Table 3

Risk analysis between failure rates with T-score, body mass index, or combined.

Variable

Threshold

Failure Rate

Percentage

P-Value


T-score

T ≥ 0

0/172

0%

0.003


0 > T > -1.5

2/161

1.2%


T ≤ -1.5

3/40

8%


Body mass index

(kg/m2)

< 29

1/234

0.4%

0.05


≥ 29

4/139

2.9%


Combined

T < -1.5 & BMI ≥ 29

3/12

25%

< 0.001


Others

2/361

0.6%


Gross and Liu Journal of Orthopaedic Surgery and Research 2012 7:1   doi:10.1186/1749-799X-7-1

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