Table 3 Inter-correlations and descriptive statistics of study variables
| Â | Variables | Total Score | Item Score | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | 1 | 2 | 3 | 4 | M (SD) | 95% C.I. | M (SD) | 95% C.I. | |
1 | Intolerance of uncertainty | 1.00 |  |  |  | 36.40 (8.19) | 36.06–36.74 | 3.03 (0.68) | 3.00–3.06 |
2 | Uncertainty about COVID-19 | 0.506** | 1.00 |  |  | 30.77 (6.47) | 30.50–31.04 | 3.08 (0.65) | 3.05–3.10 |
3 | Perceived stress | 0.538** | 0.360** | 1.00 |  | 40.87 (6.81) | 40.58–41.15 | 2.92 (0.49) | 2.90–2.94 |
4 | General sleep status | 0.218** | 0.159** | 0.336** | 1.00 | 4.82 (2.72) | 4.71–4.94 | / | / |