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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Arthritis Rheumatol. 2020 Jan 7;72(3):448–453. doi: 10.1002/art.41121

Table 3 –

Hydroxychloroquine Toxicity in Each Hydroxychloroquine Blood Level Tertile

No Toxicity
n (%)
Toxicity
n (%)
P-value P-value for Trend
HCQ Maximum Tertiles (ng/mL) 0.0340 0.0143
0 – 1182 161 (98.8%) 2 (1.2%)
1183 – 1752 157 (95.2%) 8 (4.8%)
1753 – 6281 153 (93.3%) 11 (6.7%)
HCQ Mean Tertiles (ng/mL) 0.0124 0.0027
0 – 741 162 (98.8%) 2 (1.2%)
741.5 – 1176.5 158 (96.3%) 6 (3.7%)
1177– 3513 151 (92.1%) 13 (7.9%)