Journal of Experimental Orthopaedics

Table 6 Percent of OMERACT-OARSI responders in different patient populations

From: White blood cell concentration correlates with increased concentrations of IL-1ra and improvement in WOMAC pain scores in an open-label safety study of autologous protein solution

% Responders	Week 1	Week 2	Week 4	Month 3	Month 6
Total Population	20.0	45.5	63.6	72.7	72.7
IL-1ra:IL-1β Ratio > 1000	28.6	71.4	71.4	100.0	85.7
WBC > 30 k/μl	28.6	71.4	71.4	100.0	85.7

*Total population (n = 11), patients with APS whose IL-1ra:IL-1β ratio > 1000 (n = 7/9), and with WBC concentration in APS > 30 k/μl (n = 7/8)

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