Baseline | 12 months follow-up | |||||

Participants with PID (n=28) | Participants without PID (n=1641) | Difference (95% CI) | Participants with PID (n=28) | Participants without PID (n=1641) | Difference (95%CI) | |

Mean EQ-5D Score (SD) | 0.86 (0.16) | 0.94 (0.11) | 0.08 (0.04 to 0.12) | 0.89 (0.16) | 0.94 (0.11) | 0.05 (0.01 to 0.09) |

Mean EQ-VAS score (SD)^{*} | 72.5 (14.4) | 80.3 (14.8) | 7.8 (2.1 to 13.4) | 71.5 (24.8) | 80.5 (16.2) | 9.03 (2.8 to 15.2) |

↵* The number of respondents for EQ-VAS is slightly fewer: PID=27, no PID=1609.