Table 3.

Incidence of knee arthroscopy (per 10⁵ person-years) and mean age of patients for osteoarthritis, degenerative meniscal tear, and traumatic meniscal tear (debridement and repair) in Sweden from 2001 to 2012

Year	Osteoarthritis		Degenerative meniscus		Traumatic meniscus (debridement)		Traumatic meniscus (repair)
	Incidence	Mean age	Incidence	Mean age	Incidence	Mean age	Incidence	Mean age
2001	76	52	40	46	27	39	0.4	28
2002	71	52	39	47	22	39	0.4	30
2003	71	51	41	46	21	38	0.4	31
2004	69	52	43	46	20	38	0.4	31
2005	72	52	42	46	20	38	0.8	28
2006	76	53	44	47	16	38	0.7	29
2007	77	53	45	47	16	38	0.5	31
2008	87	53	59	48	13	37	0.5	31
2009	78	53	47	47	13	36	0.7	30
2010	66	52	46	46	13	36	0.8	30
2011	59	52	46	46	14	35	0.8	29
2012	51	53	42	47	13	35	0.7	30