Table 2.

Descriptions of the hospital-level variables in a study of endoprosthesis implementation in Finland for 39,125 THA operations

Proportion of arthroplasty operations in hospital that were THAs, mean (SD)	0.58	(0.10)
Proportion of all operations in hospital that were arthroplasty, mean (SD)	0.13	(0.21)
Femur models per 100 THAs in hospital, mean (SD)	5.51	(4.74)
Hospital’s annual arthroplasty volume, n (%)
< 51 operations	2,135	(5.5)
51–150 operations	9,999	25.6)
151–300 operations	8,814	(22.5)
> 300 operations	18,177	(46.5)