase) | 0.999 | 0.998 to 1.000 | 0.1065 |
| Emergency equipment in haemodialysis unit | |||
| Yes (N=573) | 1.000 | – | − |
| No (N=56) | 0.930 | 0.856 to 1.011 | 0.0882 |
| Fulfilment rate of criteria for duration of water analysis (per 10% increase) | 0.978 | 0.969 to 0.987 | <0.0001 |
| Number of haemodialysis machines (per 10-machine increase) | 1.046 | 1.029 to 1.063 | <0.0001 |
| Proportion of medical cost due to CKD (per 10%) | 0.924 | 0.915 to 0.933 | <0.0001 |
CCI, Charlson Comorbidity Index; CKD, chronic kidney disease; NHI, National Health Insurance; RR, relative risk.