Table 2—

Standard error of measurement

First author [Ref.]Patients with 2 6MWDs at baseline nIntraclass correlation coefficientsd (baseline 6MWD)sem (95% CI)
All studies3050.9011135 (30–42)
Puhan 11900.8911137 (29–53)
Goldstein 21890.889935 (29–45)
Mador 22130.9310829 (21–41)
Mador 19260.9412030 (22–40)
Mador 18290.839841 (21–59)
Krauza 23410.9610420 (16–26)
Mador, unpublished results170.887927 (17–35)
  • 6MWD: 6-min walk distance; CI: confidence interval.