Table 2. Co-relation analysis of fatigue with functional outcomes and contributing factors.
| Pearson correlation (r) | ||||||
|---|---|---|---|---|---|---|
| Mean (SD),n = 48 | General fatigue score (MFI-20) | Physical fatigue score (MFI-20) | Reduced activity score (MFI-20) | Reduced motivation scores (MFI-20) | Mental fatigue scores (MFI-20) | |
| ADDQoL | -2.19 (1.65) | -.445** | -.489** | -0.168 | -0.165 | -0.269 |
| Functional Status (6MWT) meters | 361.06 (73.43) | -.386** | -.535** | -0.199 | 0.025 | -0.176 |
| HbA1C | 7.38 (1.85) | -0.218 | -0.11 | -0.054 | -0.187 | -0.322 |
| BMI | 35.28 (7.35) | .350* | .316* | 0.126 | 0.126 | -0.051 |
| Sleep quality (PSQI) | 8.12(3.64) | .613** | .512** | .442** | .368* | .351* |
| Pain (VAS) | 2.64(2.37) | .437** | .437** | 0.142 | 0.097 | 0.205 |
| NOC | 3.91(2.11) | 0.199 | .402** | 0.114 | 0.114 | 0.201 |
| Years since diagnosis | 10.45(7.38) | -0.125 | 0.002 | -0.033 | -0.194 | -0.155 |
| Depression (BDI-2) | 11.54(8.75) | .422** | .460** | .425** | .400** | .512** |
*significance at p≤.05
** significance at p≤ .01.
Abbreviations: MFI-20: Multidimensional Fatigue Inventory; ADDQoL: Audit of Diabetes Dependent Quality of Life, 6MWT: 6 Minute Walk Test; HbA1c: glycosylated hemoglobin, BMI: Body Mass Index, PSQI: Pittsburg Sleep Quality Index; VAS: Visual Analog Scale; NOC: Number of complications, BDI-2: Beck’s Depression Inventory