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Table 4 Grouping analysis for correlation between blood zeaxanthin levels and bone strength of femoral neck

From: Associations between blood antioxidant levels and femoral neck strength

Variables

Femoral Neck bone mineral density (gms/cm2)

Compression Strength Index (g/kg-m)

Bending Strength Index (g/kg-m)

Impact Strength Index (g/kg-m)

Sβ (95% CI)

P Value

P*

Sβ (95% CI)

P Value

P*

Sβ (95% CI)

P Value

P*

Sβ (95% CI)

P Value

P*

Age (year)

 < 53

-0.20 (-0.86, 0.46)

0.561

0.720

0.46 (-1.52, 2.43)

0.651

0.173

0.34 (-0.41, 1.10)

0.375

0.349

0.02 (-0.07, 0.12)

0.629

0.171

 ≥ 53

-0.05 (-0.53, 0.43)

0.842

2.19 (0.62, 3.76)

0.006

0.83 (0.15, 1.52)

0.018

0.11 (0.03, 0.19)

0.006

Gender

Male

-0.04 (-0.84, 0.76)

0.926

0.767

1.01 (-0.82, 2.84)

0.281

0.676

0.67 (-0.18, 1.52)

0.124

0.871

0.03 (-0.08, 0.15)

0.566

0.397

Female

-0.17 (-0.59, 0.26)

0.450

1.58 (0.07, 3.09)

0.041

0.58 (-0.06, 1.22)

0.076

0.09 (0.02, 0.16)

0.014

BMI (kg/m2)

 < 24

-0.08 (-0.82, 0.66)

0.835

0.879

0.55 (-1.49, 2.59)

0.598

0.586

0.14 (-0.75, 1.03)

0.758

0.408

0.04 (-0.08, 0.17)

0.495

0.741

 ≥ 24

-0.15 (-0.60, 0.29)

0.499

1.39 (0.06, 2.72)

0.041

0.66 (0.09, 1.23)

0.022

0.07 (0.00, 0.13)

0.035

  1. Adjusted for age and gender
  2. P* Interaction P value