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Table 1 Differences in each parameter between men and women

From: Contribution of sex and body constitution to three-dimensional lower extremity alignment for healthy, elderly, non-obese humans in a Japanese population

Variable

Men

Women

 

mean

95%CI

mean

95%CI

p value

Age (years)

71

69–73

68

66–70

0.03*

Body weight (kg)

63.7

61.0–66.5

48.3

46.3–50.3

<  0.01*

Body height (cm)

166.3

164.6–168.0

155.4

153.3–157.5

<  0.01*

Body mass index (BMI) (kg/m2)

23.0

22.2–23.8

20.0

19.3–20.6

<  0.01*

HKA in coronal plane (°)

182.7

181.9–183.6

180.6

179.7–181.5

<  0.01*

HKA in sagittal plane (°)

0.4

−2.6 – 3.1

−4.4

−6.0 – − 2.7

<  0.01*

Rotational alignment (°)

90.0

87.2–92.7

84.7

82.0–87.3

<  0.01*

  1. 95%CI 95% confidence interval, HKA hip-knee-ankle angle; HKA in sagittal plane: the minus values mean extension angle; Rotational alignment: the larger values mean internal rotation of the tibia relative to the femur; *Significant difference = p <  0.05