Parameter | n (%) or mean ± SD or median (25th–75th IQR) |
---|---|
Hypocomplementaemiaa | |
 At recruitment | 150 (13.2 %) |
 Everb | 275 (24.1 %) |
Number of complement measurements per patient | 2 (1–3) |
 1 | 400 (35.1 %) |
 2 | 265 (23.3 %) |
 3 | 196 (17.2 %) |
 4 | 129 (11.3 %) |
 5 | 85 (7.5 %) |
 6 | 50 (4.4 %) |
 7 | 14 (1.2 %) |
 8 | 1 (0.1 %) |
Total number of complement measurements in data set | 1893 |
Time interval between complement measurements, years | 1.2 ± 0.4 |