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. 2019 Aug 9;6:37. doi: 10.1186/s40634-019-0205-5

Table 2.

The observed and expected frequencies of the six shape-based clusters representing the knee valgus moment

Observed (Expected) Chi-square contribution
Boys Girls Boys Girls
Phase 1 Downslopes 276 (420) 698 (695) 49.46 0.01
Early Peaks 575 (464) 642 (768) 26.40 20.76
Early Troughs 42 (41) 80 (67) 0.04 2.40
Peaks 154 (149) 272 (247) 0.14 2.48
Troughs 160 (164) 278 (272) 0.11 0.14
Upslopes 305 (273) 532 (452) 3.68 14.08
Phase 2 Downslopes 207 (101) 152 (116) 110.77 10.87
Early Peaks 78 (112) 178 (129) 10.20 18.92
Early Troughs 4 (10) 3 (11) 3.42 6.07
Peaks 10 (36) 38 (41) 18.75 0.28
Troughs 55 (40) 28 (46) 6.05 6.74
Upslopes 10 (66) 20 (76) 47.31 41.01

Chi-square contribution is the individual cell contribution to Chi-square value from the chi square test. P-value for the Chi-Square test < 0.001