Results of the generalised linear mixed model for 1-year mortality over 3 years of follow-up based on health-related quality of life (HRQoL) score before death (considering the most recent measurement, at the start of the 1-year period) in a longitudinal study
| HRQoL | β±sd | p-value | OR (95% CI) |
| SGRQ symptoms | 0.0386±0.0200 | 0.054 | 1.04 (1.00–1.08) |
| SGRQ activity | 0.1135±0.0199 | <0.001 | 1.12 (1.08–1.17) |
| SGRQ impacts | 0.1000±0.0209 | <0.001 | 1.11 (1.06–1.15) |
| SGRQ total | 0.1113±0.0224 | <0.001 | 1.12 (1.07–1.17) |
Modelled on a 4-point increase in St George's Respiratory Questionnaire (SGRQ) score.