Association of low FCGR3B CN with UK, but not Hong Kong, SLE. qPCR was used to determine FCGR3B/CD36 ratios in normal controls and patients with SLE. In each case, results from 1 (representative of 2) qPCR plate are shown (all of the raw data are shown in Fig. S1, A and B). The horizontal bar indicates the mean. The P values shown indicate comparison of all cases and controls using a stratified Student's t test. (A) UK SLE patients, n = 171; UK controls, n = 176. (B) Hong Kong SLE patients, n = 159; Hong Kong controls, n = 150.