Table 1 Resuts of regression models using basline and 6 month variables to predict 24 month remision, CHAQ ≥ 0.75, and JAQQ score.

Remission

223

Logistic

Ln (number of active joints)*

0.72 (0.55, 0.95)

0.63 (0.47, 0.85)

RF

0.52 (0.14, 2.00)

0.51 (0.13, 1.99)

Ln (CHAQ at month 0)*

0.61 (0.33, 1.12)

0.49 (0.25, 0.98)

Ln (onset to first visit)^§

0.92 (0.68, 1.25)

0.92 (0.67, 1.26)

Ln (age of onset)^#

1.07 (0.76, 1.51)

1.16 (0.82, 1.64)

CMAQ ≥ 0.75

291

Logistic

CHAQ ≥ 0.75 at momth 0

7.47 (2.48, 22.46)

2.17 (0.68, 6.89)

Ln (number of active joints )*

1.02 (0.72, 7.43)

1.25 (0.87, 1.78)

RF

2.14 (0.67, 6.66)

2.38 (0.72, 7.92)

Ln (JAQQ at month 0)

1.56 (0.34, 7.10)

2.38 (0.73, 7.75)

Interaction JAQQ x CHAQQ

1.04 (0.90, 1.21)

1.22 (0.94, 1.59)

JAQQ

270

Linear

Ln (JAWW at month 0)

0.34 (0.02, 0.78)

0.75 (0.42, 1.07)

Ln (CHAQ at month 0)*

0.43 (-0.06, 0.92)

-0.12 (-0.64, 0.26)

RF

-0.05 (-0.60, 0.50)

-0.10 (-0.58, 0.38)

Ln (age of onset)^#

0.12 (-0.05, 0.28)

0.00 (-0.15, 0.15)

Enthesitis^¶

0.01 (-0.35, 0.38)

-0.04 (-0.41, 0.33)

Interaction JAQQ x CHAQQ

-0.01 (-0.09, 0.07)

0.15 (0.05, 0.26)