Table 4.

Hospital costs for primary total hip arthroplasties hospitalizations in Spain from 2001 to 2008

Year	Mean (€)	Median (€)	Percentile 25	Percentile 75	Total cost (Millions of €)	P*
2001	6635	5654	4626	7710	120.65 €	<0.001
2002	6731	5889	4283	7495	128.09 €
2003	7418	6145	4916	8603	144.98 €
2004	7654	6309	5232	8502	151.03 €
2005	7345	5890	4581	8404	150.28 €
2006	8754	7107	5528	9476	185.37 €
2007	8625	7234	5626	9645	184.19 €
2008	9474	7297	6385	10034	211.34 €

* P value for comparing means along the study period