Table 2 Quality of Life (QOL) scores by psychological health status
|  | < 3 point(\( \overline{x} \) ±s) | ≥3 point(\( \overline{x} \) ±s) | Total(\( \overline{x} \) ±s) | t | P value |
|---|---|---|---|---|---|
Physical | 21.2 ± 2.5 | 18.7 ± 2.7 | 20.6 ± 2.7 | 36.013 | < 0.001 |
Psychological | 17.7 ± 2.1 | 15.4 ± 2.5 | 17.2 ± 2.4 | 38.213 | < 0.001 |
Social relationships | 10.0 ± 1.5 | 8.6 ± 1.8 | 9.7 ± 1.7 | 31.980 | < 0.001 |
Environment | 25.3 ± 3.7 | 22.2 ± 4.0 | 24.6 ± 4.0 | 30.001 | < 0.001 |