Abstract 902 Table 2

Relationship between lifetime HCQ dose per year disease duration and disease damage

Lifetime Yearly Average HCQ Dose (grams, mean ± SD)p-value
SDI = 0SDI ≥ 1
Baseline 97.2 ± 49.2 (n=97) 74.2 ± 54.3 (n=189) p<0.001
3 years 99.2 ± 47.0 (n=75) 76.4 ± 54.6 (n=204) p<0.001
5 years 103.4 ± 45.0 (n=65) 77.2 ± 53.9 (n=200) p<0.001
  • HCQ = hydroxychloroquine; SD = standard deviation; SDI = SLICC/ACR damage index.

  • Note: HCQ 200 mg/day is equivalent to 73 grams/year, HCQ 300 mg/day is equivalent to 110 grams/year, HCQ 400 mg/day is equivalent to 146 grams/year.