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Table 5 PTS (°) characteristics by sex and age groups

From: Radiographic measurement of the posterior tibial slope in normal Chinese adults: a retrospective cohort study

Age Male Female F value P value
Group A Group B Group C Group D Group A Group B Group C Group D sex age sex*age sex age sex*age
Left side 8.36 ± 3.82 N = 88 6.45 ± 3.62 N = 76 6.85 ± 3.72 N = 75 7.06 ± 4.14 N = 82 8.96 ± 3.62 N = 75 7.37 ± 3.17 N = 79 7.89 ± 3.73 N = 90 8.07 ± 3.74 N = 72 9.12 6.42 0.12 0.003 <  0.001 0.95
Right side 8.78 ± 3.89 N = 69 7.25 ± 4.42 N = 79 7.50 ± 3.41 N = 90 7.32 ± 3.70 N = 71 8.59 ± 3.82 N = 76 7.72 ± 3.99 N = 76 6.69 ± 3.87 N = 75 7.95 ± 3.88 N = 84 0.007 4.62 1.15 0.94 0.003 0.33