Supplementary Table 2.

Age groups of patients undergoing rTHA.

Age	2012	2013	2014	2015	2016	2017	2018	All
<55	6910 (18.5%)	6755 (17.1%)	6470 (16.3%)	6355 (15.9%)	6275 (14.6%)	6315 (14%)	6160 (12.9%)	45240 (15.5%)
55-64	8675 (23.2%)	9995 (25.3%)	9890 (25%)	10375 (25.9%)	10585 (24.6%)	10965 (24.4%)	11545 (24.1%)	72030 (24.6%)
65-74	10125 (27.1%)	10905 (27.6%)	11475 (29%)	11150 (27.9%)	12965 (30.1%)	14050 (31.3%)	15240 (31.9%)	85910 (29.4%)
75+	11615 (31.1%)	11840 (30%)	11735 (29.6%)	12125 (30.3%)	13245 (30.8%)	13620 (30.3%)	14860 (31.1%)	89040 (30.5%)
Total	37,325	39,495	39,580	40,020	43,070	44,950	47,810	292,250