Inpatient Admissions and Outpatient/Ambulatory Surgery

Type of Arthritis/Treatment	Hospitalizations	Median LOS	Median Charges	% Outpatient	Mean Age	% Female
All Forms of Arthritis	41,928	3	$13,953	27.0	63.7	60.2
Osteoarthritis:	30,329	4	$16,308	19.1	65.9	60.9
With Knee Replacement	15,444	4	18,617	0.0	69.2	64.3
With Hip Replacement	6,630	4	19,203	0.0	67.6	56.8
With Lesion Excision/Destruction	2,535	1	3,869	97.4	54.8	54.7
With Osteotomy	930	1	4,828	65.5	50.4	47.1
With Arthroplasty	925	1	4,708	72.0	56.1	59.4
With Arthrocentesis	499	1	155	90.6	65.7	67.5
With Arthroscopy	384	1	3,386	96.1	52.6	56.0
With Shoulder Replacement	368	3	14,646	0.0	68.6	51.9
With Injection	185	1	1,012	56.2	72.2	78.4
With Other Surgery	1,800	1	5,410	61.8	57.3	58.8
With No Surgery	629	4	5,051	0.0	76.1	73.9
Type of Arthritis/Treatment	Hospitalizations	Median LOS	Median Charges	% Outpatient	Mean Age	% Female
Spine-Related Arthritis:	5,665	1	$ 2,351	55.4	61.3	59.4
With Spinal Injections	1,689	1	431	93.4	65.0	61.1
With Spinal Canal Exploration	604	3	8,867	0.0	60.8	48.5
With Spinal Fusion	476	3	15,764	0.0	52.7	57.4
With Other Surgery	2,256	1	2,115	69.1	57.0	58.7
With No Surgery	640	3	4,704	0.0	73.1	69.2
Type of Arthritis/Treatment	Hospitalizations	Median LOS	Median Charges	% Outpatient	Mean Age	% Female
Rheumatoid Arthritis:	2,158	2	$ 5,972	41.4	59.1	75.4
With Arthroplasty	624	4	17,136	11.9	60.6	79.0
With Arthrocentesis	198	1	274	67.7	56.8	65.7
With Arthrodesis	154	1	5,843	54.5	59.1	81.2
With Injection	141	1	70	87.9	57.9	83.0
With Synovectomy	95	1	3,941	85.3	50.8	75.8
With Other Surgery	624	1	4,462	63.5	58.0	72.1
With No Surgery	322	4	4,836	0.0	62.8	74.8
Type of Arthritis/Treatment	Hospitalizations	Median LOS	Median Charges	% Outpatient	Mean Age	% Female
Arthritis From Infections/Disorders	1,682	5	$10,507	9.8	53.7	39.5
Other Arthritis	2,094	1	$ 4,810	63.5	51.6	51.8

Note: 39 outpatient/ambulatory surgery cases were excluded from this analysis because the data for these cases appeared to be in error.