Table 2

Adalimumab levels for patients on different dosages of MTX

GroupGroup doseMedian MTX-dose (mg/week)IQRNMedian adalimumab level (μg/mL)IQR
0000–0514.11.3–7.7
15–10106.9–10348.04.0–10.5
212.5–201515–20496.94.8–11.1
3≥22.52525–25877.75.5–10.5
  • p Values between group 1 and 2: p=0.835; groups 1–3: p=0.474; group 2–3: p=0.279.

  • MTX, methotrexate.