Table 1

Patient number required for MCID in Harris Hip Score at different power levels.

MCID = 7

MCID = 10


Power

80%

90%

80%

90%


SD


13

55

73

28

37


15

73

97

36

48


MCID: Minimum clinically important difference

Achten et al. BMC Musculoskeletal Disorders 2010 11:8   doi:10.1186/1471-2474-11-8

Open Data