Table 4 Association between the number of pockets ≥ 5 mm and anti-CCP antibody levels (referred to as its absence): ordinal logistic regression model

 No. of pockets ≥ 5 mm

1.010

0.977

1.043

0.560

 Gender (ref. female)

1.337

0.410

4.357

0.630

 Age

0.976

0.932

1.022

0.296

 Tobacco (ref. never)

1.144

0.428

3.052

0.789

 Disease activity (ref. remission/low)

1.196

0.442

3.231

0.725

 Disease evolution time

0.957

0.883

1.037

0.279

 No. of pockets ≥ 5 mm

1.022

0.996

1.050

0.087

 Gender (ref. female)

1.699

0.604

4.777

0.315

 Age

1.007

0.965

1.051

0.756

 Tobacco (ref. never)

0.941

0.382

2.319

0.895

 Disease activity (ref. remission/low)

1.745

0.709

4.297

0.226

 Disease evolution time

1.012

0.953

1.075

0.689

 No. of pockets ≥ 5 mm

1.031

1.003

1.062

0.031

 Gender (ref. female)

0.627

0.158

2.483

0.507

 Age

0.983

0.938

1.030

0.471

 Tobacco (ref. never)

0.898

0.331

2.436

0.832

 Disease activity (ref. remission/low)

2.268

0.806

6.384

0.121

 Disease evolution time

1.032

0.967

1.102

0.345