| Mean SF-8 score (95% CI) | |
| All sample PCS | 42.2 (CI 41.54 to 42.89) |
| Men PCS | 43.8 (CI 42.74 to 44.85) |
| Women PCS | 41.2 (CI 40.29 to 42.03) |
| All sample MCS | 39.3 (CI 38.55 to 40.00) |
| Men MCS | 41.0 (CI 39.87 to 42.20) |
| Women MCS | 38.1 (CI 37.18 to 39.02) |
Abbreviations: CI, confidence interval; PCS, physical component summary; MCS, mental component summary.