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Table 9 Multivariate regression analysis on bone loss variables

From: Immediate and early loading of hydrothermally treated, hydroxyapatite-coated dental implants: a 7-year prospective randomized clinical study

 

Mean bone loss in 2 years (mm)

Mean bone loss in 7 years (mm)

 

Coefficient

SE

p value

Coefficient

SE

p value

Age

      

  < 40 years

Ref.

     

  40–60 years

0.21

0.27

0.446

0.14

0.31

0.657

  > 60 years

0.12

0.28

0.67

0.18

0.31

0.569

Location

      

  Maxilla

Ref.

     

  Mandible

− 0.03

0.25

0.89

− 0.08

0.28

0.776

Group

      

  A

Ref.

     

  B

0.17

0.15

0.271

0.05

0.17

0.784

Gender

      

  Female

Ref.

     

  Male

0.06

0.16

0.73

0.15

0.18

0.415

Augmentation

0.36

0.17

0.051

0.20

0.20

0.321

Mean ISQ

0.03

0.02

0.174

0.03

0.02

0.214

Torque

0.00

0.01

0.757

0.01

0.01

0.609

Length (mm)

      

  8

Ref.

     

  10

− 0.84

0.50

0.105

− 0.44

0.56

0.441

  11.5

− 0.98

0.51

0.068

− 0.60

0.58

0.306

  13

− 0.90

0.52

0.098

− 0.53

0.59

0.377

Diameter (mm)

      

  3.7

Ref.

     

  4.1

0.54

0.25

0.041

0.50

0.28

0.087

  4.7

0.35

0.23

0.13

0.26

0.25

0.31

  6

0.23

0.27

0.409

0.15

0.30

0.62

Bone Type

      

  2

Ref.

     

  3

− 0.04

0.17

0.803

0.01

0.19

0.976

  4

− 0.31

0.43

0.484

− 0.79

0.49

0.122

N

42.00

  

42.00