Demographic variables

Implants (n)

Marginal bone loss (mean ± SD) (mm)

PI

(n)

PI

(%)

Total

1814

0.13 ± 0.13

419

23.1%

Age

≥ 60 Years

349

0.12 ± 0.12

73

20.9%

≥ 59 Years

1465

0.13 ± 0.14

346

23.6%

Gender

Female

831 

0.13 ± 0.13

190

22.9%

Male

983

0.13 ± 0.14

229

23.3%

Anatomic variables

Jaw

Maxilla

920

0.14 ± 0.15^*

209

22.7%

Mandible

894

0.11 ± 0.12

210

23.3%

Location

Anterior

369

0.13 ± 0.15

82

22.2%

Posterior

1445

0.13 ± 0.13

337

23.3%