Table 3 Overview of patient- and surgery-related factors with regard to their impact on the complication rate at the dental implant site after augmentation using tibia bone grafts

Sex

(female/male)

10

(f = 3 vs m = 7)

f = 66.7% vs m = 57.1%

0.8355

0.8355

0.111 —

19.438

Age

(> 45 years, < 45 years)

10

(> 45 = 8 vs < 45 = 2)

 > 45 = 62.5% vs < 45 = 50%

0.7364

0.7364

0.096 —

26.31

Smoking

(yes/no)

10

(yes = 5 vs no = 5)

yes = 60% vs no = 60%

1

 >0.999

0.094 —

10.645

Alcohol consumption (yes/no)

9

(yes = 4 vs no = 5)

yes = 75% vs no = 60%

1.667

0.6877

0.137 —

26.249

Comorbidity (yes/no)

10

(yes = 4 vs no = 6)

yes = 50% vs no = 66.7%

0.5556

0.6209

0.047 —

5.905

Season

(> 20°C, < 20°C)

10

(> 20 °C = 3 vs

 < 20 °C = 7)

 > 20 °C = 66.7% vs

 < 20 °C = 57.1%

1.296

0.8355

0.111 —

19.438