Analysis of medical service use of knee osteoarthritis and knee meniscal and ligament injuries in Korea: a cross-sectional study of national patient sample data

Table 3 Distribution of medical expenditure in knee osteoarthritis and knee meniscal and ligament injury

Classification	Knee OA					Knee meniscal and ligament injury
	Case (n)		Cost^a		Per-case cost^a	Case (n)		Cost^a		Per-case cost^a
	N = 48,321	%	Total	%		N = 19,136	%	Total	%
Procedure/surgery	5403	11.18	7,593,254,872	31.41	1,405,377.5	4555	23.80	1,887,655,557	34.31	414,414.0
Injection	37,050	76.67	4,732,291,088	19.58	127,727.2	8315	43.45	365,245,211	6.64	43,926.1
Outpatient visit (consultation)	48,283	99.92	4,021,230,425	16.64	83,284.6	19,084	99.73	715,896,835	13.01	37,512.9
Hospitalization	3033	6.28	2,757,254,594	11.41	909,084.9	2403	12.56	1,186,629,123	21.57	493,811.5
Physiotherapy	25,667	53.12	1,337,965,293	5.54	52,127.8	11,048	57.73	334,564,005	6.08	30,282.8
Radiographic evaluation/intervention	47,232	97.75	1,277,960,897	5.29	27,057.1	17,919	93.64	323,895,267	5.89	18,075.5
Examination	10,310	21.34	1,144,231,241	4.73	110,982.7	3351	17.51	357,995,050	6.51	106,832.3
Anesthesia	8576	17.75	907,924,433	3.76	105,868.1	1829	9.56	224,006,652	4.07	122,474.9
Medication	6327	13.09	399,489,786	1.65	63,140.5	3043	15.90	105,707,519	1.92	34,737.9
Psychotherapy	21	0.04	674,087	0.00	32,099.4	1	0.01	12,579	0.00	12,579.0

ISSN: 1471-2474