Table 2. Clusters, symptom loadings and internal consistency (Cronbach’s ɑ) resulting from principal component analyses.
| CKD non-KRT | Peritoneal dialysis | Haemodialysis | Transplant | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Symptom clusters | Lack of energy & mobility | GI | Mental health | Lack of energy & mobility | GI | Skin | Mental health | Lack of energy & mobility | GI | Skin | Lack of energy & mobility | GI | Skin |
| Individual symptoms | |||||||||||||
| Pain | 0.52 | 0.62 | 0.66 | 0.72 | |||||||||
| Shortness of breath | 0.82 | 0.61 | 0.75 | ||||||||||
| Weakness | 0.69 | 0.75 | 0.82 | 0.74 | |||||||||
| Nausea | 0.80 | 0.78 | 0.85 | 0.88 | |||||||||
| Vomiting | 0.95 | 0.83 | 0.94 | 0.98 | |||||||||
| Poor appetite | 0.61 | 0.53 | 0.65 | ||||||||||
| Constipation | 0.58 | - | - | - | - | ||||||||
| Sore/dry mouth | 0.51 | 0.62 | |||||||||||
| Drowsiness | 0.74 | 0.73 | 0.70 | 0.79 | |||||||||
| Poor mobility | 0.84 | 0.76 | 0.86 | 0.96 | |||||||||
| Itching | 0.83 | 0.83 | 0.84 | ||||||||||
| Difficulty sleeping | 0.59 | ||||||||||||
| Restless legs | - | - | - | - | 0.63 | ||||||||
| Changes in skin | 0.74 | 0.71 | 0.78 | ||||||||||
| Diarrhoea | 0.61 | 0.75 | 0.55 | 0.61 | |||||||||
| Feeling anxious | 0.89 | 0.76 | 0.59 | 0.55 | |||||||||
| Feeling depressed | 0.79 | 0.61 | 0.60 | 0.55 | |||||||||
| Cronbach’s α | 0.82 | 0.72 | 0.76 | 0.74 | 0.85 | 0.56 | 0.74 | 0.85 | 0.73 | 0.71 | 0.88 | 0.72 | 0.54 |
| Variance (%) | 44.6 | 7.5 | 6.3 | 40.3 | 9.2 | 7.2 | 10.7 | 43.9 | 5.9 | 7.0 | 49.3 | 7.1 | 6.8 |
Note. GI, gastrointestinal; CKD non-KRT, people with chronic kidney disease not receiving kidney replacement therapy