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Table 4 Probability of impaired bone formation in different setting of threshold of bone apposition rate

From: Reducing the risk of impaired bone apposition to titanium screws with the use of fibroblast growth factor-2−apatite composite layer coating

Threshhold setting in bone apposition rate

Probability of impaired bone formation

FGF(−)

FGF(+)

≤68.82%

0.1

0.002

≤63.75%

0.05

3.5 × 10−4

≤50%

0.005

1.4 × 10−6