Table 3 Anchor - based method to determine the minimal important difference of the PFSDQ-M
Anchor | MID of PFSDQ-M (95% CI) | Score PFSDQ-M component |
|---|---|---|
CRDQ dyspnea score (MID =0.5 per-item × 5 items) | −5.0 (−6 to −3) | Activity |
−4.0 (−5 to −2) | Dyspnea | |
−3.2 (−4 to −1) | Fatigue | |
CRDQ total score (MID = 10) | −4.9 (−7 to −2) | Activity |
−4.0 (−6 to −1) | Dyspnea | |
−3.3 (−5 to −1) | Fatigue | |
6MWD (MID = 35 m) | −6,1 (−7 to −5) | Activity |