Characteristic | 2012 n (%) | 2013 n (%) | 2014 n (%) | 2015 n (%) | P value |
---|---|---|---|---|---|
PBC | 1389 (58.4) | 1244 (55.8) | 1724 (68.7) | 2194 (66.8) | 0.000a |
PCD | 418 (17.6) | 568 (25.5) | 476 (19.0) | 745 (22.7) | 0.005a |
EP | 437 (18.4) | 319 (14.3) | 245 (9.8) | 342 (10.4) | 0.000a |
Unknown | 136 (5.7) | 97 (4.4) | 65 (2.6) | 5 (0.2) | 0.000a |